./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/openbsd_cstrstr-alloca-2.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 bbb28681f649db641abcf0a1b656085d04f9cc91 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 17:39:01,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 17:39:01,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 17:39:01,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 17:39:01,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 17:39:01,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 17:39:01,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 17:39:01,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 17:39:01,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 17:39:01,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 17:39:01,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 17:39:01,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 17:39:01,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 17:39:01,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 17:39:01,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 17:39:01,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 17:39:01,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 17:39:01,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 17:39:01,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 17:39:01,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 17:39:01,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 17:39:01,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 17:39:01,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 17:39:01,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 17:39:01,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 17:39:01,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 17:39:01,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 17:39:01,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 17:39:01,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 17:39:01,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 17:39:01,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 17:39:01,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 17:39:01,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 17:39:01,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 17:39:01,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 17:39:01,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 17:39:01,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 17:39:01,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 17:39:01,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 17:39:01,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 17:39:01,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 17:39:01,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 17:39:01,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 17:39:01,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 17:39:01,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 17:39:01,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 17:39:01,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 17:39:01,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 17:39:01,328 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 17:39:01,328 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 17:39:01,328 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 17:39:01,328 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 17:39:01,328 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 17:39:01,328 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 17:39:01,328 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 17:39:01,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 17:39:01,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 17:39:01,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 17:39:01,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 17:39:01,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 17:39:01,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 17:39:01,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 17:39:01,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 17:39:01,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 17:39:01,338 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 17:39:01,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 17:39:01,338 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 17:39:01,339 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 17:39:01,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 17:39:01,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 17:39:01,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 17:39:01,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 17:39:01,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 17:39:01,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 17:39:01,340 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 17:39:01,342 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbb28681f649db641abcf0a1b656085d04f9cc91 [2021-08-27 17:39:01,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 17:39:01,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 17:39:01,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 17:39:01,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 17:39:01,628 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 17:39:01,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i [2021-08-27 17:39:01,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bbbd9d1e/c8038865d75b44b09fc150e962dadfcc/FLAG63e3482ce [2021-08-27 17:39:02,007 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 17:39:02,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i [2021-08-27 17:39:02,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bbbd9d1e/c8038865d75b44b09fc150e962dadfcc/FLAG63e3482ce [2021-08-27 17:39:02,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bbbd9d1e/c8038865d75b44b09fc150e962dadfcc [2021-08-27 17:39:02,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 17:39:02,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 17:39:02,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 17:39:02,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 17:39:02,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 17:39:02,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4195d25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02, skipping insertion in model container [2021-08-27 17:39:02,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 17:39:02,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 17:39:02,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:39:02,632 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 17:39:02,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:39:02,715 INFO L208 MainTranslator]: Completed translation [2021-08-27 17:39:02,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02 WrapperNode [2021-08-27 17:39:02,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 17:39:02,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 17:39:02,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 17:39:02,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 17:39:02,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 17:39:02,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 17:39:02,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 17:39:02,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 17:39:02,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 17:39:02,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 17:39:02,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 17:39:02,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 17:39:02,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (1/1) ... [2021-08-27 17:39:02,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:02,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:02,822 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) [2021-08-27 17:39:02,824 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 [2021-08-27 17:39:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 17:39:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 17:39:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 17:39:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 17:39:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 17:39:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 17:39:03,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 17:39:03,212 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-27 17:39:03,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:39:03 BoogieIcfgContainer [2021-08-27 17:39:03,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 17:39:03,215 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 17:39:03,216 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 17:39:03,218 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 17:39:03,218 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:39:03,218 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 05:39:02" (1/3) ... [2021-08-27 17:39:03,219 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f56ad13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:39:03, skipping insertion in model container [2021-08-27 17:39:03,219 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:39:03,220 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:39:02" (2/3) ... [2021-08-27 17:39:03,220 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f56ad13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:39:03, skipping insertion in model container [2021-08-27 17:39:03,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:39:03,220 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:39:03" (3/3) ... [2021-08-27 17:39:03,227 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrstr-alloca-2.i [2021-08-27 17:39:03,264 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 17:39:03,264 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 17:39:03,265 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 17:39:03,265 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 17:39:03,265 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 17:39:03,265 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 17:39:03,265 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 17:39:03,265 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 17:39:03,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 37 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 36 states have internal predecessors, (55), 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) [2021-08-27 17:39:03,294 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 21 [2021-08-27 17:39:03,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:39:03,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:39:03,298 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 17:39:03,298 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 17:39:03,298 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 17:39:03,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 37 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 36 states have internal predecessors, (55), 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) [2021-08-27 17:39:03,303 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 21 [2021-08-27 17:39:03,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:39:03,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:39:03,303 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 17:39:03,304 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 17:39:03,309 INFO L791 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 32#L555true assume !(main_~length1~0 < 1); 29#L555-2true assume !(main_~length2~0 < 1); 7#L558-1true call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 36#L564-3true [2021-08-27 17:39:03,309 INFO L793 eck$LassoCheckResult]: Loop: 36#L564-3true assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 24#L564-2true main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 36#L564-3true [2021-08-27 17:39:03,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:03,314 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-08-27 17:39:03,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:03,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354213897] [2021-08-27 17:39:03,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:03,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:03,390 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:03,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:03,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:03,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-08-27 17:39:03,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:03,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146141483] [2021-08-27 17:39:03,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:03,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:03,420 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:03,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:03,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-08-27 17:39:03,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:03,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693903554] [2021-08-27 17:39:03,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:03,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:03,448 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:03,465 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:03,805 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:39:03,806 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:39:03,806 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:39:03,806 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:39:03,806 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:39:03,806 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:03,806 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:39:03,806 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:39:03,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration1_Lasso [2021-08-27 17:39:03,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:39:03,807 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:39:03,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:03,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:04,171 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:39:04,173 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:39:04,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:04,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:04,176 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) [2021-08-27 17:39:04,180 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 [2021-08-27 17:39:04,187 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 [2021-08-27 17:39:04,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:04,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:04,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:04,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:04,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:04,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:04,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:04,214 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:04,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-27 17:39:04,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:04,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:04,234 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) [2021-08-27 17:39:04,235 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 [2021-08-27 17:39:04,237 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 [2021-08-27 17:39:04,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:04,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:04,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:04,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:04,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:04,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:04,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:04,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:04,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 17:39:04,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:04,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:04,266 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) [2021-08-27 17:39:04,267 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 [2021-08-27 17:39:04,268 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 [2021-08-27 17:39:04,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:04,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:04,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:04,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:04,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:04,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:04,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:04,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:04,291 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 [2021-08-27 17:39:04,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:04,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:04,293 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) [2021-08-27 17:39:04,293 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 [2021-08-27 17:39:04,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:39:04,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:04,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:04,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:04,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:04,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:39:04,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:39:04,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:04,341 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 [2021-08-27 17:39:04,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:04,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:04,342 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) [2021-08-27 17:39:04,347 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 [2021-08-27 17:39:04,348 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 [2021-08-27 17:39:04,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:04,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:04,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:04,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:04,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:39:04,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:39:04,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:39:04,421 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-08-27 17:39:04,421 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-08-27 17:39:04,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:04,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:04,433 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) [2021-08-27 17:39:04,480 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 [2021-08-27 17:39:04,480 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:39:04,514 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 17:39:04,514 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:39:04,514 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_1, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_1 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_1 - 1*ULTIMATE.start_main_~length1~0 >= 0] [2021-08-27 17:39:04,537 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 [2021-08-27 17:39:04,550 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2021-08-27 17:39:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:04,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 17:39:04,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:39:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:04,645 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 17:39:04,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:39:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:39:04,702 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 [2021-08-27 17:39:04,706 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 [2021-08-27 17:39:04,709 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 37 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 36 states have internal predecessors, (55), 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) [2021-08-27 17:39:04,778 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 37 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 36 states have internal predecessors, (55), 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 96 states and 142 transitions. Complement of second has 8 states. [2021-08-27 17:39:04,779 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 [2021-08-27 17:39:04,780 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) [2021-08-27 17:39:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 96 transitions. [2021-08-27 17:39:04,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 96 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 17:39:04,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:39:04,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 96 transitions. Stem has 7 letters. Loop has 2 letters. [2021-08-27 17:39:04,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:39:04,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 96 transitions. Stem has 5 letters. Loop has 4 letters. [2021-08-27 17:39:04,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:39:04,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 142 transitions. [2021-08-27 17:39:04,786 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2021-08-27 17:39:04,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 32 states and 43 transitions. [2021-08-27 17:39:04,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-08-27 17:39:04,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-08-27 17:39:04,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2021-08-27 17:39:04,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:39:04,794 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-08-27 17:39:04,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2021-08-27 17:39:04,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-08-27 17:39:04,808 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) [2021-08-27 17:39:04,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2021-08-27 17:39:04,809 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-08-27 17:39:04,809 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-08-27 17:39:04,810 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 17:39:04,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2021-08-27 17:39:04,810 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2021-08-27 17:39:04,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:39:04,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:39:04,811 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:39:04,811 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 17:39:04,811 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 227#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 228#L555 assume !(main_~length1~0 < 1); 245#L555-2 assume !(main_~length2~0 < 1); 223#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 224#L564-3 assume !(main_~i~0 < main_~length1~0); 244#L564-4 main_~i~1 := 0; 235#L568-3 [2021-08-27 17:39:04,811 INFO L793 eck$LassoCheckResult]: Loop: 235#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 237#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 235#L568-3 [2021-08-27 17:39:04,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:04,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-08-27 17:39:04,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:04,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580831654] [2021-08-27 17:39:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:04,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:04,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:39:04,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:39:04,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580831654] [2021-08-27 17:39:04,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580831654] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:39:04,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:39:04,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 17:39:04,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513594271] [2021-08-27 17:39:04,872 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:39:04,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:04,872 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-08-27 17:39:04,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:04,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423857069] [2021-08-27 17:39:04,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:04,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:04,877 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:04,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:04,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:39:04,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 17:39:04,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 17:39:04,933 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-08-27 17:39:04,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:39:04,952 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2021-08-27 17:39:04,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 17:39:04,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-08-27 17:39:04,953 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2021-08-27 17:39:04,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 43 transitions. [2021-08-27 17:39:04,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-08-27 17:39:04,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-08-27 17:39:04,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 43 transitions. [2021-08-27 17:39:04,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:39:04,955 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-08-27 17:39:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 43 transitions. [2021-08-27 17:39:04,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-08-27 17:39:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.3125) internal successors, (42), 31 states have internal predecessors, (42), 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) [2021-08-27 17:39:04,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2021-08-27 17:39:04,957 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2021-08-27 17:39:04,957 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2021-08-27 17:39:04,957 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 17:39:04,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 42 transitions. [2021-08-27 17:39:04,957 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2021-08-27 17:39:04,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:39:04,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:39:04,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:39:04,958 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 17:39:04,958 INFO L791 eck$LassoCheckResult]: Stem: 315#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 299#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 300#L555 assume !(main_~length1~0 < 1); 317#L555-2 assume !(main_~length2~0 < 1); 293#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 294#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 312#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 313#L564-3 assume !(main_~i~0 < main_~length1~0); 316#L564-4 main_~i~1 := 0; 307#L568-3 [2021-08-27 17:39:04,958 INFO L793 eck$LassoCheckResult]: Loop: 307#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 309#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 307#L568-3 [2021-08-27 17:39:04,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:04,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1298440016, now seen corresponding path program 1 times [2021-08-27 17:39:04,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:04,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129198237] [2021-08-27 17:39:04,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:04,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:04,967 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:04,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:04,980 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 2 times [2021-08-27 17:39:04,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:04,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646137780] [2021-08-27 17:39:04,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:04,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:04,984 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:04,987 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:04,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:04,988 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626574, now seen corresponding path program 1 times [2021-08-27 17:39:04,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:04,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805171183] [2021-08-27 17:39:04,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:04,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:04,996 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:05,022 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:05,345 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:39:05,346 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:39:05,346 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:39:05,346 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:39:05,347 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:39:05,347 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:05,347 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:39:05,347 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:39:05,347 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration3_Lasso [2021-08-27 17:39:05,347 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:39:05,347 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:39:05,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:39:05,770 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:39:05,771 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:39:05,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:05,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:05,773 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) [2021-08-27 17:39:05,786 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 [2021-08-27 17:39:05,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:05,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:05,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:05,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:05,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:05,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:05,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:05,797 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 [2021-08-27 17:39:05,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:05,822 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 [2021-08-27 17:39:05,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:05,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:05,823 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) [2021-08-27 17:39:05,825 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 [2021-08-27 17:39:05,826 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 [2021-08-27 17:39:05,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:05,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:05,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:05,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:05,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:05,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:05,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:05,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:05,866 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 [2021-08-27 17:39:05,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:05,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:05,867 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) [2021-08-27 17:39:05,868 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 [2021-08-27 17:39:05,869 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 [2021-08-27 17:39:05,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:05,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:05,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:05,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:05,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:05,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:05,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:05,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:05,895 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 [2021-08-27 17:39:05,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:05,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:05,896 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) [2021-08-27 17:39:05,899 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 [2021-08-27 17:39:05,903 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 [2021-08-27 17:39:05,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:05,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:05,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:05,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:05,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:05,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:05,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:05,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:05,927 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 [2021-08-27 17:39:05,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:05,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:05,928 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) [2021-08-27 17:39:05,929 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 [2021-08-27 17:39:05,930 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 [2021-08-27 17:39:05,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:05,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:05,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:05,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:05,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:39:05,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:39:05,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:05,955 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 [2021-08-27 17:39:05,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:05,956 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) [2021-08-27 17:39:05,957 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 [2021-08-27 17:39:05,959 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 [2021-08-27 17:39:05,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:05,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:05,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:05,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:05,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:05,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:05,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:05,968 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:05,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-08-27 17:39:05,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:05,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:05,984 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) [2021-08-27 17:39:05,984 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 [2021-08-27 17:39:05,986 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 [2021-08-27 17:39:05,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:05,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:05,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:05,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:05,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:05,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:05,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:05,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:06,010 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 [2021-08-27 17:39:06,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:06,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:06,011 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) [2021-08-27 17:39:06,012 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 [2021-08-27 17:39:06,013 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 [2021-08-27 17:39:06,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:06,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:06,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:06,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:06,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:39:06,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:39:06,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:06,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-08-27 17:39:06,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:06,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:06,049 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) [2021-08-27 17:39:06,049 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 [2021-08-27 17:39:06,051 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 [2021-08-27 17:39:06,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:06,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:06,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:06,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:06,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:39:06,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:39:06,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:06,086 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 [2021-08-27 17:39:06,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:06,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:06,087 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) [2021-08-27 17:39:06,099 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 [2021-08-27 17:39:06,099 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 [2021-08-27 17:39:06,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:06,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:06,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:06,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:06,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:06,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:06,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:06,120 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:06,136 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 [2021-08-27 17:39:06,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:06,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:06,141 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) [2021-08-27 17:39:06,142 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 [2021-08-27 17:39:06,143 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 [2021-08-27 17:39:06,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:06,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:39:06,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:06,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:06,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:06,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:39:06,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:39:06,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:39:06,195 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 [2021-08-27 17:39:06,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:06,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:06,196 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) [2021-08-27 17:39:06,208 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 [2021-08-27 17:39:06,208 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 [2021-08-27 17:39:06,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:39:06,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:39:06,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:39:06,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:39:06,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:39:06,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:39:06,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:39:06,251 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-08-27 17:39:06,252 INFO L444 ModelExtractionUtils]: 21 out of 34 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-08-27 17:39:06,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:39:06,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:06,253 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) [2021-08-27 17:39:06,263 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:39:06,272 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 [2021-08-27 17:39:06,279 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 17:39:06,279 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:39:06,279 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2021-08-27 17:39:06,295 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 [2021-08-27 17:39:06,305 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-08-27 17:39:06,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:06,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 17:39:06,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:39:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:06,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 17:39:06,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:39:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:39:06,373 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 [2021-08-27 17:39:06,373 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-08-27 17:39:06,387 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 55 states and 75 transitions. Complement of second has 6 states. [2021-08-27 17:39:06,392 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 [2021-08-27 17:39:06,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-08-27 17:39:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2021-08-27 17:39:06,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 9 letters. Loop has 2 letters. [2021-08-27 17:39:06,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:39:06,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 11 letters. Loop has 2 letters. [2021-08-27 17:39:06,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:39:06,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 9 letters. Loop has 4 letters. [2021-08-27 17:39:06,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:39:06,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 75 transitions. [2021-08-27 17:39:06,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-27 17:39:06,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 33 states and 44 transitions. [2021-08-27 17:39:06,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-08-27 17:39:06,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-08-27 17:39:06,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2021-08-27 17:39:06,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:39:06,400 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-08-27 17:39:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2021-08-27 17:39:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-08-27 17:39:06,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 32 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) [2021-08-27 17:39:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2021-08-27 17:39:06,403 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-08-27 17:39:06,403 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-08-27 17:39:06,404 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 17:39:06,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 44 transitions. [2021-08-27 17:39:06,404 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-27 17:39:06,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:39:06,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:39:06,404 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:39:06,404 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 17:39:06,405 INFO L791 eck$LassoCheckResult]: Stem: 487#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 470#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 471#L555 assume !(main_~length1~0 < 1); 489#L555-2 assume !(main_~length2~0 < 1); 464#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 465#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 484#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 485#L564-3 assume !(main_~i~0 < main_~length1~0); 488#L564-4 main_~i~1 := 0; 478#L568-3 assume !(main_~i~1 < main_~length2~0); 479#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 486#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 476#L518-4 [2021-08-27 17:39:06,405 INFO L793 eck$LassoCheckResult]: Loop: 476#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 477#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 490#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 476#L518-4 [2021-08-27 17:39:06,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:06,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1351083894, now seen corresponding path program 1 times [2021-08-27 17:39:06,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:06,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240946730] [2021-08-27 17:39:06,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:06,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 17:39:06,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:39:06,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240946730] [2021-08-27 17:39:06,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240946730] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:39:06,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:39:06,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 17:39:06,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807272910] [2021-08-27 17:39:06,454 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:39:06,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:06,454 INFO L82 PathProgramCache]: Analyzing trace with hash 79603, now seen corresponding path program 1 times [2021-08-27 17:39:06,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:06,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374203830] [2021-08-27 17:39:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:06,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:06,459 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:06,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:06,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:39:06,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 17:39:06,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 17:39:06,499 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-08-27 17:39:06,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:39:06,513 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2021-08-27 17:39:06,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 17:39:06,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2021-08-27 17:39:06,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-27 17:39:06,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 44 transitions. [2021-08-27 17:39:06,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-08-27 17:39:06,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-08-27 17:39:06,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 44 transitions. [2021-08-27 17:39:06,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:39:06,515 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-08-27 17:39:06,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 44 transitions. [2021-08-27 17:39:06,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-08-27 17:39:06,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.303030303030303) internal successors, (43), 32 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) [2021-08-27 17:39:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-08-27 17:39:06,516 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-08-27 17:39:06,516 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-08-27 17:39:06,516 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 17:39:06,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 43 transitions. [2021-08-27 17:39:06,517 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-27 17:39:06,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:39:06,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:39:06,517 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:39:06,517 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 17:39:06,518 INFO L791 eck$LassoCheckResult]: Stem: 561#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 544#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 545#L555 assume !(main_~length1~0 < 1); 563#L555-2 assume !(main_~length2~0 < 1); 540#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 541#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 558#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 559#L564-3 assume !(main_~i~0 < main_~length1~0); 562#L564-4 main_~i~1 := 0; 553#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 554#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 555#L568-3 assume !(main_~i~1 < main_~length2~0); 556#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 560#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 550#L518-4 [2021-08-27 17:39:06,518 INFO L793 eck$LassoCheckResult]: Loop: 550#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 551#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 564#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 550#L518-4 [2021-08-27 17:39:06,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:06,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1313217428, now seen corresponding path program 1 times [2021-08-27 17:39:06,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:06,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394337278] [2021-08-27 17:39:06,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:06,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:06,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-08-27 17:39:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 17:39:06,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:39:06,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394337278] [2021-08-27 17:39:06,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394337278] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:39:06,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824368336] [2021-08-27 17:39:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:06,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 17:39:06,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:06,701 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 17:39:06,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-08-27 17:39:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:06,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 17:39:06,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:39:06,945 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 0 case distinctions, treesize of input 40 treesize of output 39 [2021-08-27 17:39:06,958 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 17:39:06,959 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 39 treesize of output 43 [2021-08-27 17:39:06,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 17:39:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 17:39:07,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824368336] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:39:07,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 17:39:07,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-08-27 17:39:07,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765212494] [2021-08-27 17:39:07,002 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:39:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:07,003 INFO L82 PathProgramCache]: Analyzing trace with hash 79603, now seen corresponding path program 2 times [2021-08-27 17:39:07,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:07,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887195349] [2021-08-27 17:39:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:07,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:07,009 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:07,015 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:07,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:39:07,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 17:39:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-08-27 17:39:07,042 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. cyclomatic complexity: 14 Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 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) [2021-08-27 17:39:07,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:39:07,151 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2021-08-27 17:39:07,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 17:39:07,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2021-08-27 17:39:07,153 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-27 17:39:07,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 36 states and 46 transitions. [2021-08-27 17:39:07,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-08-27 17:39:07,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-08-27 17:39:07,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-08-27 17:39:07,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:39:07,154 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-08-27 17:39:07,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-08-27 17:39:07,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-08-27 17:39:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 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) [2021-08-27 17:39:07,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-08-27 17:39:07,156 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-08-27 17:39:07,156 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-08-27 17:39:07,156 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 17:39:07,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2021-08-27 17:39:07,156 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-27 17:39:07,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:39:07,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:39:07,157 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:39:07,157 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 17:39:07,157 INFO L791 eck$LassoCheckResult]: Stem: 695#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 677#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 678#L555 assume !(main_~length1~0 < 1); 697#L555-2 assume !(main_~length2~0 < 1); 673#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 674#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 691#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 692#L564-3 assume !(main_~i~0 < main_~length1~0); 696#L564-4 main_~i~1 := 0; 685#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 686#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 687#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 688#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 699#L568-3 assume !(main_~i~1 < main_~length2~0); 693#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 694#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 683#L518-4 [2021-08-27 17:39:07,157 INFO L793 eck$LassoCheckResult]: Loop: 683#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 684#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 698#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 683#L518-4 [2021-08-27 17:39:07,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:07,158 INFO L82 PathProgramCache]: Analyzing trace with hash -716718030, now seen corresponding path program 2 times [2021-08-27 17:39:07,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:07,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002790272] [2021-08-27 17:39:07,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:07,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:07,167 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:07,179 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:07,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:07,179 INFO L82 PathProgramCache]: Analyzing trace with hash 79603, now seen corresponding path program 3 times [2021-08-27 17:39:07,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:07,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601441525] [2021-08-27 17:39:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:07,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:07,182 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:39:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:39:07,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:39:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:39:07,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1464353502, now seen corresponding path program 1 times [2021-08-27 17:39:07,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:39:07,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655733918] [2021-08-27 17:39:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:07,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:39:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:39:07,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:39:07,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655733918] [2021-08-27 17:39:07,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655733918] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:39:07,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976592639] [2021-08-27 17:39:07,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:39:07,467 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 17:39:07,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:39:07,468 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) [2021-08-27 17:39:07,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-08-27 17:39:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:39:07,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 37 conjunts are in the unsatisfiable core [2021-08-27 17:39:07,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:39:07,671 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-08-27 17:39:07,672 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 27 [2021-08-27 17:39:21,608 WARN L207 SmtUtils]: Spent 10.42 s on a formula simplification that was a NOOP. DAG size: 26 [2021-08-27 17:39:35,825 WARN L207 SmtUtils]: Spent 12.02 s on a formula simplification that was a NOOP. DAG size: 26 [2021-08-27 17:39:35,853 INFO L354 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2021-08-27 17:39:35,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 19 [2021-08-27 17:39:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 17:39:35,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976592639] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:39:35,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 17:39:35,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2021-08-27 17:39:35,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734675450] [2021-08-27 17:39:35,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:39:35,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 17:39:35,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=342, Unknown=2, NotChecked=0, Total=420 [2021-08-27 17:39:35,897 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. cyclomatic complexity: 14 Second operand has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 21 states have internal predecessors, (34), 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) [2021-08-27 17:40:00,078 WARN L207 SmtUtils]: Spent 23.92 s on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2021-08-27 17:40:24,142 WARN L207 SmtUtils]: Spent 24.04 s on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2021-08-27 17:40:48,216 WARN L207 SmtUtils]: Spent 24.04 s on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2021-08-27 17:41:00,295 WARN L207 SmtUtils]: Spent 12.05 s on a formula simplification that was a NOOP. DAG size: 31 [2021-08-27 17:41:12,344 WARN L207 SmtUtils]: Spent 12.02 s on a formula simplification that was a NOOP. DAG size: 39 [2021-08-27 17:41:24,406 WARN L207 SmtUtils]: Spent 12.03 s on a formula simplification that was a NOOP. DAG size: 41 [2021-08-27 17:41:24,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:41:24,481 INFO L93 Difference]: Finished difference Result 111 states and 141 transitions. [2021-08-27 17:41:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-27 17:41:24,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 141 transitions. [2021-08-27 17:41:24,482 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 62 [2021-08-27 17:41:24,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 111 states and 141 transitions. [2021-08-27 17:41:24,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-08-27 17:41:24,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-08-27 17:41:24,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 141 transitions. [2021-08-27 17:41:24,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:41:24,483 INFO L681 BuchiCegarLoop]: Abstraction has 111 states and 141 transitions. [2021-08-27 17:41:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 141 transitions. [2021-08-27 17:41:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 41. [2021-08-27 17:41:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 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) [2021-08-27 17:41:24,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2021-08-27 17:41:24,486 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-08-27 17:41:24,486 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-08-27 17:41:24,486 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-27 17:41:24,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 52 transitions. [2021-08-27 17:41:24,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-27 17:41:24,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:24,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:24,486 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:24,486 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 17:41:24,486 INFO L791 eck$LassoCheckResult]: Stem: 955#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 937#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 938#L555 assume !(main_~length1~0 < 1); 957#L555-2 assume !(main_~length2~0 < 1); 931#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 932#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 951#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 952#L564-3 assume !(main_~i~0 < main_~length1~0); 956#L564-4 main_~i~1 := 0; 945#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 946#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 947#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 948#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 965#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 964#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 963#L568-3 assume !(main_~i~1 < main_~length2~0); 962#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 961#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 959#L518-4 [2021-08-27 17:41:24,487 INFO L793 eck$LassoCheckResult]: Loop: 959#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 960#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 958#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 959#L518-4 [2021-08-27 17:41:24,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:24,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1569540784, now seen corresponding path program 3 times [2021-08-27 17:41:24,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:24,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738440536] [2021-08-27 17:41:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:24,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:24,504 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:24,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:24,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:24,526 INFO L82 PathProgramCache]: Analyzing trace with hash 79603, now seen corresponding path program 4 times [2021-08-27 17:41:24,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:24,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052009735] [2021-08-27 17:41:24,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:24,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:24,530 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:24,533 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:24,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:24,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1119505220, now seen corresponding path program 2 times [2021-08-27 17:41:24,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:24,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285917362] [2021-08-27 17:41:24,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:24,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:24,557 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:24,581 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:26,419 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:41:26,419 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:41:26,419 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:41:26,419 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:41:26,419 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:41:26,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:26,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:41:26,419 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:41:26,419 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration7_Lasso [2021-08-27 17:41:26,419 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:41:26,419 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:41:26,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:26,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:27,467 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:41:27,468 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:41:27,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,478 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) [2021-08-27 17:41:27,479 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 [2021-08-27 17:41:27,480 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 [2021-08-27 17:41:27,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,503 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 [2021-08-27 17:41:27,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,505 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) [2021-08-27 17:41:27,505 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 [2021-08-27 17:41:27,506 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 [2021-08-27 17:41:27,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:27,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,534 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) [2021-08-27 17:41:27,535 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 [2021-08-27 17:41:27,536 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 [2021-08-27 17:41:27,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:27,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:27,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,562 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 [2021-08-27 17:41:27,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,563 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) [2021-08-27 17:41:27,564 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 [2021-08-27 17:41:27,565 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 [2021-08-27 17:41:27,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,588 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 [2021-08-27 17:41:27,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,590 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) [2021-08-27 17:41:27,590 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 [2021-08-27 17:41:27,592 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 [2021-08-27 17:41:27,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-08-27 17:41:27,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,614 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) [2021-08-27 17:41:27,616 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 [2021-08-27 17:41:27,616 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 [2021-08-27 17:41:27,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,638 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 [2021-08-27 17:41:27,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,639 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) [2021-08-27 17:41:27,640 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 [2021-08-27 17:41:27,641 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 [2021-08-27 17:41:27,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:27,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,666 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) [2021-08-27 17:41:27,667 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 [2021-08-27 17:41:27,668 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 [2021-08-27 17:41:27,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,675 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:27,675 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:27,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:27,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,694 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) [2021-08-27 17:41:27,694 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 [2021-08-27 17:41:27,695 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 [2021-08-27 17:41:27,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:27,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,720 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) [2021-08-27 17:41:27,720 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 [2021-08-27 17:41:27,722 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 [2021-08-27 17:41:27,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,746 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 [2021-08-27 17:41:27,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,747 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) [2021-08-27 17:41:27,747 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 [2021-08-27 17:41:27,748 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 [2021-08-27 17:41:27,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:27,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,778 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) [2021-08-27 17:41:27,781 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 [2021-08-27 17:41:27,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,791 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 [2021-08-27 17:41:27,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:27,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,820 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) [2021-08-27 17:41:27,825 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 [2021-08-27 17:41:27,830 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 [2021-08-27 17:41:27,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,847 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 [2021-08-27 17:41:27,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,848 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) [2021-08-27 17:41:27,852 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 [2021-08-27 17:41:27,852 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 [2021-08-27 17:41:27,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:27,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:27,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:27,859 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:27,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:27,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,875 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) [2021-08-27 17:41:27,876 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 [2021-08-27 17:41:27,877 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 [2021-08-27 17:41:27,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:27,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:27,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:27,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:27,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:27,899 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:27,919 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:41:27,958 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-08-27 17:41:27,958 INFO L444 ModelExtractionUtils]: 14 out of 64 variables were initially zero. Simplification set additionally 47 variables to zero. [2021-08-27 17:41:27,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:27,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:27,970 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) [2021-08-27 17:41:27,977 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 [2021-08-27 17:41:27,977 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:41:27,989 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 17:41:27,990 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:41:27,990 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2, ULTIMATE.start_cstrlen_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2 - 1*ULTIMATE.start_cstrlen_~s~0.offset Supporting invariants [] [2021-08-27 17:41:28,006 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 [2021-08-27 17:41:28,059 INFO L297 tatePredicateManager]: 21 out of 22 supporting invariants were superfluous and have been removed [2021-08-27 17:41:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:28,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 17:41:28,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:28,171 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 17:41:28,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:41:28,210 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-27 17:41:28,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-08-27 17:41:28,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) Result 61 states and 80 transitions. Complement of second has 5 states. [2021-08-27 17:41:28,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 17:41:28,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-08-27 17:41:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2021-08-27 17:41:28,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 18 letters. Loop has 3 letters. [2021-08-27 17:41:28,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:28,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 21 letters. Loop has 3 letters. [2021-08-27 17:41:28,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:28,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 18 letters. Loop has 6 letters. [2021-08-27 17:41:28,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:28,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 80 transitions. [2021-08-27 17:41:28,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-08-27 17:41:28,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 43 states and 55 transitions. [2021-08-27 17:41:28,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-08-27 17:41:28,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-08-27 17:41:28,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 55 transitions. [2021-08-27 17:41:28,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:28,280 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-08-27 17:41:28,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 55 transitions. [2021-08-27 17:41:28,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-08-27 17:41:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 41 states have internal predecessors, (54), 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) [2021-08-27 17:41:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2021-08-27 17:41:28,285 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 54 transitions. [2021-08-27 17:41:28,285 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 54 transitions. [2021-08-27 17:41:28,285 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-27 17:41:28,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 54 transitions. [2021-08-27 17:41:28,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-08-27 17:41:28,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:28,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:28,286 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:28,286 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:28,286 INFO L791 eck$LassoCheckResult]: Stem: 1239#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1218#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 1219#L555 assume !(main_~length1~0 < 1); 1241#L555-2 assume !(main_~length2~0 < 1); 1214#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 1215#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 1235#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 1236#L564-3 assume !(main_~i~0 < main_~length1~0); 1240#L564-4 main_~i~1 := 0; 1228#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1229#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1247#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1246#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1245#L568-3 assume !(main_~i~1 < main_~length2~0); 1237#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 1238#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 1224#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 1225#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 1212#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 1213#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 1220#L542-4 [2021-08-27 17:41:28,286 INFO L793 eck$LassoCheckResult]: Loop: 1220#L542-4 goto; 1233#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 1216#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 1217#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 1234#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 1206#L525 assume 0 == cstrncmp_~n % 4294967296;cstrncmp_#res := 0; 1207#L533 cstrstr_#t~ret16 := cstrncmp_#res; 1222#L542-2 assume !!(0 != cstrstr_#t~ret16);havoc cstrstr_#t~ret16; 1220#L542-4 [2021-08-27 17:41:28,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:28,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1849679959, now seen corresponding path program 1 times [2021-08-27 17:41:28,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:28,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521939877] [2021-08-27 17:41:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:28,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:28,295 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:28,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:28,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:28,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1079765744, now seen corresponding path program 1 times [2021-08-27 17:41:28,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:28,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514407778] [2021-08-27 17:41:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:28,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:28,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:41:28,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:41:28,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514407778] [2021-08-27 17:41:28,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514407778] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:41:28,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:41:28,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 17:41:28,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407527200] [2021-08-27 17:41:28,321 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 17:41:28,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:41:28,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 17:41:28,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 17:41:28,321 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. cyclomatic complexity: 16 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-08-27 17:41:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:41:28,337 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2021-08-27 17:41:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 17:41:28,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2021-08-27 17:41:28,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-08-27 17:41:28,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 50 transitions. [2021-08-27 17:41:28,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-08-27 17:41:28,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-08-27 17:41:28,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 50 transitions. [2021-08-27 17:41:28,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:28,339 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 50 transitions. [2021-08-27 17:41:28,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 50 transitions. [2021-08-27 17:41:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-27 17:41:28,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 40 states have internal predecessors, (50), 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) [2021-08-27 17:41:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2021-08-27 17:41:28,343 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 50 transitions. [2021-08-27 17:41:28,343 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 50 transitions. [2021-08-27 17:41:28,343 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-27 17:41:28,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 50 transitions. [2021-08-27 17:41:28,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-08-27 17:41:28,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:28,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:28,345 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:28,345 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:28,345 INFO L791 eck$LassoCheckResult]: Stem: 1332#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1311#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 1312#L555 assume !(main_~length1~0 < 1); 1334#L555-2 assume !(main_~length2~0 < 1); 1305#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 1306#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 1328#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 1329#L564-3 assume !(main_~i~0 < main_~length1~0); 1333#L564-4 main_~i~1 := 0; 1323#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1324#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1325#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1326#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1341#L568-3 assume !(main_~i~1 < main_~length2~0); 1330#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 1331#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 1318#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 1319#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 1307#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 1308#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 1313#L542-4 [2021-08-27 17:41:28,349 INFO L793 eck$LassoCheckResult]: Loop: 1313#L542-4 goto; 1322#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 1309#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 1310#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 1327#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 1301#L525 assume !(0 == cstrncmp_~n % 4294967296); 1302#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 1316#L528 assume cstrncmp_#t~mem6 != cstrncmp_#t~mem7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;call cstrncmp_#t~mem9 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, 1);cstrncmp_#res := cstrncmp_#t~mem9 % 256 - cstrncmp_#t~mem10 % 256;havoc cstrncmp_#t~mem9;havoc cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset;havoc cstrncmp_#t~mem10; 1317#L533 cstrstr_#t~ret16 := cstrncmp_#res; 1315#L542-2 assume !!(0 != cstrstr_#t~ret16);havoc cstrstr_#t~ret16; 1313#L542-4 [2021-08-27 17:41:28,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:28,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1849679959, now seen corresponding path program 2 times [2021-08-27 17:41:28,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:28,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876180571] [2021-08-27 17:41:28,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:28,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:28,357 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:28,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:28,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:28,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1728347221, now seen corresponding path program 1 times [2021-08-27 17:41:28,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:28,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954420272] [2021-08-27 17:41:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:28,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:28,378 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:28,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:28,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:28,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1941989675, now seen corresponding path program 1 times [2021-08-27 17:41:28,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:28,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421487627] [2021-08-27 17:41:28,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:28,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:28,417 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 [2021-08-27 17:41:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 17:41:28,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:41:28,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421487627] [2021-08-27 17:41:28,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421487627] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:28,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113173473] [2021-08-27 17:41:28,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:28,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 17:41:28,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:28,493 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 17:41:28,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-08-27 17:41:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:28,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-27 17:41:28,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:28,663 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 17:41:28,663 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 18 treesize of output 19 [2021-08-27 17:41:28,667 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 15 treesize of output 13 [2021-08-27 17:41:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 17:41:28,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113173473] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:28,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 17:41:28,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-27 17:41:28,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108246815] [2021-08-27 17:41:29,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:41:29,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 17:41:29,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-08-27 17:41:29,202 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. cyclomatic complexity: 13 Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 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) [2021-08-27 17:41:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:41:29,303 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2021-08-27 17:41:29,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 17:41:29,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 85 transitions. [2021-08-27 17:41:29,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-08-27 17:41:29,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 44 states and 53 transitions. [2021-08-27 17:41:29,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-08-27 17:41:29,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-08-27 17:41:29,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 53 transitions. [2021-08-27 17:41:29,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:29,306 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 53 transitions. [2021-08-27 17:41:29,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 53 transitions. [2021-08-27 17:41:29,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2021-08-27 17:41:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 42 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) [2021-08-27 17:41:29,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2021-08-27 17:41:29,308 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-08-27 17:41:29,308 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-08-27 17:41:29,308 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-27 17:41:29,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 52 transitions. [2021-08-27 17:41:29,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-08-27 17:41:29,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:29,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:29,309 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:29,309 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:29,309 INFO L791 eck$LassoCheckResult]: Stem: 1557#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1536#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 1537#L555 assume !(main_~length1~0 < 1); 1559#L555-2 assume !(main_~length2~0 < 1); 1532#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 1533#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 1554#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 1555#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 1562#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 1568#L564-3 assume !(main_~i~0 < main_~length1~0); 1558#L564-4 main_~i~1 := 0; 1547#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1548#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1567#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1566#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1565#L568-3 assume !(main_~i~1 < main_~length2~0); 1564#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 1560#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 1543#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 1544#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 1530#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 1531#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 1538#L542-4 [2021-08-27 17:41:29,310 INFO L793 eck$LassoCheckResult]: Loop: 1538#L542-4 goto; 1552#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 1534#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 1535#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 1553#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 1526#L525 assume !(0 == cstrncmp_~n % 4294967296); 1527#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 1541#L528 assume cstrncmp_#t~mem6 != cstrncmp_#t~mem7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;call cstrncmp_#t~mem9 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, 1);cstrncmp_#res := cstrncmp_#t~mem9 % 256 - cstrncmp_#t~mem10 % 256;havoc cstrncmp_#t~mem9;havoc cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset;havoc cstrncmp_#t~mem10; 1542#L533 cstrstr_#t~ret16 := cstrncmp_#res; 1540#L542-2 assume !!(0 != cstrstr_#t~ret16);havoc cstrstr_#t~ret16; 1538#L542-4 [2021-08-27 17:41:29,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:29,310 INFO L82 PathProgramCache]: Analyzing trace with hash 195946165, now seen corresponding path program 3 times [2021-08-27 17:41:29,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:29,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198467213] [2021-08-27 17:41:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:29,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,319 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,337 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:29,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:29,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1728347221, now seen corresponding path program 2 times [2021-08-27 17:41:29,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:29,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706383204] [2021-08-27 17:41:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:29,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,345 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:29,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:29,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1478979063, now seen corresponding path program 2 times [2021-08-27 17:41:29,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:29,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386923414] [2021-08-27 17:41:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:29,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-27 17:41:29,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:41:29,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386923414] [2021-08-27 17:41:29,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386923414] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:41:29,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:41:29,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 17:41:29,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347770076] [2021-08-27 17:41:29,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:41:29,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 17:41:29,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-27 17:41:29,819 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. cyclomatic complexity: 13 Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2021-08-27 17:41:29,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:41:29,869 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2021-08-27 17:41:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 17:41:29,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 63 transitions. [2021-08-27 17:41:29,870 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2021-08-27 17:41:29,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 52 states and 61 transitions. [2021-08-27 17:41:29,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-08-27 17:41:29,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-08-27 17:41:29,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 61 transitions. [2021-08-27 17:41:29,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:29,875 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 61 transitions. [2021-08-27 17:41:29,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 61 transitions. [2021-08-27 17:41:29,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2021-08-27 17:41:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.18) internal successors, (59), 49 states have internal predecessors, (59), 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) [2021-08-27 17:41:29,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2021-08-27 17:41:29,878 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 59 transitions. [2021-08-27 17:41:29,878 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 59 transitions. [2021-08-27 17:41:29,878 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-08-27 17:41:29,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 59 transitions. [2021-08-27 17:41:29,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2021-08-27 17:41:29,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:29,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:29,879 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] [2021-08-27 17:41:29,879 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 17:41:29,879 INFO L791 eck$LassoCheckResult]: Stem: 1672#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1650#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 1651#L555 assume !(main_~length1~0 < 1); 1675#L555-2 assume !(main_~length2~0 < 1); 1644#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 1645#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 1668#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 1669#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 1680#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 1682#L564-3 assume !(main_~i~0 < main_~length1~0); 1673#L564-4 main_~i~1 := 0; 1663#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1664#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1665#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1666#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1689#L568-3 assume !(main_~i~1 < main_~length2~0); 1688#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 1676#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 1658#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 1659#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 1646#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 1647#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 1652#L542-4 goto; 1667#L543-2 [2021-08-27 17:41:29,879 INFO L793 eck$LassoCheckResult]: Loop: 1667#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 1648#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 1649#L543 assume !!(cstrstr_~sc~0 != cstrstr_~c~0); 1667#L543-2 [2021-08-27 17:41:29,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:29,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1779363886, now seen corresponding path program 1 times [2021-08-27 17:41:29,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:29,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939496156] [2021-08-27 17:41:29,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:29,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,890 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:29,906 INFO L82 PathProgramCache]: Analyzing trace with hash 99467, now seen corresponding path program 1 times [2021-08-27 17:41:29,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:29,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630408666] [2021-08-27 17:41:29,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:29,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,914 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,916 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:29,917 INFO L82 PathProgramCache]: Analyzing trace with hash 543230270, now seen corresponding path program 1 times [2021-08-27 17:41:29,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:29,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289491624] [2021-08-27 17:41:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:29,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,925 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:29,935 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:31,785 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:41:31,785 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:41:31,785 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:41:31,785 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:41:31,785 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:41:31,785 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:31,785 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:41:31,785 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:41:31,785 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration11_Lasso [2021-08-27 17:41:31,785 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:41:31,785 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:41:31,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:31,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:32,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:32,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:32,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:32,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:32,935 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:41:32,935 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:41:32,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:32,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:32,937 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) [2021-08-27 17:41:32,937 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 [2021-08-27 17:41:32,938 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 [2021-08-27 17:41:32,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:32,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:32,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:32,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:32,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:32,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:32,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:32,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:32,960 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 [2021-08-27 17:41:32,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:32,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:32,961 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) [2021-08-27 17:41:32,961 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 [2021-08-27 17:41:32,963 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 [2021-08-27 17:41:32,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:32,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:32,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:32,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:32,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:32,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:32,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:32,986 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 [2021-08-27 17:41:32,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:32,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:32,987 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) [2021-08-27 17:41:32,989 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 [2021-08-27 17:41:32,989 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 [2021-08-27 17:41:32,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:32,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:32,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:32,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:32,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:32,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:32,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:32,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,011 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 [2021-08-27 17:41:33,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,012 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) [2021-08-27 17:41:33,013 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 [2021-08-27 17:41:33,014 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 [2021-08-27 17:41:33,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,037 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 [2021-08-27 17:41:33,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,039 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) [2021-08-27 17:41:33,040 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 [2021-08-27 17:41:33,040 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 [2021-08-27 17:41:33,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,047 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:33,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,064 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) [2021-08-27 17:41:33,064 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 [2021-08-27 17:41:33,065 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 [2021-08-27 17:41:33,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,087 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 [2021-08-27 17:41:33,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,088 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) [2021-08-27 17:41:33,090 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 [2021-08-27 17:41:33,090 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 [2021-08-27 17:41:33,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,112 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 [2021-08-27 17:41:33,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,113 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) [2021-08-27 17:41:33,114 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 [2021-08-27 17:41:33,115 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 [2021-08-27 17:41:33,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,136 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 [2021-08-27 17:41:33,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,137 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) [2021-08-27 17:41:33,138 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 [2021-08-27 17:41:33,139 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 [2021-08-27 17:41:33,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:33,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:33,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-08-27 17:41:33,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,163 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) [2021-08-27 17:41:33,164 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 [2021-08-27 17:41:33,166 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 [2021-08-27 17:41:33,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,188 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 [2021-08-27 17:41:33,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,189 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) [2021-08-27 17:41:33,189 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 [2021-08-27 17:41:33,191 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 [2021-08-27 17:41:33,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,212 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 [2021-08-27 17:41:33,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,213 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) [2021-08-27 17:41:33,214 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 [2021-08-27 17:41:33,215 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 [2021-08-27 17:41:33,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,222 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-08-27 17:41:33,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,238 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) [2021-08-27 17:41:33,238 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 [2021-08-27 17:41:33,240 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 [2021-08-27 17:41:33,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,246 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-08-27 17:41:33,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,263 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) [2021-08-27 17:41:33,264 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 [2021-08-27 17:41:33,265 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 [2021-08-27 17:41:33,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,315 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 [2021-08-27 17:41:33,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,316 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) [2021-08-27 17:41:33,317 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 [2021-08-27 17:41:33,318 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 [2021-08-27 17:41:33,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,347 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 [2021-08-27 17:41:33,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,348 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) [2021-08-27 17:41:33,349 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 [2021-08-27 17:41:33,350 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 [2021-08-27 17:41:33,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,372 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 [2021-08-27 17:41:33,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,373 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) [2021-08-27 17:41:33,373 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 [2021-08-27 17:41:33,376 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 [2021-08-27 17:41:33,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:33,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:33,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-08-27 17:41:33,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,408 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) [2021-08-27 17:41:33,408 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 [2021-08-27 17:41:33,410 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 [2021-08-27 17:41:33,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,431 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 [2021-08-27 17:41:33,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,432 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) [2021-08-27 17:41:33,432 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 [2021-08-27 17:41:33,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:41:33,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,455 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 [2021-08-27 17:41:33,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,456 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) [2021-08-27 17:41:33,456 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 [2021-08-27 17:41:33,458 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 [2021-08-27 17:41:33,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,479 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 [2021-08-27 17:41:33,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,480 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) [2021-08-27 17:41:33,481 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 [2021-08-27 17:41:33,482 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 [2021-08-27 17:41:33,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,503 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 [2021-08-27 17:41:33,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,504 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) [2021-08-27 17:41:33,505 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 [2021-08-27 17:41:33,507 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 [2021-08-27 17:41:33,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-08-27 17:41:33,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,529 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) [2021-08-27 17:41:33,531 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 [2021-08-27 17:41:33,532 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 [2021-08-27 17:41:33,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:33,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:33,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-08-27 17:41:33,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,564 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) [2021-08-27 17:41:33,565 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 [2021-08-27 17:41:33,566 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 [2021-08-27 17:41:33,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,573 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,588 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 [2021-08-27 17:41:33,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,589 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) [2021-08-27 17:41:33,589 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 [2021-08-27 17:41:33,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:41:33,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:33,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:33,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:33,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-08-27 17:41:33,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,613 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) [2021-08-27 17:41:33,613 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 [2021-08-27 17:41:33,614 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 [2021-08-27 17:41:33,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,621 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:33,621 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:33,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:33,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-08-27 17:41:33,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,639 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) [2021-08-27 17:41:33,639 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 [2021-08-27 17:41:33,640 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 [2021-08-27 17:41:33,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:33,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:33,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:33,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:33,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:33,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:33,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:41:33,728 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2021-08-27 17:41:33,729 INFO L444 ModelExtractionUtils]: 33 out of 70 variables were initially zero. Simplification set additionally 34 variables to zero. [2021-08-27 17:41:33,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:33,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:33,739 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) [2021-08-27 17:41:33,740 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:41:33,749 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 [2021-08-27 17:41:33,769 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 17:41:33,770 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:41:33,770 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrstr_~s.offset, v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_3) = -1*ULTIMATE.start_cstrstr_~s.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_3 Supporting invariants [] [2021-08-27 17:41:33,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:33,843 INFO L297 tatePredicateManager]: 25 out of 26 supporting invariants were superfluous and have been removed [2021-08-27 17:41:33,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:33,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 17:41:33,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:33,969 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 17:41:33,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:41:33,999 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-27 17:41:33,999 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 59 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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) [2021-08-27 17:41:34,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:34,050 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 59 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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) Result 67 states and 78 transitions. Complement of second has 5 states. [2021-08-27 17:41:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 17:41:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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) [2021-08-27 17:41:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2021-08-27 17:41:34,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 23 letters. Loop has 3 letters. [2021-08-27 17:41:34,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:34,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 26 letters. Loop has 3 letters. [2021-08-27 17:41:34,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:34,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 23 letters. Loop has 6 letters. [2021-08-27 17:41:34,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:34,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 78 transitions. [2021-08-27 17:41:34,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:34,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 50 states and 58 transitions. [2021-08-27 17:41:34,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-08-27 17:41:34,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-08-27 17:41:34,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 58 transitions. [2021-08-27 17:41:34,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:34,052 INFO L681 BuchiCegarLoop]: Abstraction has 50 states and 58 transitions. [2021-08-27 17:41:34,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 58 transitions. [2021-08-27 17:41:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-08-27 17:41:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.16) internal successors, (58), 49 states have internal predecessors, (58), 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) [2021-08-27 17:41:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2021-08-27 17:41:34,054 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 58 transitions. [2021-08-27 17:41:34,054 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 58 transitions. [2021-08-27 17:41:34,054 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-08-27 17:41:34,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 58 transitions. [2021-08-27 17:41:34,054 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:34,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:34,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:34,054 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:34,054 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 17:41:34,055 INFO L791 eck$LassoCheckResult]: Stem: 2007#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1981#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 1982#L555 assume !(main_~length1~0 < 1); 2009#L555-2 assume !(main_~length2~0 < 1); 1976#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 1977#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 2003#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 2004#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 2011#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 2012#L564-3 assume !(main_~i~0 < main_~length1~0); 2008#L564-4 main_~i~1 := 0; 1997#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 1998#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 1999#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2000#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2015#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2014#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2013#L568-3 assume !(main_~i~1 < main_~length2~0); 2005#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 2006#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 1991#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 1992#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 2010#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 1993#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 1994#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 1974#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 1975#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 1983#L542-4 goto; 1995#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 1978#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 1980#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 2001#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 1966#L525 assume !(0 == cstrncmp_~n % 4294967296); 1967#L527-4 [2021-08-27 17:41:34,055 INFO L793 eck$LassoCheckResult]: Loop: 1967#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 1988#L528 assume !(cstrncmp_#t~mem6 != cstrncmp_#t~mem7);havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post11.base, 1 + cstrncmp_#t~post11.offset;call cstrncmp_#t~mem12 := read~int(cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, 1); 1984#L530 assume !(0 == cstrncmp_#t~mem12);havoc cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset;havoc cstrncmp_#t~mem12; 1970#L527-1 cstrncmp_#t~pre4 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 1971#L527-2 assume !!(0 != cstrncmp_#t~pre4 % 4294967296);havoc cstrncmp_#t~pre4; 1967#L527-4 [2021-08-27 17:41:34,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:34,055 INFO L82 PathProgramCache]: Analyzing trace with hash 577420407, now seen corresponding path program 1 times [2021-08-27 17:41:34,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:34,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959654710] [2021-08-27 17:41:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:34,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:34,069 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:34,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:34,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:34,093 INFO L82 PathProgramCache]: Analyzing trace with hash 118492775, now seen corresponding path program 1 times [2021-08-27 17:41:34,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:34,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224097724] [2021-08-27 17:41:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:34,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:34,099 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:34,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:34,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:34,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1867951025, now seen corresponding path program 1 times [2021-08-27 17:41:34,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:34,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705240452] [2021-08-27 17:41:34,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:34,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:34,211 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-08-27 17:41:34,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:41:34,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705240452] [2021-08-27 17:41:34,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705240452] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:34,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615115518] [2021-08-27 17:41:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:34,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 17:41:34,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:34,212 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 17:41:34,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-08-27 17:41:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:34,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 45 conjunts are in the unsatisfiable core [2021-08-27 17:41:34,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:34,404 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 [2021-08-27 17:41:34,656 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-08-27 17:41:34,656 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 37 [2021-08-27 17:41:35,423 INFO L354 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2021-08-27 17:41:35,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 34 [2021-08-27 17:41:35,447 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-27 17:41:35,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615115518] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:35,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 17:41:35,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11] total 17 [2021-08-27 17:41:35,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507006262] [2021-08-27 17:41:35,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:41:35,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 17:41:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-08-27 17:41:35,619 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. cyclomatic complexity: 13 Second operand has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 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) [2021-08-27 17:41:36,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:41:36,590 INFO L93 Difference]: Finished difference Result 215 states and 243 transitions. [2021-08-27 17:41:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-27 17:41:36,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 243 transitions. [2021-08-27 17:41:36,591 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-08-27 17:41:36,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 120 states and 137 transitions. [2021-08-27 17:41:36,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-08-27 17:41:36,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-08-27 17:41:36,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 137 transitions. [2021-08-27 17:41:36,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:36,593 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 137 transitions. [2021-08-27 17:41:36,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 137 transitions. [2021-08-27 17:41:36,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 83. [2021-08-27 17:41:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 83 states have (on average 1.144578313253012) internal successors, (95), 82 states have internal predecessors, (95), 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) [2021-08-27 17:41:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 95 transitions. [2021-08-27 17:41:36,595 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 95 transitions. [2021-08-27 17:41:36,595 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 95 transitions. [2021-08-27 17:41:36,595 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-08-27 17:41:36,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 95 transitions. [2021-08-27 17:41:36,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:36,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:36,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:36,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:36,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 17:41:36,597 INFO L791 eck$LassoCheckResult]: Stem: 2452#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2423#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 2424#L555 assume !(main_~length1~0 < 1); 2456#L555-2 assume !(main_~length2~0 < 1); 2416#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 2417#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 2448#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 2449#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 2463#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 2481#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 2483#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 2486#L564-3 assume !(main_~i~0 < main_~length1~0); 2453#L564-4 main_~i~1 := 0; 2454#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2461#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2462#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2479#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2480#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2475#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2476#L568-3 assume !(main_~i~1 < main_~length2~0); 2450#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 2451#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 2434#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 2435#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 2460#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 2436#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 2437#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 2466#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 2470#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 2464#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 2465#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 2425#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 2426#L542-4 goto; 2459#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 2420#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 2422#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 2446#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 2408#L525 assume !(0 == cstrncmp_~n % 4294967296); 2409#L527-4 [2021-08-27 17:41:36,597 INFO L793 eck$LassoCheckResult]: Loop: 2409#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 2431#L528 assume !(cstrncmp_#t~mem6 != cstrncmp_#t~mem7);havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post11.base, 1 + cstrncmp_#t~post11.offset;call cstrncmp_#t~mem12 := read~int(cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, 1); 2427#L530 assume !(0 == cstrncmp_#t~mem12);havoc cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset;havoc cstrncmp_#t~mem12; 2412#L527-1 cstrncmp_#t~pre4 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 2413#L527-2 assume !!(0 != cstrncmp_#t~pre4 % 4294967296);havoc cstrncmp_#t~pre4; 2409#L527-4 [2021-08-27 17:41:36,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:36,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1085107107, now seen corresponding path program 2 times [2021-08-27 17:41:36,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:36,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010806682] [2021-08-27 17:41:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:36,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-27 17:41:36,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:41:36,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010806682] [2021-08-27 17:41:36,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010806682] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:36,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048731640] [2021-08-27 17:41:36,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 17:41:36,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 17:41:36,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:36,686 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 17:41:36,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-08-27 17:41:36,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 17:41:36,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 17:41:36,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2021-08-27 17:41:36,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:36,929 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 17:41:36,929 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 [2021-08-27 17:41:37,124 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 17:41:37,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11 [2021-08-27 17:41:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-27 17:41:37,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048731640] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:37,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 17:41:37,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 19 [2021-08-27 17:41:37,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009468568] [2021-08-27 17:41:37,151 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:41:37,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:37,152 INFO L82 PathProgramCache]: Analyzing trace with hash 118492775, now seen corresponding path program 2 times [2021-08-27 17:41:37,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:37,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725062860] [2021-08-27 17:41:37,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:37,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:37,161 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:37,167 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:37,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:41:37,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-27 17:41:37,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-08-27 17:41:37,331 INFO L87 Difference]: Start difference. First operand 83 states and 95 transitions. cyclomatic complexity: 19 Second operand has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 19 states have internal predecessors, (49), 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) [2021-08-27 17:41:37,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:41:37,517 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2021-08-27 17:41:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 17:41:37,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 119 transitions. [2021-08-27 17:41:37,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:37,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 89 states and 101 transitions. [2021-08-27 17:41:37,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-08-27 17:41:37,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-08-27 17:41:37,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 101 transitions. [2021-08-27 17:41:37,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:37,519 INFO L681 BuchiCegarLoop]: Abstraction has 89 states and 101 transitions. [2021-08-27 17:41:37,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 101 transitions. [2021-08-27 17:41:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-08-27 17:41:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 87 states have (on average 1.1379310344827587) internal successors, (99), 86 states have internal predecessors, (99), 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) [2021-08-27 17:41:37,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2021-08-27 17:41:37,521 INFO L704 BuchiCegarLoop]: Abstraction has 87 states and 99 transitions. [2021-08-27 17:41:37,521 INFO L587 BuchiCegarLoop]: Abstraction has 87 states and 99 transitions. [2021-08-27 17:41:37,521 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-08-27 17:41:37,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 99 transitions. [2021-08-27 17:41:37,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:37,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:37,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:37,523 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:37,523 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 17:41:37,523 INFO L791 eck$LassoCheckResult]: Stem: 2783#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2755#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 2756#L555 assume !(main_~length1~0 < 1); 2785#L555-2 assume !(main_~length2~0 < 1); 2751#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 2752#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 2789#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 2790#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 2791#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 2825#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 2779#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 2780#L564-3 assume !(main_~i~0 < main_~length1~0); 2816#L564-4 main_~i~1 := 0; 2824#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2823#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2822#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2821#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2820#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2819#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2815#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 2814#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 2813#L568-3 assume !(main_~i~1 < main_~length2~0); 2812#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 2811#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 2810#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 2809#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 2807#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 2805#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 2803#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 2804#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 2802#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 2801#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 2800#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 2799#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 2797#L542-4 goto; 2795#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 2786#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 2776#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 2777#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 2741#L525 assume !(0 == cstrncmp_~n % 4294967296); 2742#L527-4 [2021-08-27 17:41:37,523 INFO L793 eck$LassoCheckResult]: Loop: 2742#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 2762#L528 assume !(cstrncmp_#t~mem6 != cstrncmp_#t~mem7);havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post11.base, 1 + cstrncmp_#t~post11.offset;call cstrncmp_#t~mem12 := read~int(cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, 1); 2758#L530 assume !(0 == cstrncmp_#t~mem12);havoc cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset;havoc cstrncmp_#t~mem12; 2745#L527-1 cstrncmp_#t~pre4 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 2746#L527-2 assume !!(0 != cstrncmp_#t~pre4 % 4294967296);havoc cstrncmp_#t~pre4; 2742#L527-4 [2021-08-27 17:41:37,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:37,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1202872581, now seen corresponding path program 3 times [2021-08-27 17:41:37,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:37,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478481112] [2021-08-27 17:41:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:37,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:37,535 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:37,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:37,549 INFO L82 PathProgramCache]: Analyzing trace with hash 118492775, now seen corresponding path program 3 times [2021-08-27 17:41:37,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:37,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837503225] [2021-08-27 17:41:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:37,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:37,553 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:37,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:37,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:37,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1087325267, now seen corresponding path program 2 times [2021-08-27 17:41:37,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:37,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541937959] [2021-08-27 17:41:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:37,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:37,570 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:37,587 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:43,299 WARN L207 SmtUtils]: Spent 5.57 s on a formula simplification. DAG size of input: 337 DAG size of output: 261 [2021-08-27 17:41:44,308 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:41:44,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:41:44,308 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:41:44,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:41:44,308 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:41:44,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:44,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:41:44,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:41:44,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration14_Lasso [2021-08-27 17:41:44,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:41:44,308 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:41:44,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:44,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:45,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:41:46,742 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:41:46,742 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:41:46,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,743 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) [2021-08-27 17:41:46,744 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 [2021-08-27 17:41:46,773 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 [2021-08-27 17:41:46,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:46,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:46,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:46,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-08-27 17:41:46,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,796 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) [2021-08-27 17:41:46,797 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 [2021-08-27 17:41:46,798 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 [2021-08-27 17:41:46,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:46,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:46,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:46,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,819 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 [2021-08-27 17:41:46,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,820 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) [2021-08-27 17:41:46,821 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 [2021-08-27 17:41:46,822 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 [2021-08-27 17:41:46,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:46,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:46,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:46,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-08-27 17:41:46,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,845 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) [2021-08-27 17:41:46,846 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 [2021-08-27 17:41:46,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:41:46,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:46,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:46,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:46,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,869 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 [2021-08-27 17:41:46,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,870 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) [2021-08-27 17:41:46,871 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 [2021-08-27 17:41:46,872 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 [2021-08-27 17:41:46,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:46,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:46,881 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-08-27 17:41:46,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,897 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) [2021-08-27 17:41:46,898 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 [2021-08-27 17:41:46,899 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 [2021-08-27 17:41:46,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:46,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:46,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:46,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-08-27 17:41:46,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,922 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) [2021-08-27 17:41:46,922 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 [2021-08-27 17:41:46,923 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 [2021-08-27 17:41:46,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:46,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:46,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:46,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-08-27 17:41:46,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,947 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) [2021-08-27 17:41:46,947 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 [2021-08-27 17:41:46,948 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 [2021-08-27 17:41:46,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:46,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:46,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:46,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,969 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 [2021-08-27 17:41:46,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,970 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) [2021-08-27 17:41:46,971 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 [2021-08-27 17:41:46,972 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 [2021-08-27 17:41:46,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:46,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:46,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:46,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:46,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:46,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:46,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:46,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:46,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-08-27 17:41:46,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:46,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:46,994 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) [2021-08-27 17:41:46,995 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 [2021-08-27 17:41:46,997 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 [2021-08-27 17:41:47,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,018 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 [2021-08-27 17:41:47,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,019 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) [2021-08-27 17:41:47,019 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 [2021-08-27 17:41:47,021 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 [2021-08-27 17:41:47,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-08-27 17:41:47,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,043 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) [2021-08-27 17:41:47,044 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 [2021-08-27 17:41:47,044 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 [2021-08-27 17:41:47,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,066 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 [2021-08-27 17:41:47,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,067 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) [2021-08-27 17:41:47,067 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 [2021-08-27 17:41:47,069 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 [2021-08-27 17:41:47,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,090 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 [2021-08-27 17:41:47,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,091 INFO L229 MonitoredProcess]: Starting monitored process 83 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) [2021-08-27 17:41:47,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-08-27 17:41:47,093 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 [2021-08-27 17:41:47,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-08-27 17:41:47,114 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,115 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) [2021-08-27 17:41:47,115 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 [2021-08-27 17:41:47,117 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 [2021-08-27 17:41:47,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-08-27 17:41:47,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,140 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) [2021-08-27 17:41:47,140 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 [2021-08-27 17:41:47,141 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 [2021-08-27 17:41:47,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-08-27 17:41:47,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,166 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) [2021-08-27 17:41:47,167 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 [2021-08-27 17:41:47,168 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 [2021-08-27 17:41:47,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:47,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,192 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) [2021-08-27 17:41:47,193 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 [2021-08-27 17:41:47,194 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 [2021-08-27 17:41:47,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,201 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,215 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 [2021-08-27 17:41:47,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,216 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) [2021-08-27 17:41:47,217 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 [2021-08-27 17:41:47,218 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 [2021-08-27 17:41:47,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-08-27 17:41:47,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,240 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) [2021-08-27 17:41:47,241 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 [2021-08-27 17:41:47,242 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 [2021-08-27 17:41:47,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,264 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 [2021-08-27 17:41:47,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,265 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) [2021-08-27 17:41:47,265 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 [2021-08-27 17:41:47,267 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 [2021-08-27 17:41:47,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,288 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 [2021-08-27 17:41:47,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,289 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) [2021-08-27 17:41:47,289 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 [2021-08-27 17:41:47,291 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 [2021-08-27 17:41:47,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,312 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 [2021-08-27 17:41:47,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,313 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) [2021-08-27 17:41:47,315 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 [2021-08-27 17:41:47,315 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 [2021-08-27 17:41:47,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,338 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 [2021-08-27 17:41:47,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,339 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) [2021-08-27 17:41:47,340 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 [2021-08-27 17:41:47,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:41:47,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,362 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 [2021-08-27 17:41:47,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,363 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) [2021-08-27 17:41:47,364 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 [2021-08-27 17:41:47,365 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 [2021-08-27 17:41:47,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,387 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 [2021-08-27 17:41:47,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,388 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) [2021-08-27 17:41:47,388 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 [2021-08-27 17:41:47,390 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 [2021-08-27 17:41:47,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,411 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 [2021-08-27 17:41:47,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,412 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) [2021-08-27 17:41:47,412 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 [2021-08-27 17:41:47,414 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 [2021-08-27 17:41:47,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-08-27 17:41:47,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,438 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) [2021-08-27 17:41:47,438 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 [2021-08-27 17:41:47,439 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 [2021-08-27 17:41:47,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-08-27 17:41:47,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,461 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) [2021-08-27 17:41:47,462 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 [2021-08-27 17:41:47,463 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 [2021-08-27 17:41:47,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,470 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,484 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 [2021-08-27 17:41:47,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,485 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) [2021-08-27 17:41:47,486 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 [2021-08-27 17:41:47,487 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 [2021-08-27 17:41:47,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,508 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 [2021-08-27 17:41:47,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,509 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) [2021-08-27 17:41:47,510 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 [2021-08-27 17:41:47,511 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 [2021-08-27 17:41:47,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:41:47,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:41:47,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:41:47,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:47,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,533 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) [2021-08-27 17:41:47,534 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 [2021-08-27 17:41:47,535 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 [2021-08-27 17:41:47,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,542 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,542 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,559 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 [2021-08-27 17:41:47,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,560 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) [2021-08-27 17:41:47,561 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 [2021-08-27 17:41:47,562 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 [2021-08-27 17:41:47,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,567 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 17:41:47,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,570 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 17:41:47,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2021-08-27 17:41:47,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,591 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) [2021-08-27 17:41:47,591 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 [2021-08-27 17:41:47,593 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 [2021-08-27 17:41:47,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,619 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 [2021-08-27 17:41:47,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,620 INFO L229 MonitoredProcess]: Starting monitored process 104 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) [2021-08-27 17:41:47,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-08-27 17:41:47,622 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 [2021-08-27 17:41:47,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,627 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 17:41:47,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,628 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 17:41:47,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2021-08-27 17:41:47,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,646 INFO L229 MonitoredProcess]: Starting monitored process 105 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) [2021-08-27 17:41:47,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-08-27 17:41:47,648 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 [2021-08-27 17:41:47,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-08-27 17:41:47,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,675 INFO L229 MonitoredProcess]: Starting monitored process 106 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) [2021-08-27 17:41:47,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-08-27 17:41:47,677 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 [2021-08-27 17:41:47,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,682 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 17:41:47,682 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 17:41:47,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,687 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-08-27 17:41:47,688 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 17:41:47,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-08-27 17:41:47,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,713 INFO L229 MonitoredProcess]: Starting monitored process 107 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) [2021-08-27 17:41:47,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-08-27 17:41:47,715 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 [2021-08-27 17:41:47,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2021-08-27 17:41:47,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,739 INFO L229 MonitoredProcess]: Starting monitored process 108 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) [2021-08-27 17:41:47,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-08-27 17:41:47,741 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 [2021-08-27 17:41:47,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:47,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,793 INFO L229 MonitoredProcess]: Starting monitored process 109 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) [2021-08-27 17:41:47,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-08-27 17:41:47,795 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 [2021-08-27 17:41:47,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:41:47,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2021-08-27 17:41:47,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,818 INFO L229 MonitoredProcess]: Starting monitored process 110 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) [2021-08-27 17:41:47,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-08-27 17:41:47,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:41:47,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:41:47,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:41:47,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:41:47,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:41:47,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:41:47,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:41:47,872 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:41:47,946 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2021-08-27 17:41:47,946 INFO L444 ModelExtractionUtils]: 16 out of 82 variables were initially zero. Simplification set additionally 63 variables to zero. [2021-08-27 17:41:47,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:41:47,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:47,956 INFO L229 MonitoredProcess]: Starting monitored process 111 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) [2021-08-27 17:41:47,965 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:41:47,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-08-27 17:41:47,984 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 17:41:47,984 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:41:47,984 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncmp_~s1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_5) = -1*ULTIMATE.start_cstrncmp_~s1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_5 Supporting invariants [] [2021-08-27 17:41:48,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:48,194 INFO L297 tatePredicateManager]: 54 out of 57 supporting invariants were superfluous and have been removed [2021-08-27 17:41:48,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:48,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 17:41:48,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:48,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 17:41:48,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:48,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-08-27 17:41:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:41:48,638 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2021-08-27 17:41:48,638 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 87 states and 99 transitions. cyclomatic complexity: 19 Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-08-27 17:41:48,692 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 87 states and 99 transitions. cyclomatic complexity: 19. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 135 states and 155 transitions. Complement of second has 10 states. [2021-08-27 17:41:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 17:41:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-08-27 17:41:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 43 transitions. [2021-08-27 17:41:48,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 43 transitions. Stem has 40 letters. Loop has 5 letters. [2021-08-27 17:41:48,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:48,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 43 transitions. Stem has 45 letters. Loop has 5 letters. [2021-08-27 17:41:48,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:48,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 43 transitions. Stem has 40 letters. Loop has 10 letters. [2021-08-27 17:41:48,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:41:48,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 155 transitions. [2021-08-27 17:41:48,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:48,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 111 states and 128 transitions. [2021-08-27 17:41:48,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-08-27 17:41:48,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 17:41:48,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 128 transitions. [2021-08-27 17:41:48,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:48,697 INFO L681 BuchiCegarLoop]: Abstraction has 111 states and 128 transitions. [2021-08-27 17:41:48,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 128 transitions. [2021-08-27 17:41:48,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2021-08-27 17:41:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.15) internal successors, (115), 99 states have internal predecessors, (115), 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) [2021-08-27 17:41:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2021-08-27 17:41:48,699 INFO L704 BuchiCegarLoop]: Abstraction has 100 states and 115 transitions. [2021-08-27 17:41:48,699 INFO L587 BuchiCegarLoop]: Abstraction has 100 states and 115 transitions. [2021-08-27 17:41:48,699 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-08-27 17:41:48,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 115 transitions. [2021-08-27 17:41:48,699 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:48,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:48,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:48,700 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:48,700 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 17:41:48,700 INFO L791 eck$LassoCheckResult]: Stem: 3407#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3379#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 3380#L555 assume !(main_~length1~0 < 1); 3412#L555-2 assume !(main_~length2~0 < 1); 3372#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 3373#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 3403#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 3404#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 3418#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 3447#L564-3 assume !(main_~i~0 < main_~length1~0); 3408#L564-4 main_~i~1 := 0; 3409#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 3463#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 3461#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 3459#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 3458#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 3457#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 3456#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 3455#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 3454#L568-3 assume !(main_~i~1 < main_~length2~0); 3453#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 3452#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 3451#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 3450#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 3449#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 3391#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 3392#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 3441#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 3439#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 3438#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 3437#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 3436#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 3435#L542-4 goto; 3414#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 3415#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 3434#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 3430#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 3366#L525 assume !(0 == cstrncmp_~n % 4294967296); 3367#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 3402#L528 assume cstrncmp_#t~mem6 != cstrncmp_#t~mem7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;call cstrncmp_#t~mem9 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, 1);cstrncmp_#res := cstrncmp_#t~mem9 % 256 - cstrncmp_#t~mem10 % 256;havoc cstrncmp_#t~mem9;havoc cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset;havoc cstrncmp_#t~mem10; 3413#L533 cstrstr_#t~ret16 := cstrncmp_#res; 3385#L542-2 assume !!(0 != cstrstr_#t~ret16);havoc cstrstr_#t~ret16; 3386#L542-4 goto; 3394#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 3376#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 3377#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 3400#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 3364#L525 assume !(0 == cstrncmp_~n % 4294967296); 3365#L527-4 [2021-08-27 17:41:48,701 INFO L793 eck$LassoCheckResult]: Loop: 3365#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 3387#L528 assume !(cstrncmp_#t~mem6 != cstrncmp_#t~mem7);havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post11.base, 1 + cstrncmp_#t~post11.offset;call cstrncmp_#t~mem12 := read~int(cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, 1); 3382#L530 assume !(0 == cstrncmp_#t~mem12);havoc cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset;havoc cstrncmp_#t~mem12; 3368#L527-1 cstrncmp_#t~pre4 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 3369#L527-2 assume !!(0 != cstrncmp_#t~pre4 % 4294967296);havoc cstrncmp_#t~pre4; 3365#L527-4 [2021-08-27 17:41:48,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:48,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1314272625, now seen corresponding path program 1 times [2021-08-27 17:41:48,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:48,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387678713] [2021-08-27 17:41:48,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:48,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:48,930 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-08-27 17:41:48,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:41:48,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387678713] [2021-08-27 17:41:48,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387678713] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:48,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160563602] [2021-08-27 17:41:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:48,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 17:41:48,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:48,933 INFO L229 MonitoredProcess]: Starting monitored process 112 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 17:41:48,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2021-08-27 17:41:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:49,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 43 conjunts are in the unsatisfiable core [2021-08-27 17:41:49,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:49,254 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 [2021-08-27 17:41:49,478 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-08-27 17:41:49,478 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 31 [2021-08-27 17:41:50,062 INFO L354 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2021-08-27 17:41:50,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 23 [2021-08-27 17:41:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-08-27 17:41:50,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160563602] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:50,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 17:41:50,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-08-27 17:41:50,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42092318] [2021-08-27 17:41:50,092 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:41:50,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:50,092 INFO L82 PathProgramCache]: Analyzing trace with hash 118492775, now seen corresponding path program 4 times [2021-08-27 17:41:50,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:50,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577461608] [2021-08-27 17:41:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:50,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:50,097 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:50,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:50,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:41:50,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-27 17:41:50,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-08-27 17:41:50,249 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. cyclomatic complexity: 24 Second operand has 20 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 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) [2021-08-27 17:41:50,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:41:50,739 INFO L93 Difference]: Finished difference Result 111 states and 124 transitions. [2021-08-27 17:41:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 17:41:50,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 124 transitions. [2021-08-27 17:41:50,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:50,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 74 states and 85 transitions. [2021-08-27 17:41:50,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-08-27 17:41:50,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-08-27 17:41:50,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 85 transitions. [2021-08-27 17:41:50,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:50,741 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 85 transitions. [2021-08-27 17:41:50,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 85 transitions. [2021-08-27 17:41:50,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-08-27 17:41:50,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 71 states have internal predecessors, (83), 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) [2021-08-27 17:41:50,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2021-08-27 17:41:50,743 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 83 transitions. [2021-08-27 17:41:50,743 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 83 transitions. [2021-08-27 17:41:50,743 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-08-27 17:41:50,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 83 transitions. [2021-08-27 17:41:50,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:50,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:50,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:50,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:50,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 17:41:50,744 INFO L791 eck$LassoCheckResult]: Stem: 3803#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3773#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 3774#L555 assume !(main_~length1~0 < 1); 3806#L555-2 assume !(main_~length2~0 < 1); 3767#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 3768#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 3809#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 3810#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 3799#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 3800#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 3820#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 3819#L564-3 assume !(main_~i~0 < main_~length1~0); 3804#L564-4 main_~i~1 := 0; 3789#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 3790#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 3791#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 3792#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 3828#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 3827#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 3826#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 3818#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 3817#L568-3 assume !(main_~i~1 < main_~length2~0); 3801#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 3802#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 3783#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 3784#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 3808#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 3785#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 3786#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 3813#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 3812#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 3811#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 3769#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 3770#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 3775#L542-4 goto; 3787#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 3771#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 3772#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 3796#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 3821#L525 assume !(0 == cstrncmp_~n % 4294967296); 3822#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 3798#L528 assume cstrncmp_#t~mem6 != cstrncmp_#t~mem7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;call cstrncmp_#t~mem9 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, 1);cstrncmp_#res := cstrncmp_#t~mem9 % 256 - cstrncmp_#t~mem10 % 256;havoc cstrncmp_#t~mem9;havoc cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset;havoc cstrncmp_#t~mem10; 3807#L533 cstrstr_#t~ret16 := cstrncmp_#res; 3778#L542-2 assume !!(0 != cstrstr_#t~ret16);havoc cstrstr_#t~ret16; 3779#L542-4 goto; 3788#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 3815#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 3793#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 3794#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 3759#L525 assume !(0 == cstrncmp_~n % 4294967296); 3760#L527-4 [2021-08-27 17:41:50,744 INFO L793 eck$LassoCheckResult]: Loop: 3760#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 3780#L528 assume !(cstrncmp_#t~mem6 != cstrncmp_#t~mem7);havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post11.base, 1 + cstrncmp_#t~post11.offset;call cstrncmp_#t~mem12 := read~int(cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, 1); 3776#L530 assume !(0 == cstrncmp_#t~mem12);havoc cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset;havoc cstrncmp_#t~mem12; 3763#L527-1 cstrncmp_#t~pre4 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 3764#L527-2 assume !!(0 != cstrncmp_#t~pre4 % 4294967296);havoc cstrncmp_#t~pre4; 3760#L527-4 [2021-08-27 17:41:50,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:50,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1519050033, now seen corresponding path program 2 times [2021-08-27 17:41:50,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:50,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493384930] [2021-08-27 17:41:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:50,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:50,760 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:50,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:50,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:50,779 INFO L82 PathProgramCache]: Analyzing trace with hash 118492775, now seen corresponding path program 5 times [2021-08-27 17:41:50,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:50,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208484239] [2021-08-27 17:41:50,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:50,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:50,783 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:50,785 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:50,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:50,786 INFO L82 PathProgramCache]: Analyzing trace with hash -419005351, now seen corresponding path program 1 times [2021-08-27 17:41:50,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:50,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791768662] [2021-08-27 17:41:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:50,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:50,982 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-08-27 17:41:50,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:41:50,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791768662] [2021-08-27 17:41:50,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791768662] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:50,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677454706] [2021-08-27 17:41:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:50,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 17:41:50,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:41:50,985 INFO L229 MonitoredProcess]: Starting monitored process 113 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 17:41:51,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2021-08-27 17:41:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:41:51,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 109 conjunts are in the unsatisfiable core [2021-08-27 17:41:51,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:41:51,380 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 [2021-08-27 17:41:51,658 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2021-08-27 17:41:52,568 INFO L354 Elim1Store]: treesize reduction 75, result has 9.6 percent of original size [2021-08-27 17:41:52,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 34 [2021-08-27 17:41:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-27 17:41:52,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677454706] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:41:52,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 17:41:52,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 29 [2021-08-27 17:41:52,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205217787] [2021-08-27 17:41:52,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:41:52,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-27 17:41:52,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2021-08-27 17:41:52,748 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. cyclomatic complexity: 18 Second operand has 29 states, 29 states have (on average 3.0344827586206895) internal successors, (88), 29 states have internal predecessors, (88), 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) [2021-08-27 17:41:53,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:41:53,753 INFO L93 Difference]: Finished difference Result 184 states and 211 transitions. [2021-08-27 17:41:53,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-27 17:41:53,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 211 transitions. [2021-08-27 17:41:53,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-08-27 17:41:53,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 178 states and 205 transitions. [2021-08-27 17:41:53,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-08-27 17:41:53,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-08-27 17:41:53,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 178 states and 205 transitions. [2021-08-27 17:41:53,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:41:53,755 INFO L681 BuchiCegarLoop]: Abstraction has 178 states and 205 transitions. [2021-08-27 17:41:53,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states and 205 transitions. [2021-08-27 17:41:53,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 123. [2021-08-27 17:41:53,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 123 states have (on average 1.1544715447154472) internal successors, (142), 122 states have internal predecessors, (142), 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) [2021-08-27 17:41:53,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2021-08-27 17:41:53,757 INFO L704 BuchiCegarLoop]: Abstraction has 123 states and 142 transitions. [2021-08-27 17:41:53,757 INFO L587 BuchiCegarLoop]: Abstraction has 123 states and 142 transitions. [2021-08-27 17:41:53,757 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-08-27 17:41:53,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 142 transitions. [2021-08-27 17:41:53,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:41:53,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:41:53,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:41:53,759 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:41:53,759 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 17:41:53,759 INFO L791 eck$LassoCheckResult]: Stem: 4296#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4263#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 4264#L555 assume !(main_~length1~0 < 1); 4299#L555-2 assume !(main_~length2~0 < 1); 4259#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 4260#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 4308#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 4309#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 4292#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 4293#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 4335#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 4336#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 4332#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 4330#L564-3 assume !(main_~i~0 < main_~length1~0); 4331#L564-4 main_~i~1 := 0; 4282#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 4283#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 4284#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 4285#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 4328#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 4329#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 4325#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 4321#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 4319#L568-3 assume !(main_~i~1 < main_~length2~0); 4320#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 4301#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 4302#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 4312#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 4313#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 4276#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 4277#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 4317#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 4318#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 4310#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 4311#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 4265#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 4266#L542-4 goto; 4303#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 4261#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 4262#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 4370#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 4369#L525 assume !(0 == cstrncmp_~n % 4294967296); 4367#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 4291#L528 assume cstrncmp_#t~mem6 != cstrncmp_#t~mem7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;call cstrncmp_#t~mem9 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, 1);cstrncmp_#res := cstrncmp_#t~mem9 % 256 - cstrncmp_#t~mem10 % 256;havoc cstrncmp_#t~mem9;havoc cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset;havoc cstrncmp_#t~mem10; 4300#L533 cstrstr_#t~ret16 := cstrncmp_#res; 4270#L542-2 assume !!(0 != cstrstr_#t~ret16);havoc cstrstr_#t~ret16; 4271#L542-4 goto; 4339#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 4337#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 4286#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 4287#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 4249#L525 assume !(0 == cstrncmp_~n % 4294967296); 4250#L527-4 [2021-08-27 17:41:53,759 INFO L793 eck$LassoCheckResult]: Loop: 4250#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 4272#L528 assume !(cstrncmp_#t~mem6 != cstrncmp_#t~mem7);havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post11.base, 1 + cstrncmp_#t~post11.offset;call cstrncmp_#t~mem12 := read~int(cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, 1); 4267#L530 assume !(0 == cstrncmp_#t~mem12);havoc cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset;havoc cstrncmp_#t~mem12; 4253#L527-1 cstrncmp_#t~pre4 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 4254#L527-2 assume !!(0 != cstrncmp_#t~pre4 % 4294967296);havoc cstrncmp_#t~pre4; 4250#L527-4 [2021-08-27 17:41:53,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:53,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1332858707, now seen corresponding path program 3 times [2021-08-27 17:41:53,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:53,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650377126] [2021-08-27 17:41:53,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:53,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:53,776 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:53,795 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:53,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:53,796 INFO L82 PathProgramCache]: Analyzing trace with hash 118492775, now seen corresponding path program 6 times [2021-08-27 17:41:53,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:53,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982197308] [2021-08-27 17:41:53,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:53,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:53,800 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:53,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:41:53,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:41:53,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1922995909, now seen corresponding path program 2 times [2021-08-27 17:41:53,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:41:53,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014907329] [2021-08-27 17:41:53,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:41:53,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:41:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:53,820 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:41:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:41:53,846 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:42:06,470 WARN L207 SmtUtils]: Spent 12.46 s on a formula simplification. DAG size of input: 449 DAG size of output: 341 [2021-08-27 17:42:07,866 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:42:07,866 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:42:07,866 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:42:07,866 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:42:07,866 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:42:07,866 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:07,866 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:42:07,866 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:42:07,866 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration17_Lasso [2021-08-27 17:42:07,866 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:42:07,866 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:42:07,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:07,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:07,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:07,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:07,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:07,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:07,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:07,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:07,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:09,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:11,167 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:42:11,167 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:42:11,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,181 INFO L229 MonitoredProcess]: Starting monitored process 114 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) [2021-08-27 17:42:11,190 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 [2021-08-27 17:42:11,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:11,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:11,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:11,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-08-27 17:42:11,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:11,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,225 INFO L229 MonitoredProcess]: Starting monitored process 115 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) [2021-08-27 17:42:11,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-08-27 17:42:11,227 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 [2021-08-27 17:42:11,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:11,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:11,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:11,244 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:11,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,261 INFO L229 MonitoredProcess]: Starting monitored process 116 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) [2021-08-27 17:42:11,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-08-27 17:42:11,263 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 [2021-08-27 17:42:11,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:11,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:11,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:11,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:11,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,298 INFO L229 MonitoredProcess]: Starting monitored process 117 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) [2021-08-27 17:42:11,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2021-08-27 17:42:11,300 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 [2021-08-27 17:42:11,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:11,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:11,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:11,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:11,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,341 INFO L229 MonitoredProcess]: Starting monitored process 118 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) [2021-08-27 17:42:11,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-08-27 17:42:11,344 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 [2021-08-27 17:42:11,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:11,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:11,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:11,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Ended with exit code 0 [2021-08-27 17:42:11,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,367 INFO L229 MonitoredProcess]: Starting monitored process 119 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) [2021-08-27 17:42:11,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-08-27 17:42:11,369 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 [2021-08-27 17:42:11,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:11,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:11,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:11,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Ended with exit code 0 [2021-08-27 17:42:11,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,392 INFO L229 MonitoredProcess]: Starting monitored process 120 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) [2021-08-27 17:42:11,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-08-27 17:42:11,394 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 [2021-08-27 17:42:11,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:11,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:11,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:11,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,433 INFO L229 MonitoredProcess]: Starting monitored process 121 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) [2021-08-27 17:42:11,441 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 [2021-08-27 17:42:11,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-08-27 17:42:11,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:11,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:11,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:11,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:11,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,473 INFO L229 MonitoredProcess]: Starting monitored process 122 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) [2021-08-27 17:42:11,481 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 [2021-08-27 17:42:11,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-08-27 17:42:11,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,488 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 17:42:11,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,489 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 17:42:11,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:11,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:11,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,516 INFO L229 MonitoredProcess]: Starting monitored process 123 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) [2021-08-27 17:42:11,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-08-27 17:42:11,518 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 [2021-08-27 17:42:11,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:11,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:11,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:11,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,552 INFO L229 MonitoredProcess]: Starting monitored process 124 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) [2021-08-27 17:42:11,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-08-27 17:42:11,590 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 [2021-08-27 17:42:11,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:11,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:11,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2021-08-27 17:42:11,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,614 INFO L229 MonitoredProcess]: Starting monitored process 125 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) [2021-08-27 17:42:11,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-08-27 17:42:11,616 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 [2021-08-27 17:42:11,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:11,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:11,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:11,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0 [2021-08-27 17:42:11,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,644 INFO L229 MonitoredProcess]: Starting monitored process 126 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) [2021-08-27 17:42:11,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-08-27 17:42:11,646 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 [2021-08-27 17:42:11,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:11,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:11,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:11,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:11,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:11,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:11,699 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:42:11,780 INFO L443 ModelExtractionUtils]: Simplification made 38 calls to the SMT solver. [2021-08-27 17:42:11,781 INFO L444 ModelExtractionUtils]: 46 out of 91 variables were initially zero. Simplification set additionally 39 variables to zero. [2021-08-27 17:42:11,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:11,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:11,790 INFO L229 MonitoredProcess]: Starting monitored process 127 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) [2021-08-27 17:42:11,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:42:11,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-08-27 17:42:11,809 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 17:42:11,810 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:42:11,810 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_5, ULTIMATE.start_cstrstr_~s.offset, ULTIMATE.start_cstrncmp_~s2.offset) = 5*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_5 + 8*ULTIMATE.start_cstrstr_~s.offset - 6*ULTIMATE.start_cstrncmp_~s2.offset Supporting invariants [4*ULTIMATE.start_cstrlen_~s~0.offset - 3*v_rep(select #length ULTIMATE.start_cstrncmp_~s2.base)_2 >= 0] [2021-08-27 17:42:11,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:12,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:12,104 INFO L297 tatePredicateManager]: 64 out of 68 supporting invariants were superfluous and have been removed [2021-08-27 17:42:12,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:12,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 74 conjunts are in the unsatisfiable core [2021-08-27 17:42:12,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:12,217 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 17:42:12,218 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 [2021-08-27 17:42:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:13,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 17:42:13,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:42:13,379 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.15 stem predicates 2 loop predicates [2021-08-27 17:42:13,379 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 123 states and 142 transitions. cyclomatic complexity: 29 Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) [2021-08-27 17:42:13,915 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 123 states and 142 transitions. cyclomatic complexity: 29. Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) Result 231 states and 265 transitions. Complement of second has 20 states. [2021-08-27 17:42:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 18 states 15 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 17:42:13,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) [2021-08-27 17:42:13,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 88 transitions. [2021-08-27 17:42:13,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 88 transitions. Stem has 52 letters. Loop has 5 letters. [2021-08-27 17:42:13,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:13,921 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 17:42:13,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:13,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 74 conjunts are in the unsatisfiable core [2021-08-27 17:42:13,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:14,018 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 17:42:14,019 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 [2021-08-27 17:42:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:14,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 17:42:14,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:42:15,131 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.15 stem predicates 2 loop predicates [2021-08-27 17:42:15,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 123 states and 142 transitions. cyclomatic complexity: 29 Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) [2021-08-27 17:42:15,806 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 123 states and 142 transitions. cyclomatic complexity: 29. Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) Result 238 states and 274 transitions. Complement of second has 22 states. [2021-08-27 17:42:15,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 19 states 15 stem states 2 non-accepting loop states 2 accepting loop states [2021-08-27 17:42:15,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) [2021-08-27 17:42:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 91 transitions. [2021-08-27 17:42:15,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 91 transitions. Stem has 52 letters. Loop has 5 letters. [2021-08-27 17:42:15,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:15,808 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 17:42:15,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:15,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 74 conjunts are in the unsatisfiable core [2021-08-27 17:42:15,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:15,944 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 17:42:15,945 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 [2021-08-27 17:42:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:16,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 17:42:16,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:42:17,133 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.15 stem predicates 2 loop predicates [2021-08-27 17:42:17,133 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 123 states and 142 transitions. cyclomatic complexity: 29 Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) [2021-08-27 17:42:17,735 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 123 states and 142 transitions. cyclomatic complexity: 29. Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) Result 345 states and 395 transitions. Complement of second has 21 states. [2021-08-27 17:42:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 18 states 15 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 17:42:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) [2021-08-27 17:42:17,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 128 transitions. [2021-08-27 17:42:17,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 128 transitions. Stem has 52 letters. Loop has 5 letters. [2021-08-27 17:42:17,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:17,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 128 transitions. Stem has 57 letters. Loop has 5 letters. [2021-08-27 17:42:17,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:17,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 128 transitions. Stem has 52 letters. Loop has 10 letters. [2021-08-27 17:42:17,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:17,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 345 states and 395 transitions. [2021-08-27 17:42:17,741 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-08-27 17:42:17,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 345 states to 321 states and 370 transitions. [2021-08-27 17:42:17,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2021-08-27 17:42:17,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2021-08-27 17:42:17,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 370 transitions. [2021-08-27 17:42:17,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:42:17,743 INFO L681 BuchiCegarLoop]: Abstraction has 321 states and 370 transitions. [2021-08-27 17:42:17,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 370 transitions. [2021-08-27 17:42:17,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 158. [2021-08-27 17:42:17,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 158 states have (on average 1.1518987341772151) internal successors, (182), 157 states have internal predecessors, (182), 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) [2021-08-27 17:42:17,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 182 transitions. [2021-08-27 17:42:17,746 INFO L704 BuchiCegarLoop]: Abstraction has 158 states and 182 transitions. [2021-08-27 17:42:17,746 INFO L587 BuchiCegarLoop]: Abstraction has 158 states and 182 transitions. [2021-08-27 17:42:17,746 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-08-27 17:42:17,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states and 182 transitions. [2021-08-27 17:42:17,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:42:17,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:42:17,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:42:17,748 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:42:17,748 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 17:42:17,748 INFO L791 eck$LassoCheckResult]: Stem: 6229#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6196#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 6197#L555 assume !(main_~length1~0 < 1); 6233#L555-2 assume !(main_~length2~0 < 1); 6190#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 6191#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 6241#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 6242#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 6225#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 6226#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 6251#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 6247#L564-3 assume !(main_~i~0 < main_~length1~0); 6248#L564-4 main_~i~1 := 0; 6211#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6212#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6213#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6214#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6264#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6265#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6261#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6258#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6257#L568-3 assume !(main_~i~1 < main_~length2~0); 6227#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 6228#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 6207#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 6208#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 6269#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 6209#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 6210#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 6237#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 6238#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 6243#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 6192#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 6193#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 6198#L542-4 goto; 6308#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 6287#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 6285#L543 assume !!(cstrstr_~sc~0 != cstrstr_~c~0); 6236#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 6194#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 6195#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 6224#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 6232#L525 assume !(0 == cstrncmp_~n % 4294967296); 6321#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 6256#L528 assume cstrncmp_#t~mem6 != cstrncmp_#t~mem7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;call cstrncmp_#t~mem9 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, 1);cstrncmp_#res := cstrncmp_#t~mem9 % 256 - cstrncmp_#t~mem10 % 256;havoc cstrncmp_#t~mem9;havoc cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset;havoc cstrncmp_#t~mem10; 6255#L533 cstrstr_#t~ret16 := cstrncmp_#res; 6254#L542-2 assume !!(0 != cstrstr_#t~ret16);havoc cstrstr_#t~ret16; 6253#L542-4 goto; 6246#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 6244#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 6221#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 6222#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 6182#L525 assume !(0 == cstrncmp_~n % 4294967296); 6183#L527-4 [2021-08-27 17:42:17,749 INFO L793 eck$LassoCheckResult]: Loop: 6183#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 6204#L528 assume !(cstrncmp_#t~mem6 != cstrncmp_#t~mem7);havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post11.base, 1 + cstrncmp_#t~post11.offset;call cstrncmp_#t~mem12 := read~int(cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, 1); 6199#L530 assume !(0 == cstrncmp_#t~mem12);havoc cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset;havoc cstrncmp_#t~mem12; 6186#L527-1 cstrncmp_#t~pre4 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 6187#L527-2 assume !!(0 != cstrncmp_#t~pre4 % 4294967296);havoc cstrncmp_#t~pre4; 6183#L527-4 [2021-08-27 17:42:17,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:17,749 INFO L82 PathProgramCache]: Analyzing trace with hash 246220363, now seen corresponding path program 1 times [2021-08-27 17:42:17,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:42:17,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510878455] [2021-08-27 17:42:17,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:42:17,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:42:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-08-27 17:42:17,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:42:17,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510878455] [2021-08-27 17:42:17,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510878455] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:42:17,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070579944] [2021-08-27 17:42:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:42:17,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 17:42:17,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:17,968 INFO L229 MonitoredProcess]: Starting monitored process 128 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 17:42:17,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2021-08-27 17:42:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:18,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 47 conjunts are in the unsatisfiable core [2021-08-27 17:42:18,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:18,894 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-08-27 17:42:18,894 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 27 [2021-08-27 17:42:19,363 INFO L354 Elim1Store]: treesize reduction 8, result has 27.3 percent of original size [2021-08-27 17:42:19,363 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 24 treesize of output 16 [2021-08-27 17:42:19,395 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-08-27 17:42:19,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070579944] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 17:42:19,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 17:42:19,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-08-27 17:42:19,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550077462] [2021-08-27 17:42:19,396 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:42:19,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:19,396 INFO L82 PathProgramCache]: Analyzing trace with hash 118492775, now seen corresponding path program 7 times [2021-08-27 17:42:19,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:42:19,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565389862] [2021-08-27 17:42:19,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:42:19,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:42:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:42:19,402 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:42:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:42:19,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:42:19,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:42:19,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-27 17:42:19,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-08-27 17:42:19,556 INFO L87 Difference]: Start difference. First operand 158 states and 182 transitions. cyclomatic complexity: 35 Second operand has 24 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 24 states have internal predecessors, (80), 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) [2021-08-27 17:42:20,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:42:20,140 INFO L93 Difference]: Finished difference Result 170 states and 192 transitions. [2021-08-27 17:42:20,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 17:42:20,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 192 transitions. [2021-08-27 17:42:20,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:42:20,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 111 states and 127 transitions. [2021-08-27 17:42:20,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-08-27 17:42:20,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-08-27 17:42:20,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 127 transitions. [2021-08-27 17:42:20,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 17:42:20,142 INFO L681 BuchiCegarLoop]: Abstraction has 111 states and 127 transitions. [2021-08-27 17:42:20,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 127 transitions. [2021-08-27 17:42:20,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2021-08-27 17:42:20,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.146788990825688) internal successors, (125), 108 states have internal predecessors, (125), 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) [2021-08-27 17:42:20,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2021-08-27 17:42:20,144 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 125 transitions. [2021-08-27 17:42:20,144 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 125 transitions. [2021-08-27 17:42:20,144 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-08-27 17:42:20,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 125 transitions. [2021-08-27 17:42:20,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 17:42:20,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:42:20,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:42:20,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:42:20,145 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 17:42:20,146 INFO L791 eck$LassoCheckResult]: Stem: 6769#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6733#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~malloc23.base, main_#t~malloc23.offset, main_#t~nondet25, main_#t~post24, main_~i~0, main_#t~nondet27, main_#t~post26, main_~i~1, main_#t~ret28.base, main_#t~ret28.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~length2~0 := main_#t~nondet21;havoc main_#t~nondet21; 6734#L555 assume !(main_~length1~0 < 1); 6772#L555-2 assume !(main_~length2~0 < 1); 6727#L558-1 call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call main_#t~malloc23.base, main_#t~malloc23.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc23.base, main_#t~malloc23.offset;main_~i~0 := 0; 6728#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 6765#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 6766#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 6778#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 6787#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 6786#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 6785#L564-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet25, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet25; 6784#L564-2 main_#t~post24 := main_~i~0;main_~i~0 := 1 + main_#t~post24;havoc main_#t~post24; 6783#L564-3 assume !(main_~i~0 < main_~length1~0); 6770#L564-4 main_~i~1 := 0; 6753#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6754#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6755#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6756#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6826#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6825#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6824#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6823#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6820#L568-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet27, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet27; 6821#L568-2 main_#t~post26 := main_~i~1;main_~i~1 := 1 + main_#t~post26;havoc main_#t~post26; 6822#L568-3 assume !(main_~i~1 < main_~length2~0); 6767#L568-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrstr_#in~s.base, cstrstr_#in~s.offset, cstrstr_#in~find.base, cstrstr_#in~find.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrstr_#res.base, cstrstr_#res.offset;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset, cstrstr_#t~mem14, cstrstr_#t~ret15, cstrstr_#t~post17.base, cstrstr_#t~post17.offset, cstrstr_#t~mem18, cstrstr_#t~ret16, cstrstr_#t~post19.base, cstrstr_#t~post19.offset, cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~c~0, cstrstr_~sc~0, cstrstr_~len~0;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#in~s.base, cstrstr_#in~s.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#in~find.base, cstrstr_#in~find.offset;havoc cstrstr_~c~0;havoc cstrstr_~sc~0;havoc cstrstr_~len~0;cstrstr_#t~post13.base, cstrstr_#t~post13.offset := cstrstr_~find.base, cstrstr_~find.offset;cstrstr_~find.base, cstrstr_~find.offset := cstrstr_#t~post13.base, 1 + cstrstr_#t~post13.offset;call cstrstr_#t~mem14 := read~int(cstrstr_#t~post13.base, cstrstr_#t~post13.offset, 1);cstrstr_~c~0 := cstrstr_#t~mem14; 6768#L540 assume 0 != cstrstr_~c~0;havoc cstrstr_#t~post13.base, cstrstr_#t~post13.offset;havoc cstrstr_#t~mem14;cstrlen_#in~str.base, cstrlen_#in~str.offset := cstrstr_~find.base, cstrstr_~find.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 6745#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 6746#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 6781#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 6815#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 6794#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 6813#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 6792#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 6793#L518-1 assume !(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 6729#L518-5 assume cstrlen_~s~0.base == cstrlen_~str.base;cstrlen_#res := (if cstrlen_~s~0.offset - cstrlen_~str.offset < 0 && 0 != (cstrlen_~s~0.offset - cstrlen_~str.offset) % 1 then 1 + (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1 else (cstrlen_~s~0.offset - cstrlen_~str.offset) / 1); 6730#L520 cstrstr_#t~ret15 := cstrlen_#res;cstrstr_~len~0 := cstrstr_#t~ret15;havoc cstrstr_#t~ret15; 6749#L542-4 goto; 6750#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 6776#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 6795#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 6796#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 6721#L525 assume !(0 == cstrncmp_~n % 4294967296); 6722#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 6788#L528 assume cstrncmp_#t~mem6 != cstrncmp_#t~mem7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;call cstrncmp_#t~mem9 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset - 1;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, 1);cstrncmp_#res := cstrncmp_#t~mem9 % 256 - cstrncmp_#t~mem10 % 256;havoc cstrncmp_#t~mem9;havoc cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset;havoc cstrncmp_#t~mem10; 6789#L533 cstrstr_#t~ret16 := cstrncmp_#res; 6798#L542-2 assume !!(0 != cstrstr_#t~ret16);havoc cstrstr_#t~ret16; 6751#L542-4 goto; 6752#L543-2 cstrstr_#t~post17.base, cstrstr_#t~post17.offset := cstrstr_~s.base, cstrstr_~s.offset;cstrstr_~s.base, cstrstr_~s.offset := cstrstr_#t~post17.base, 1 + cstrstr_#t~post17.offset;call cstrstr_#t~mem18 := read~int(cstrstr_#t~post17.base, cstrstr_#t~post17.offset, 1);cstrstr_~sc~0 := cstrstr_#t~mem18; 6782#L544 assume !(0 == cstrstr_~sc~0);havoc cstrstr_#t~post17.base, cstrstr_#t~post17.offset;havoc cstrstr_#t~mem18; 6761#L543 assume !(cstrstr_~sc~0 != cstrstr_~c~0); 6762#L542-1 cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := cstrstr_~s.base, cstrstr_~s.offset, cstrstr_~find.base, cstrstr_~find.offset, cstrstr_~len~0;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, cstrncmp_#t~mem7, cstrncmp_#t~mem9, cstrncmp_#t~pre8.base, cstrncmp_#t~pre8.offset, cstrncmp_#t~mem10, cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, cstrncmp_#t~mem12, cstrncmp_#t~pre4, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 6719#L525 assume !(0 == cstrncmp_~n % 4294967296); 6720#L527-4 [2021-08-27 17:42:20,146 INFO L793 eck$LassoCheckResult]: Loop: 6720#L527-4 call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post5.base, 1 + cstrncmp_#t~post5.offset;call cstrncmp_#t~mem7 := read~int(cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset, 1); 6742#L528 assume !(cstrncmp_#t~mem6 != cstrncmp_#t~mem7);havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~post5.base, cstrncmp_#t~post5.offset;havoc cstrncmp_#t~mem7;cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post11.base, 1 + cstrncmp_#t~post11.offset;call cstrncmp_#t~mem12 := read~int(cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset, 1); 6737#L530 assume !(0 == cstrncmp_#t~mem12);havoc cstrncmp_#t~post11.base, cstrncmp_#t~post11.offset;havoc cstrncmp_#t~mem12; 6723#L527-1 cstrncmp_#t~pre4 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 6724#L527-2 assume !!(0 != cstrncmp_#t~pre4 % 4294967296);havoc cstrncmp_#t~pre4; 6720#L527-4 [2021-08-27 17:42:20,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:20,146 INFO L82 PathProgramCache]: Analyzing trace with hash -98812213, now seen corresponding path program 4 times [2021-08-27 17:42:20,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:42:20,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17689054] [2021-08-27 17:42:20,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:42:20,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:42:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:42:20,165 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:42:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:42:20,189 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:42:20,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:20,190 INFO L82 PathProgramCache]: Analyzing trace with hash 118492775, now seen corresponding path program 8 times [2021-08-27 17:42:20,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:42:20,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716717318] [2021-08-27 17:42:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:42:20,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:42:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:42:20,195 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:42:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:42:20,197 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:42:20,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:20,198 INFO L82 PathProgramCache]: Analyzing trace with hash 597523933, now seen corresponding path program 3 times [2021-08-27 17:42:20,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:42:20,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377163710] [2021-08-27 17:42:20,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:42:20,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:42:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:42:20,220 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:42:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:42:20,245 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:42:36,865 WARN L207 SmtUtils]: Spent 16.47 s on a formula simplification. DAG size of input: 463 DAG size of output: 353 [2021-08-27 17:42:38,868 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:42:38,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:42:38,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:42:38,868 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:42:38,868 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:42:38,868 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:38,868 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:42:38,868 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:42:38,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrstr-alloca-2.i_Iteration19_Lasso [2021-08-27 17:42:38,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:42:38,868 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:42:38,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:38,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:40,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:42:42,617 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:42:42,617 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:42:42,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,627 INFO L229 MonitoredProcess]: Starting monitored process 129 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) [2021-08-27 17:42:42,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-08-27 17:42:42,629 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 [2021-08-27 17:42:42,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:42,676 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,677 INFO L229 MonitoredProcess]: Starting monitored process 130 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) [2021-08-27 17:42:42,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-08-27 17:42:42,679 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 [2021-08-27 17:42:42,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:42,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,721 INFO L229 MonitoredProcess]: Starting monitored process 131 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) [2021-08-27 17:42:42,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-08-27 17:42:42,723 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 [2021-08-27 17:42:42,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Ended with exit code 0 [2021-08-27 17:42:42,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,747 INFO L229 MonitoredProcess]: Starting monitored process 132 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) [2021-08-27 17:42:42,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-08-27 17:42:42,749 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 [2021-08-27 17:42:42,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,756 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:42,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:42,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Ended with exit code 0 [2021-08-27 17:42:42,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,774 INFO L229 MonitoredProcess]: Starting monitored process 133 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) [2021-08-27 17:42:42,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-08-27 17:42:42,780 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 [2021-08-27 17:42:42,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:42,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,803 INFO L229 MonitoredProcess]: Starting monitored process 134 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) [2021-08-27 17:42:42,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-08-27 17:42:42,805 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 [2021-08-27 17:42:42,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,812 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:42,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,828 INFO L229 MonitoredProcess]: Starting monitored process 135 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) [2021-08-27 17:42:42,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-08-27 17:42:42,830 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 [2021-08-27 17:42:42,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Ended with exit code 0 [2021-08-27 17:42:42,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,853 INFO L229 MonitoredProcess]: Starting monitored process 136 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) [2021-08-27 17:42:42,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-08-27 17:42:42,855 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 [2021-08-27 17:42:42,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:42,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,878 INFO L229 MonitoredProcess]: Starting monitored process 137 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) [2021-08-27 17:42:42,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-08-27 17:42:42,880 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 [2021-08-27 17:42:42,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:42,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,903 INFO L229 MonitoredProcess]: Starting monitored process 138 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) [2021-08-27 17:42:42,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Waiting until timeout for monitored process [2021-08-27 17:42:42,905 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 [2021-08-27 17:42:42,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:42:42,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:42:42,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:42:42,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Ended with exit code 0 [2021-08-27 17:42:42,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,930 INFO L229 MonitoredProcess]: Starting monitored process 139 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) [2021-08-27 17:42:42,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-08-27 17:42:42,932 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 [2021-08-27 17:42:42,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,939 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 17:42:42,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,940 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 17:42:42,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:42,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:42,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:42,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:42,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:42,963 INFO L229 MonitoredProcess]: Starting monitored process 140 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) [2021-08-27 17:42:42,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-08-27 17:42:42,965 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 [2021-08-27 17:42:42,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:42,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:42,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:42,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:42,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:42,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:42,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:43,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Ended with exit code 0 [2021-08-27 17:42:43,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,003 INFO L229 MonitoredProcess]: Starting monitored process 141 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) [2021-08-27 17:42:43,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-08-27 17:42:43,005 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 [2021-08-27 17:42:43,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:43,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:43,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:43,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:43,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:43,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:43,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:43,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Ended with exit code 0 [2021-08-27 17:42:43,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,033 INFO L229 MonitoredProcess]: Starting monitored process 142 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) [2021-08-27 17:42:43,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-08-27 17:42:43,035 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 [2021-08-27 17:42:43,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:43,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:43,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:43,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:43,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:43,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:43,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:43,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:43,093 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,101 INFO L229 MonitoredProcess]: Starting monitored process 143 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) [2021-08-27 17:42:43,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-08-27 17:42:43,103 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 [2021-08-27 17:42:43,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:43,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:43,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:43,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:43,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:43,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:43,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:43,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:43,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,141 INFO L229 MonitoredProcess]: Starting monitored process 144 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) [2021-08-27 17:42:43,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-08-27 17:42:43,143 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 [2021-08-27 17:42:43,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:43,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:43,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:43,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:43,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:43,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:43,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:43,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:43,193 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,199 INFO L229 MonitoredProcess]: Starting monitored process 145 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) [2021-08-27 17:42:43,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-08-27 17:42:43,201 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 [2021-08-27 17:42:43,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:43,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:43,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:43,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:43,210 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:43,210 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:43,228 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:43,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:43,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,246 INFO L229 MonitoredProcess]: Starting monitored process 146 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) [2021-08-27 17:42:43,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-08-27 17:42:43,248 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 [2021-08-27 17:42:43,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:43,255 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-08-27 17:42:43,255 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 17:42:43,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:43,285 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2021-08-27 17:42:43,286 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 17:42:43,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:43,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:43,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,336 INFO L229 MonitoredProcess]: Starting monitored process 147 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) [2021-08-27 17:42:43,345 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 [2021-08-27 17:42:43,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:43,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:43,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:43,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:43,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:43,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:43,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-08-27 17:42:43,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:42:43,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Ended with exit code 0 [2021-08-27 17:42:43,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,373 INFO L229 MonitoredProcess]: Starting monitored process 148 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) [2021-08-27 17:42:43,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-08-27 17:42:43,376 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 [2021-08-27 17:42:43,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:42:43,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:42:43,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:42:43,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:42:43,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:42:43,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:42:43,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:42:43,461 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-08-27 17:42:43,461 INFO L444 ModelExtractionUtils]: 47 out of 88 variables were initially zero. Simplification set additionally 38 variables to zero. [2021-08-27 17:42:43,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:42:43,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:42:43,462 INFO L229 MonitoredProcess]: Starting monitored process 149 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) [2021-08-27 17:42:43,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-08-27 17:42:43,464 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:42:43,471 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 17:42:43,471 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:42:43,471 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_4, ULTIMATE.start_cstrncmp_~s2.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_4 - 1*ULTIMATE.start_cstrncmp_~s2.offset Supporting invariants [] [2021-08-27 17:42:43,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Ended with exit code 0 [2021-08-27 17:42:43,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:43,834 INFO L297 tatePredicateManager]: 84 out of 86 supporting invariants were superfluous and have been removed [2021-08-27 17:42:43,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:43,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 17:42:43,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:44,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 17:42:44,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:42:44,363 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-08-27 17:42:44,363 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 125 transitions. cyclomatic complexity: 24 Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-08-27 17:42:44,410 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 125 transitions. cyclomatic complexity: 24. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 123 states and 139 transitions. Complement of second has 8 states. [2021-08-27 17:42:44,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 17:42:44,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-08-27 17:42:44,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2021-08-27 17:42:44,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 35 transitions. Stem has 54 letters. Loop has 5 letters. [2021-08-27 17:42:44,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:44,411 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 17:42:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:44,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 17:42:44,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:44,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 17:42:44,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:42:44,947 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2021-08-27 17:42:44,948 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 125 transitions. cyclomatic complexity: 24 Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-08-27 17:42:45,017 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 125 transitions. cyclomatic complexity: 24. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 146 states and 170 transitions. Complement of second has 10 states. [2021-08-27 17:42:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 17:42:45,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-08-27 17:42:45,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 42 transitions. [2021-08-27 17:42:45,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 54 letters. Loop has 5 letters. [2021-08-27 17:42:45,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:45,018 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 17:42:45,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:42:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:45,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 17:42:45,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:42:45,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 17:42:45,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:42:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:42:45,541 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-08-27 17:42:45,541 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 125 transitions. cyclomatic complexity: 24 Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-08-27 17:42:45,597 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 125 transitions. cyclomatic complexity: 24. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 133 states and 149 transitions. Complement of second has 7 states. [2021-08-27 17:42:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 17:42:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-08-27 17:42:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2021-08-27 17:42:45,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 54 letters. Loop has 5 letters. [2021-08-27 17:42:45,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:45,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 59 letters. Loop has 5 letters. [2021-08-27 17:42:45,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:45,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 54 letters. Loop has 10 letters. [2021-08-27 17:42:45,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:42:45,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 149 transitions. [2021-08-27 17:42:45,600 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:42:45,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 0 states and 0 transitions. [2021-08-27 17:42:45,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 17:42:45,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 17:42:45,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 17:42:45,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:42:45,602 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:42:45,602 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:42:45,602 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:42:45,602 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-08-27 17:42:45,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 17:42:45,602 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:42:45,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 17:42:45,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 05:42:45 BoogieIcfgContainer [2021-08-27 17:42:45,606 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 17:42:45,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 17:42:45,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 17:42:45,607 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 17:42:45,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:39:03" (3/4) ... [2021-08-27 17:42:45,609 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 17:42:45,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 17:42:45,610 INFO L168 Benchmark]: Toolchain (without parser) took 223208.00 ms. Allocated memory was 50.3 MB in the beginning and 362.8 MB in the end (delta: 312.5 MB). Free memory was 26.9 MB in the beginning and 123.5 MB in the end (delta: -96.6 MB). Peak memory consumption was 214.6 MB. Max. memory is 16.1 GB. [2021-08-27 17:42:45,610 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 32.9 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:42:45,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.02 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.6 MB in the beginning and 41.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-08-27 17:42:45,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.20 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 38.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:42:45,614 INFO L168 Benchmark]: Boogie Preprocessor took 33.22 ms. Allocated memory is still 62.9 MB. Free memory was 38.8 MB in the beginning and 37.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:42:45,614 INFO L168 Benchmark]: RCFGBuilder took 422.96 ms. Allocated memory is still 62.9 MB. Free memory was 37.2 MB in the beginning and 28.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-08-27 17:42:45,614 INFO L168 Benchmark]: BuchiAutomizer took 222390.97 ms. Allocated memory was 62.9 MB in the beginning and 362.8 MB in the end (delta: 299.9 MB). Free memory was 28.0 MB in the beginning and 124.5 MB in the end (delta: -96.5 MB). Peak memory consumption was 204.0 MB. Max. memory is 16.1 GB. [2021-08-27 17:42:45,614 INFO L168 Benchmark]: Witness Printer took 2.53 ms. Allocated memory is still 362.8 MB. Free memory was 124.5 MB in the beginning and 123.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:42:45,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 32.9 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 316.02 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.6 MB in the beginning and 41.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.20 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 38.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.22 ms. Allocated memory is still 62.9 MB. Free memory was 38.8 MB in the beginning and 37.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 422.96 ms. Allocated memory is still 62.9 MB. Free memory was 37.2 MB in the beginning and 28.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 222390.97 ms. Allocated memory was 62.9 MB in the beginning and 362.8 MB in the end (delta: 299.9 MB). Free memory was 28.0 MB in the beginning and 124.5 MB in the end (delta: -96.5 MB). Peak memory consumption was 204.0 MB. Max. memory is 16.1 GB. * Witness Printer took 2.53 ms. Allocated memory is still 362.8 MB. Free memory was 124.5 MB in the beginning and 123.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 19 terminating modules (12 trivial, 5 deterministic, 2 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 length2 + -1 * i and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * s and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * s and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * s1 and consists of 7 locations. One nondeterministic module has affine ranking function 5 * unknown-#length-unknown[nondetString1] + -6 * s2 + 8 * s and consists of 18 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * s2 and consists of 6 locations. 12 modules have a trivial ranking function, the largest among these consists of 29 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 222.3s and 20 iterations. TraceHistogramMax:5. Analysis of lassos took 101.3s. Construction of modules took 1.9s. Büchi inclusion checks took 118.8s. Highest rank in rank-based complementation 3. Minimization of det autom 7. Minimization of nondet autom 12. Automata minimization 45.6ms AutomataMinimizationTime, 18 MinimizatonAttempts, 349 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 158 states and ocurred in iteration 17. Nontrivial modules had stage [5, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 749 SDtfs, 2520 SDslu, 4193 SDs, 0 SdLazy, 3079 SolverSat, 390 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1909.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc5 concLT0 SILN0 SILU6 SILI0 SILT0 lasso7 LassoPreprocessingBenchmarks: Lassos: inital448 mio100 ax106 hnf99 lsp91 ukn59 mio100 lsp52 div109 bol100 ite100 ukn100 eq188 hnf86 smp92 dnf142 smp85 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 71ms VariablesStem: 12 VariablesLoop: 4 DisjunctsStem: 4 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 28 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! [2021-08-27 17:42:45,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Ended with exit code 0 [2021-08-27 17:42:45,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:46,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2021-08-27 17:42:46,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:46,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2021-08-27 17:42:46,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-08-27 17:42:46,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-08-27 17:42:47,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-08-27 17:42:47,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...