./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash c10d45b5c95e322c3a9476f6a89ce233987fcc3d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:47:57,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:47:57,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:47:57,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:47:57,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:47:57,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:47:57,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:47:57,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:47:57,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:47:57,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:47:57,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:47:57,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:47:57,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:47:57,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:47:57,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:47:57,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:47:57,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:47:57,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:47:57,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:47:57,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:47:57,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:47:57,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:47:57,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:47:57,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:47:57,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:47:57,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:47:57,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:47:57,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:47:57,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:47:57,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:47:57,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:47:57,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:47:57,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:47:57,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:47:57,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:47:57,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:47:57,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:47:57,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:47:57,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:47:57,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:47:57,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:47:57,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:47:57,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:47:57,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:47:57,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:47:57,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:47:57,276 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:47:57,276 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:47:57,276 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:47:57,277 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:47:57,277 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:47:57,277 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:47:57,279 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:47:57,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:47:57,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:47:57,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:47:57,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:47:57,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:47:57,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:47:57,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:47:57,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:47:57,282 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:47:57,282 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:47:57,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:47:57,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:47:57,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:47:57,283 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:47:57,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:47:57,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:47:57,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:47:57,284 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:47:57,286 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:47:57,286 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c10d45b5c95e322c3a9476f6a89ce233987fcc3d [2020-10-19 18:47:57,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:47:57,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:47:57,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:47:57,649 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:47:57,650 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:47:57,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2020-10-19 18:47:57,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa201f0/639b8645e14646fd9e98e7808a8a07b2/FLAG7cd7f2875 [2020-10-19 18:47:58,295 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:47:58,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2020-10-19 18:47:58,319 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa201f0/639b8645e14646fd9e98e7808a8a07b2/FLAG7cd7f2875 [2020-10-19 18:47:58,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa201f0/639b8645e14646fd9e98e7808a8a07b2 [2020-10-19 18:47:58,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:47:58,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:47:58,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:47:58,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:47:58,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:47:58,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:47:58" (1/1) ... [2020-10-19 18:47:58,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b91871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:58, skipping insertion in model container [2020-10-19 18:47:58,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:47:58" (1/1) ... [2020-10-19 18:47:58,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:47:58,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:47:58,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:47:58,943 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:47:58,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:47:59,039 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:47:59,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59 WrapperNode [2020-10-19 18:47:59,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:47:59,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:47:59,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:47:59,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:47:59,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:47:59,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:47:59,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:47:59,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:47:59,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... [2020-10-19 18:47:59,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:47:59,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:47:59,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:47:59,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:47:59,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:47:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:47:59,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:47:59,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:47:59,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:47:59,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:47:59,592 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:47:59,592 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-19 18:47:59,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:47:59 BoogieIcfgContainer [2020-10-19 18:47:59,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:47:59,595 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:47:59,595 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:47:59,602 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:47:59,603 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:47:59,603 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:47:58" (1/3) ... [2020-10-19 18:47:59,605 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67d7834c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:47:59, skipping insertion in model container [2020-10-19 18:47:59,605 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:47:59,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:59" (2/3) ... [2020-10-19 18:47:59,606 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67d7834c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:47:59, skipping insertion in model container [2020-10-19 18:47:59,607 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:47:59,607 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:47:59" (3/3) ... [2020-10-19 18:47:59,609 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrpbrk-alloca-1.i [2020-10-19 18:47:59,663 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:47:59,663 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:47:59,664 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:47:59,664 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:47:59,665 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:47:59,665 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:47:59,665 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:47:59,665 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:47:59,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 18:47:59,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:47:59,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:47:59,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:47:59,713 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 18:47:59,713 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:47:59,713 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:47:59,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 18:47:59,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:47:59,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:47:59,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:47:59,716 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 18:47:59,716 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:47:59,725 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 10#L562true assume !(main_~length1~0 < 1); 14#L562-2true assume !(main_~length2~0 < 1); 6#L565-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 16#L553-4true [2020-10-19 18:47:59,726 INFO L796 eck$LassoCheckResult]: Loop: 16#L553-4true cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 11#L552-1true assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 13#L553-3true assume !true; 16#L553-4true [2020-10-19 18:47:59,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:59,733 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-19 18:47:59,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:59,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890860028] [2020-10-19 18:47:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:59,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:59,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:59,912 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:47:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:59,914 INFO L82 PathProgramCache]: Analyzing trace with hash 49828, now seen corresponding path program 1 times [2020-10-19 18:47:59,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:59,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941518634] [2020-10-19 18:47:59,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:47:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:47:59,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941518634] [2020-10-19 18:47:59,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:47:59,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:47:59,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730411418] [2020-10-19 18:47:59,981 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:47:59,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:48:00,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:48:00,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:48:00,005 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-10-19 18:48:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:48:00,020 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2020-10-19 18:48:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:48:00,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-10-19 18:48:00,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:48:00,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2020-10-19 18:48:00,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 18:48:00,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 18:48:00,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-10-19 18:48:00,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:48:00,042 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-19 18:48:00,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-10-19 18:48:00,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-19 18:48:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-19 18:48:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-10-19 18:48:00,083 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-19 18:48:00,083 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-19 18:48:00,084 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:48:00,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-10-19 18:48:00,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:48:00,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:00,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:00,088 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 18:48:00,089 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 18:48:00,089 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 39#L562 assume !(main_~length1~0 < 1); 45#L562-2 assume !(main_~length2~0 < 1); 40#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 41#L553-4 [2020-10-19 18:48:00,090 INFO L796 eck$LassoCheckResult]: Loop: 41#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 46#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 47#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 43#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~mem5;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset; 41#L553-4 [2020-10-19 18:48:00,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:00,091 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2020-10-19 18:48:00,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:00,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935420036] [2020-10-19 18:48:00,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:00,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:00,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:00,163 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:00,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:00,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1544297, now seen corresponding path program 1 times [2020-10-19 18:48:00,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:00,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890899470] [2020-10-19 18:48:00,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:00,174 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:00,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:00,186 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:00,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:00,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1298350894, now seen corresponding path program 1 times [2020-10-19 18:48:00,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:00,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110627440] [2020-10-19 18:48:00,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:00,213 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:00,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:00,255 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:00,381 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-19 18:48:00,785 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-10-19 18:48:00,904 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-19 18:48:00,916 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:48:00,917 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:48:00,917 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:48:00,917 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:48:00,918 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:48:00,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:00,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:48:00,918 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:48:00,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration2_Lasso [2020-10-19 18:48:00,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:48:00,919 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:48:00,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:00,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:01,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:01,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:01,423 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-19 18:48:01,555 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-10-19 18:48:01,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:01,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:01,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:01,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:01,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:01,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:02,077 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:48:02,083 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,104 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:02,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:02,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,373 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,410 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:02,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:02,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:02,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:02,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:02,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:02,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:02,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:02,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:02,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:02,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:02,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:02,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:02,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:02,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:02,607 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:48:02,723 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-19 18:48:02,723 INFO L444 ModelExtractionUtils]: 5 out of 25 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:02,733 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:48:02,740 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:48:02,740 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:48:02,742 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrpbrk_~s1.base)_1, ULTIMATE.start_cstrpbrk_~s1.offset) = 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~s1.base)_1 - 1*ULTIMATE.start_cstrpbrk_~s1.offset Supporting invariants [] [2020-10-19 18:48:02,815 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-10-19 18:48:02,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 18:48:02,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:02,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:48:02,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:02,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:48:02,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:02,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:02,952 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:48:02,953 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-10-19 18:48:02,991 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 20 transitions. Complement of second has 4 states. [2020-10-19 18:48:02,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:48:02,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:48:02,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2020-10-19 18:48:02,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-19 18:48:02,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:02,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2020-10-19 18:48:02,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:02,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 8 letters. [2020-10-19 18:48:02,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:02,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2020-10-19 18:48:03,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:03,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 19 transitions. [2020-10-19 18:48:03,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 18:48:03,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 18:48:03,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2020-10-19 18:48:03,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:48:03,003 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-10-19 18:48:03,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2020-10-19 18:48:03,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-10-19 18:48:03,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-19 18:48:03,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2020-10-19 18:48:03,005 INFO L714 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-10-19 18:48:03,005 INFO L594 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-10-19 18:48:03,006 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:48:03,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2020-10-19 18:48:03,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:03,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:03,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:03,008 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:48:03,008 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:48:03,008 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 149#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 150#L562 assume !(main_~length1~0 < 1); 157#L562-2 assume !(main_~length2~0 < 1); 147#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 148#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 158#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 160#L553-3 [2020-10-19 18:48:03,008 INFO L796 eck$LassoCheckResult]: Loop: 160#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 152#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~mem5;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset; 153#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 160#L553-3 [2020-10-19 18:48:03,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:03,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935627, now seen corresponding path program 1 times [2020-10-19 18:48:03,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:03,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568508949] [2020-10-19 18:48:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:03,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:03,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:03,049 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:03,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:03,050 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 1 times [2020-10-19 18:48:03,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:03,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647171752] [2020-10-19 18:48:03,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:03,057 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:03,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:03,062 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:03,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1594172151, now seen corresponding path program 1 times [2020-10-19 18:48:03,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:03,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144992446] [2020-10-19 18:48:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:03,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:03,099 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:03,104 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:03,573 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 101 [2020-10-19 18:48:03,728 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-19 18:48:03,730 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:48:03,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:48:03,731 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:48:03,731 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:48:03,731 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:48:03,731 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:03,731 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:48:03,731 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:48:03,731 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration3_Lasso [2020-10-19 18:48:03,731 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:48:03,731 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:48:03,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:03,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:03,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:03,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:03,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:03,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,051 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-19 18:48:04,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:04,711 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:48:04,711 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:04,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:04,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:04,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:04,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:04,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:04,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:04,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:04,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:04,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:04,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:04,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:04,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:04,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:04,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:04,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:04,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:04,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:04,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:04,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:04,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:04,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:04,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:04,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:04,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:04,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:04,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:04,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:04,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:04,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:04,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:04,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:04,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:04,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:04,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:04,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:04,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:04,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:04,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:04,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:04,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:04,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:04,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:04,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:04,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:04,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:04,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:04,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:04,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:04,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:04,909 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:04,909 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:04,929 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:04,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:04,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:04,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:04,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:04,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:04,977 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:04,977 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:04,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:05,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:05,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:05,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:05,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:05,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:05,066 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:05,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:05,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:05,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:05,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:05,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:05,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:05,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:05,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:05,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:05,111 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:05,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:05,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:05,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:05,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:05,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:05,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:05,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:05,153 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:05,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:05,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:05,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:05,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:05,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:05,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:05,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:05,193 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:05,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:05,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:05,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:05,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:05,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:05,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:05,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:05,237 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:05,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:05,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:05,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:05,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:05,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:05,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:05,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:05,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:05,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:05,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:05,306 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 18:48:05,307 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2020-10-19 18:48:05,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:05,349 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2020-10-19 18:48:05,349 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2020-10-19 18:48:05,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:05,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:05,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:05,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:05,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:05,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:05,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:05,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:05,480 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:48:05,547 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2020-10-19 18:48:05,547 INFO L444 ModelExtractionUtils]: 10 out of 37 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:05,550 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:05,554 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:48:05,554 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:48:05,554 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2020-10-19 18:48:05,629 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2020-10-19 18:48:05,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 18:48:05,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:05,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:48:05,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:05,699 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:48:05,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:05,728 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 [2020-10-19 18:48:05,728 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-19 18:48:05,773 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 31 states and 38 transitions. Complement of second has 6 states. [2020-10-19 18:48:05,774 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 [2020-10-19 18:48:05,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:48:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-19 18:48:05,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-19 18:48:05,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:05,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-19 18:48:05,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:05,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-19 18:48:05,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:05,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2020-10-19 18:48:05,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:05,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 27 transitions. [2020-10-19 18:48:05,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 18:48:05,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-19 18:48:05,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2020-10-19 18:48:05,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:48:05,782 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2020-10-19 18:48:05,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2020-10-19 18:48:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2020-10-19 18:48:05,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 18:48:05,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2020-10-19 18:48:05,784 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-10-19 18:48:05,785 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-10-19 18:48:05,785 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:48:05,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2020-10-19 18:48:05,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:05,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:05,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:05,787 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:48:05,787 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:48:05,787 INFO L794 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 303#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 304#L562 assume !(main_~length1~0 < 1); 313#L562-2 assume !(main_~length2~0 < 1); 305#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 306#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 314#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 315#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 310#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~mem5;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset; 311#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 317#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 316#L553-3 [2020-10-19 18:48:05,787 INFO L796 eck$LassoCheckResult]: Loop: 316#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 308#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~mem5;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset; 309#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 316#L553-3 [2020-10-19 18:48:05,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:05,788 INFO L82 PathProgramCache]: Analyzing trace with hash -2120273357, now seen corresponding path program 2 times [2020-10-19 18:48:05,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:05,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928924579] [2020-10-19 18:48:05,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:05,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:05,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:05,828 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:05,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:05,829 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 2 times [2020-10-19 18:48:05,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:05,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831738430] [2020-10-19 18:48:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:05,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:05,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:05,839 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:05,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1020472847, now seen corresponding path program 1 times [2020-10-19 18:48:05,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:05,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037108486] [2020-10-19 18:48:05,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:05,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:05,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037108486] [2020-10-19 18:48:05,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992848814] [2020-10-19 18:48:05,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:48:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:05,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 42 conjunts are in the unsatisfiable core [2020-10-19 18:48:05,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:06,033 INFO L350 Elim1Store]: treesize reduction 38, result has 20.8 percent of original size [2020-10-19 18:48:06,033 INFO L384 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 35 treesize of output 20 [2020-10-19 18:48:06,034 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:06,041 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:06,043 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-19 18:48:06,044 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:39, output treesize:23 [2020-10-19 18:48:06,402 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 9 [2020-10-19 18:48:06,430 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-19 18:48:06,431 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:06,433 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:06,433 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:06,433 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2020-10-19 18:48:06,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:06,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:48:06,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-10-19 18:48:06,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086715532] [2020-10-19 18:48:06,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:48:06,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:48:06,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:48:06,476 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 12 states. [2020-10-19 18:48:06,744 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2020-10-19 18:48:06,966 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 15 [2020-10-19 18:48:07,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:48:07,358 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-10-19 18:48:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:48:07,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2020-10-19 18:48:07,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:07,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 24 states and 28 transitions. [2020-10-19 18:48:07,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-19 18:48:07,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-19 18:48:07,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2020-10-19 18:48:07,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:48:07,363 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-10-19 18:48:07,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2020-10-19 18:48:07,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2020-10-19 18:48:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 18:48:07,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2020-10-19 18:48:07,365 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-10-19 18:48:07,365 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-10-19 18:48:07,365 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 18:48:07,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2020-10-19 18:48:07,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:07,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:07,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:07,367 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:48:07,367 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:48:07,367 INFO L794 eck$LassoCheckResult]: Stem: 418#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 414#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 415#L562 assume !(main_~length1~0 < 1); 423#L562-2 assume !(main_~length2~0 < 1); 416#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 417#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 424#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 425#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 421#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~mem5;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset; 422#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 429#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 430#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~mem5;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset; 427#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 428#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 426#L553-3 [2020-10-19 18:48:07,367 INFO L796 eck$LassoCheckResult]: Loop: 426#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 419#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~mem5;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset; 420#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 426#L553-3 [2020-10-19 18:48:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:07,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1095399647, now seen corresponding path program 2 times [2020-10-19 18:48:07,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:07,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472555557] [2020-10-19 18:48:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:07,385 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:07,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:07,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:07,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:07,407 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 3 times [2020-10-19 18:48:07,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:07,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088849980] [2020-10-19 18:48:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:07,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:07,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:07,414 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:07,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:07,415 INFO L82 PathProgramCache]: Analyzing trace with hash -110602269, now seen corresponding path program 3 times [2020-10-19 18:48:07,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:07,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88263400] [2020-10-19 18:48:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:07,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:07,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:07,452 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:08,407 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 162 [2020-10-19 18:48:08,656 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-19 18:48:08,660 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:48:08,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:48:08,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:48:08,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:48:08,660 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:48:08,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:08,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:48:08,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:48:08,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration5_Lasso [2020-10-19 18:48:08,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:48:08,661 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:48:08,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:08,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:08,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,247 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2020-10-19 18:48:09,372 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-10-19 18:48:09,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:09,593 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-10-19 18:48:10,543 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-19 18:48:10,687 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:48:10,688 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:10,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:10,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:10,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:10,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:10,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:10,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:10,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:10,705 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:10,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:10,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:10,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:10,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:10,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:10,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:10,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:10,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:10,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:10,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:10,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:10,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:10,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:10,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:10,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:10,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:10,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:10,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:10,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:10,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:10,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:10,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:10,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:10,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:10,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:10,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:10,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:10,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:10,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:10,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:10,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:10,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:10,872 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:10,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:10,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:10,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:10,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:10,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:10,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:10,899 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:10,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:10,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:10,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:10,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:10,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:10,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:10,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:10,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:10,965 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:48:10,993 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-10-19 18:48:10,993 INFO L444 ModelExtractionUtils]: 37 out of 49 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:10,995 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:48:10,997 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:48:10,997 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:48:10,997 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2020-10-19 18:48:11,150 INFO L297 tatePredicateManager]: 30 out of 32 supporting invariants were superfluous and have been removed [2020-10-19 18:48:11,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 18:48:11,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:11,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:48:11,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:11,233 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:48:11,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:11,260 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 [2020-10-19 18:48:11,260 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-19 18:48:11,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2020-10-19 18:48:11,304 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 [2020-10-19 18:48:11,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:48:11,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-19 18:48:11,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2020-10-19 18:48:11,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:11,305 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:48:11,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:11,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:48:11,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:11,387 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:48:11,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:11,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:11,418 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-19 18:48:11,419 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-19 18:48:11,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 29 states and 36 transitions. Complement of second has 6 states. [2020-10-19 18:48:11,471 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 [2020-10-19 18:48:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:48:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-10-19 18:48:11,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2020-10-19 18:48:11,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:11,472 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:48:11,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:11,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:48:11,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:11,545 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:48:11,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:11,582 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-19 18:48:11,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-19 18:48:11,623 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 24 states and 29 transitions. Complement of second has 5 states. [2020-10-19 18:48:11,624 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 [2020-10-19 18:48:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:48:11,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-10-19 18:48:11,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 14 letters. Loop has 3 letters. [2020-10-19 18:48:11,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:11,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 17 letters. Loop has 3 letters. [2020-10-19 18:48:11,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:11,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 14 letters. Loop has 6 letters. [2020-10-19 18:48:11,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:11,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2020-10-19 18:48:11,629 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:48:11,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-10-19 18:48:11,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:48:11,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:48:11,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:48:11,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:48:11,629 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:48:11,629 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:48:11,629 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:48:11,629 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 18:48:11,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:48:11,630 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:48:11,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:48:11,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:48:11 BoogieIcfgContainer [2020-10-19 18:48:11,637 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:48:11,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:48:11,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:48:11,637 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:48:11,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:47:59" (3/4) ... [2020-10-19 18:48:11,642 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:48:11,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:48:11,644 INFO L168 Benchmark]: Toolchain (without parser) took 13154.20 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.5 MB). Free memory was 957.3 MB in the beginning and 905.3 MB in the end (delta: 52.0 MB). Peak memory consumption was 375.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:11,644 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:48:11,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:11,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:48:11,646 INFO L168 Benchmark]: Boogie Preprocessor took 28.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:11,646 INFO L168 Benchmark]: RCFGBuilder took 475.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:11,647 INFO L168 Benchmark]: BuchiAutomizer took 12041.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 191.4 MB). Free memory was 1.1 GB in the beginning and 905.3 MB in the end (delta: 181.8 MB). Peak memory consumption was 373.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:11,647 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 1.4 GB. Free memory is still 905.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:48:11,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 543.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 475.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12041.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 191.4 MB). Free memory was 1.1 GB in the beginning and 905.3 MB in the end (delta: 181.8 MB). Peak memory consumption was 373.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.73 ms. Allocated memory is still 1.4 GB. Free memory is still 905.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s1] + -1 * s1 and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * scanp and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * scanp and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 10.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 86 SDtfs, 88 SDslu, 82 SDs, 0 SdLazy, 112 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital225 mio100 ax108 hnf99 lsp89 ukn78 mio100 lsp36 div100 bol100 ite100 ukn100 eq193 hnf88 smp96 dnf237 smp90 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 111ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 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! Received shutdown request...