./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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/array-memsafety/cstrcat-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c15bd857267d499e7ecc6e455c2b5fbe7515d7da ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 08:17:56,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:17:56,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:17:56,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:17:56,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:17:56,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:17:56,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:17:56,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:17:56,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:17:56,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:17:56,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:17:56,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:17:56,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:17:56,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:17:56,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:17:56,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:17:56,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:17:56,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:17:56,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:17:56,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:17:56,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:17:56,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:17:56,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:17:56,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:17:56,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:17:56,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:17:56,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:17:56,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:17:56,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:17:56,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:17:56,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:17:56,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:17:56,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:17:56,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:17:56,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:17:56,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:17:56,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:17:56,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:17:56,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:17:56,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:17:56,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:17:56,135 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:17:56,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:17:56,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:17:56,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:17:56,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:17:56,199 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:17:56,200 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:17:56,202 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:17:56,202 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:17:56,202 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:17:56,203 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:17:56,203 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:17:56,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:17:56,204 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:17:56,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:17:56,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:17:56,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:17:56,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:17:56,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:17:56,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:17:56,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:17:56,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:17:56,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:17:56,209 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:17:56,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:17:56,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:17:56,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:17:56,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:17:56,210 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:17:56,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:17:56,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:17:56,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:17:56,212 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:17:56,213 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:17:56,213 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c15bd857267d499e7ecc6e455c2b5fbe7515d7da [2020-10-20 08:17:56,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:17:56,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:17:56,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:17:56,449 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:17:56,449 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:17:56,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2020-10-20 08:17:56,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6611179a1/6ef011a17200438c82473a271fa2e4b3/FLAG4ad5bdf74 [2020-10-20 08:17:57,082 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:17:57,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2020-10-20 08:17:57,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6611179a1/6ef011a17200438c82473a271fa2e4b3/FLAG4ad5bdf74 [2020-10-20 08:17:57,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6611179a1/6ef011a17200438c82473a271fa2e4b3 [2020-10-20 08:17:57,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:17:57,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:17:57,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:17:57,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:17:57,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:17:57,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:57,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd4b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57, skipping insertion in model container [2020-10-20 08:17:57,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:57,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:17:57,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:17:57,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:17:57,832 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:17:57,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:17:57,968 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:17:57,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57 WrapperNode [2020-10-20 08:17:57,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:17:57,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:17:57,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:17:57,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:17:57,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:17:58,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:17:58,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:17:58,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:17:58,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (1/1) ... [2020-10-20 08:17:58,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:17:58,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:17:58,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:17:58,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:17:58,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (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 [2020-10-20 08:17:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 08:17:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 08:17:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:17:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 08:17:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:17:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:17:58,495 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:17:58,496 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 08:17:58,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:17:58 BoogieIcfgContainer [2020-10-20 08:17:58,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:17:58,498 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:17:58,499 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:17:58,502 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:17:58,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:17:58,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:17:57" (1/3) ... [2020-10-20 08:17:58,505 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fd947ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:17:58, skipping insertion in model container [2020-10-20 08:17:58,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:17:58,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:57" (2/3) ... [2020-10-20 08:17:58,506 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fd947ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:17:58, skipping insertion in model container [2020-10-20 08:17:58,506 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:17:58,506 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:17:58" (3/3) ... [2020-10-20 08:17:58,508 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrcat-alloca-2.i [2020-10-20 08:17:58,562 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:17:58,562 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:17:58,563 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:17:58,563 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:17:58,563 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:17:58,563 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:17:58,563 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:17:58,564 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:17:58,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-10-20 08:17:58,599 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-20 08:17:58,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:17:58,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:17:58,607 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 08:17:58,608 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:17:58,608 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:17:58,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-10-20 08:17:58,610 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-20 08:17:58,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:17:58,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:17:58,612 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 08:17:58,612 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:17:58,620 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 23#L527true assume !(main_~length1~0 < 1); 7#L527-2true assume !(main_~length2~0 < 2); 19#L530-1true assume !(main_~length3~0 < 1); 11#L533-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 5#L540-3true [2020-10-20 08:17:58,621 INFO L796 eck$LassoCheckResult]: Loop: 5#L540-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet13, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet13; 22#L540-2true main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 5#L540-3true [2020-10-20 08:17:58,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:58,628 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2020-10-20 08:17:58,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:17:58,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226485490] [2020-10-20 08:17:58,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:17:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:58,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:58,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:58,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:17:58,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:58,805 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2020-10-20 08:17:58,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:17:58,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421713591] [2020-10-20 08:17:58,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:17:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:58,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:58,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:58,840 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:17:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:58,842 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2020-10-20 08:17:58,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:17:58,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626207630] [2020-10-20 08:17:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:17:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:58,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:58,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:58,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:17:59,249 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-20 08:17:59,357 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:17:59,358 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:17:59,358 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:17:59,358 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:17:59,358 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:17:59,359 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:59,359 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:17:59,359 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:17:59,359 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration1_Lasso [2020-10-20 08:17:59,359 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:17:59,360 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:17:59,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,581 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-10-20 08:17:59,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:17:59,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:00,018 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:00,024 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) [2020-10-20 08:18:00,038 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 [2020-10-20 08:18:00,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:00,049 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) [2020-10-20 08:18:00,099 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 [2020-10-20 08:18:00,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:00,105 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 [2020-10-20 08:18:00,153 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 [2020-10-20 08:18:00,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:00,159 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 [2020-10-20 08:18:00,198 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 [2020-10-20 08:18:00,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:00,206 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:00,210 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) [2020-10-20 08:18:00,248 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 [2020-10-20 08:18:00,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:00,258 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) [2020-10-20 08:18:00,296 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 [2020-10-20 08:18:00,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,301 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:00,302 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 [2020-10-20 08:18:00,311 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 [2020-10-20 08:18:00,337 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 [2020-10-20 08:18:00,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:00,342 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 [2020-10-20 08:18:00,378 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 [2020-10-20 08:18:00,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:00,382 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 [2020-10-20 08:18:00,407 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 [2020-10-20 08:18:00,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:00,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:00,418 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 [2020-10-20 08:18:00,457 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 [2020-10-20 08:18:00,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:00,472 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) [2020-10-20 08:18:00,524 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 [2020-10-20 08:18:00,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:00,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:00,529 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) [2020-10-20 08:18:00,580 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 [2020-10-20 08:18:00,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:00,585 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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:00,624 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 [2020-10-20 08:18:00,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:00,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:00,637 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 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 [2020-10-20 08:18:00,667 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 [2020-10-20 08:18:00,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:00,672 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:00,695 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 [2020-10-20 08:18:00,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:00,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:00,722 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 [2020-10-20 08:18:00,755 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 [2020-10-20 08:18:00,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:00,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:00,774 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 [2020-10-20 08:18:00,808 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 [2020-10-20 08:18:00,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:00,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:00,823 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 [2020-10-20 08:18:00,876 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 [2020-10-20 08:18:00,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:00,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:00,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:00,881 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 [2020-10-20 08:18:00,928 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 [2020-10-20 08:18:00,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:00,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:00,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:00,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:00,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:00,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:00,957 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:01,095 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-20 08:18:01,096 INFO L444 ModelExtractionUtils]: 17 out of 31 variables were initially zero. Simplification set additionally 11 variables to zero. 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) [2020-10-20 08:18:01,160 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:01,175 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:18:01,176 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:01,176 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-20 08:18:01,223 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-20 08:18:01,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:01,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:18:01,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:01,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:18:01,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:01,361 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 [2020-10-20 08:18:01,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 3 states. [2020-10-20 08:18:01,434 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 3 states. Result 52 states and 74 transitions. Complement of second has 7 states. [2020-10-20 08:18:01,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 08:18:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:18:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2020-10-20 08:18:01,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-20 08:18:01,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:01,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-20 08:18:01,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:01,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-20 08:18:01,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:01,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 74 transitions. [2020-10-20 08:18:01,447 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-20 08:18:01,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 17 states and 24 transitions. [2020-10-20 08:18:01,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-20 08:18:01,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-20 08:18:01,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2020-10-20 08:18:01,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:01,455 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-20 08:18:01,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2020-10-20 08:18:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-20 08:18:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 08:18:01,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2020-10-20 08:18:01,487 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-20 08:18:01,488 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-20 08:18:01,488 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:18:01,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2020-10-20 08:18:01,489 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-20 08:18:01,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:01,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:01,490 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:01,490 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:01,491 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 159#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 160#L527 assume !(main_~length1~0 < 1); 156#L527-2 assume !(main_~length2~0 < 2); 157#L530-1 assume !(main_~length3~0 < 1); 161#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 151#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 153#L540-4 main_~i~1 := 0; 155#L545-3 [2020-10-20 08:18:01,491 INFO L796 eck$LassoCheckResult]: Loop: 155#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 158#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 155#L545-3 [2020-10-20 08:18:01,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:01,492 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2020-10-20 08:18:01,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:01,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025404565] [2020-10-20 08:18:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,535 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:01,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:01,536 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2020-10-20 08:18:01,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:01,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871817282] [2020-10-20 08:18:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,566 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:01,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:01,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2020-10-20 08:18:01,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:01,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064054611] [2020-10-20 08:18:01,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,637 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:01,869 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-20 08:18:01,931 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:01,931 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:01,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:01,931 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:01,931 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:01,931 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:01,931 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:01,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:01,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration2_Lasso [2020-10-20 08:18:01,932 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:01,932 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:01,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,096 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-20 08:18:02,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,487 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:02,487 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 08:18:02,491 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 [2020-10-20 08:18:02,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:02,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:02,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,496 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) [2020-10-20 08:18:02,536 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 [2020-10-20 08:18:02,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,541 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 [2020-10-20 08:18:02,545 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) [2020-10-20 08:18:02,582 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 [2020-10-20 08:18:02,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:02,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:02,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,587 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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,617 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 [2020-10-20 08:18:02,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,622 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:02,633 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 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 [2020-10-20 08:18:02,660 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 [2020-10-20 08:18:02,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:02,672 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) [2020-10-20 08:18:02,711 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 [2020-10-20 08:18:02,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:02,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:02,780 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-20 08:18:02,780 INFO L444 ModelExtractionUtils]: 21 out of 34 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:02,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,793 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 08:18:02,793 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:02,793 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_2 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2020-10-20 08:18:02,839 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2020-10-20 08:18:02,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:18:02,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:02,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 08:18:02,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:02,922 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 08:18:02,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:02,943 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 [2020-10-20 08:18:02,943 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-20 08:18:03,013 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 24 states and 36 transitions. Complement of second has 7 states. [2020-10-20 08:18:03,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 08:18:03,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 08:18:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2020-10-20 08:18:03,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-20 08:18:03,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:03,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 08:18:03,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:03,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-20 08:18:03,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:03,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2020-10-20 08:18:03,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:03,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 18 states and 26 transitions. [2020-10-20 08:18:03,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-20 08:18:03,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-20 08:18:03,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2020-10-20 08:18:03,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:03,025 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-20 08:18:03,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2020-10-20 08:18:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-20 08:18:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 08:18:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2020-10-20 08:18:03,027 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-20 08:18:03,027 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-20 08:18:03,028 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:18:03,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2020-10-20 08:18:03,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:03,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:03,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:03,029 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:03,030 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:03,030 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 289#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 290#L527 assume !(main_~length1~0 < 1); 285#L527-2 assume !(main_~length2~0 < 2); 286#L530-1 assume !(main_~length3~0 < 1); 291#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 280#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 282#L540-4 main_~i~1 := 0; 284#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 292#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 279#L517-3 [2020-10-20 08:18:03,030 INFO L796 eck$LassoCheckResult]: Loop: 279#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 277#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 279#L517-3 [2020-10-20 08:18:03,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:03,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2020-10-20 08:18:03,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:03,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661218235] [2020-10-20 08:18:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:03,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661218235] [2020-10-20 08:18:03,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:18:03,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:18:03,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040459124] [2020-10-20 08:18:03,096 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:18:03,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:03,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2020-10-20 08:18:03,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:03,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871421404] [2020-10-20 08:18:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,106 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:03,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:18:03,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:18:03,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:18:03,135 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-10-20 08:18:03,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:18:03,176 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-10-20 08:18:03,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 08:18:03,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-10-20 08:18:03,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:03,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2020-10-20 08:18:03,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-20 08:18:03,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-20 08:18:03,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-10-20 08:18:03,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:03,180 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-20 08:18:03,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-10-20 08:18:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-20 08:18:03,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 08:18:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-10-20 08:18:03,182 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-20 08:18:03,182 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-20 08:18:03,183 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:18:03,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-10-20 08:18:03,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:03,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:03,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:03,184 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:03,184 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:03,185 INFO L794 eck$LassoCheckResult]: Stem: 337#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 333#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 334#L527 assume !(main_~length1~0 < 1); 329#L527-2 assume !(main_~length2~0 < 2); 330#L530-1 assume !(main_~length3~0 < 1); 335#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 324#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 326#L540-4 main_~i~1 := 0; 328#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 331#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 332#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 336#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 323#L517-3 [2020-10-20 08:18:03,185 INFO L796 eck$LassoCheckResult]: Loop: 323#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 321#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 323#L517-3 [2020-10-20 08:18:03,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:03,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1696346049, now seen corresponding path program 1 times [2020-10-20 08:18:03,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:03,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807147077] [2020-10-20 08:18:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,222 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:03,223 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2020-10-20 08:18:03,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:03,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561152507] [2020-10-20 08:18:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:03,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:03,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1899017530, now seen corresponding path program 1 times [2020-10-20 08:18:03,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:03,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93071322] [2020-10-20 08:18:03,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:03,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:03,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93071322] [2020-10-20 08:18:03,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594327377] [2020-10-20 08:18:03,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:18:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:03,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-20 08:18:03,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:03,848 INFO L350 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2020-10-20 08:18:03,849 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 36 treesize of output 21 [2020-10-20 08:18:03,849 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 08:18:03,862 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 08:18:03,875 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-10-20 08:18:03,875 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:54, output treesize:38 [2020-10-20 08:18:04,112 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 08:18:04,130 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 08:18:04,130 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 46 [2020-10-20 08:18:04,131 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 08:18:04,142 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 08:18:04,148 INFO L545 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 08:18:04,148 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:48, output treesize:3 [2020-10-20 08:18:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:04,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 08:18:04,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2020-10-20 08:18:04,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408808925] [2020-10-20 08:18:04,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:18:04,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 08:18:04,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-20 08:18:04,180 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 15 states. [2020-10-20 08:18:06,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:18:06,060 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2020-10-20 08:18:06,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 08:18:06,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2020-10-20 08:18:06,063 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-20 08:18:06,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 35 transitions. [2020-10-20 08:18:06,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-10-20 08:18:06,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-20 08:18:06,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-10-20 08:18:06,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:06,065 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-20 08:18:06,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-10-20 08:18:06,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2020-10-20 08:18:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 08:18:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-10-20 08:18:06,068 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-10-20 08:18:06,068 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-10-20 08:18:06,068 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 08:18:06,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2020-10-20 08:18:06,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:06,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:06,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:06,070 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:06,070 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:06,070 INFO L794 eck$LassoCheckResult]: Stem: 457#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 452#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 453#L527 assume !(main_~length1~0 < 1); 446#L527-2 assume !(main_~length2~0 < 2); 447#L530-1 assume !(main_~length3~0 < 1); 454#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 441#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 443#L540-4 main_~i~1 := 0; 445#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 450#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 451#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 455#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 460#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 439#L517-1 assume !(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2; 440#L519-2 [2020-10-20 08:18:06,071 INFO L796 eck$LassoCheckResult]: Loop: 440#L519-2 cstrcat_#t~post4.base, cstrcat_#t~post4.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post4.base, 1 + cstrcat_#t~post4.offset;cstrcat_#t~post5.base, cstrcat_#t~post5.offset := cstrcat_~s2.base, cstrcat_~s2.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#t~post5.base, 1 + cstrcat_#t~post5.offset;call cstrcat_#t~mem6 := read~int(cstrcat_#t~post5.base, cstrcat_#t~post5.offset, 1);call write~int(cstrcat_#t~mem6, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, 1); 459#L519 assume !!(0 != cstrcat_#t~mem6);havoc cstrcat_#t~post4.base, cstrcat_#t~post4.offset;havoc cstrcat_#t~post5.base, cstrcat_#t~post5.offset;havoc cstrcat_#t~mem6; 440#L519-2 [2020-10-20 08:18:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1899017532, now seen corresponding path program 1 times [2020-10-20 08:18:06,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325061434] [2020-10-20 08:18:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,109 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,112 INFO L82 PathProgramCache]: Analyzing trace with hash 3206, now seen corresponding path program 1 times [2020-10-20 08:18:06,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449720357] [2020-10-20 08:18:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,130 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,131 INFO L82 PathProgramCache]: Analyzing trace with hash 405254793, now seen corresponding path program 1 times [2020-10-20 08:18:06,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470816095] [2020-10-20 08:18:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 08:18:06,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470816095] [2020-10-20 08:18:06,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:18:06,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 08:18:06,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754123269] [2020-10-20 08:18:06,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:18:06,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 08:18:06,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 08:18:06,364 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-10-20 08:18:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:18:06,445 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2020-10-20 08:18:06,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 08:18:06,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2020-10-20 08:18:06,448 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-20 08:18:06,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 42 transitions. [2020-10-20 08:18:06,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-20 08:18:06,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-20 08:18:06,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2020-10-20 08:18:06,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:06,450 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2020-10-20 08:18:06,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2020-10-20 08:18:06,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-20 08:18:06,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-20 08:18:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2020-10-20 08:18:06,454 INFO L714 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-10-20 08:18:06,454 INFO L594 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-10-20 08:18:06,454 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 08:18:06,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2020-10-20 08:18:06,455 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-20 08:18:06,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:06,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:06,456 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:06,456 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:06,457 INFO L794 eck$LassoCheckResult]: Stem: 536#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 530#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 531#L527 assume !(main_~length1~0 < 1); 524#L527-2 assume !(main_~length2~0 < 2); 525#L530-1 assume !(main_~length3~0 < 1); 532#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 518#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 520#L540-4 main_~i~1 := 0; 523#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 544#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 543#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 542#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 541#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 540#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 517#L517-3 [2020-10-20 08:18:06,457 INFO L796 eck$LassoCheckResult]: Loop: 517#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 516#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 517#L517-3 [2020-10-20 08:18:06,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1898962205, now seen corresponding path program 2 times [2020-10-20 08:18:06,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810299254] [2020-10-20 08:18:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,479 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,484 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,485 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 3 times [2020-10-20 08:18:06,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810475403] [2020-10-20 08:18:06,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,493 INFO L82 PathProgramCache]: Analyzing trace with hash 458423656, now seen corresponding path program 2 times [2020-10-20 08:18:06,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751675546] [2020-10-20 08:18:06,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,532 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:07,247 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 122 [2020-10-20 08:18:07,468 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-20 08:18:07,471 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:07,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:07,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:07,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:07,472 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:07,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:07,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:07,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:07,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration6_Lasso [2020-10-20 08:18:07,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:07,473 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:07,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,877 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-10-20 08:18:07,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,214 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-20 08:18:08,583 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:08,584 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,588 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 [2020-10-20 08:18:08,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,591 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 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,615 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 [2020-10-20 08:18:08,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:08,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:08,621 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 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,644 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 [2020-10-20 08:18:08,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,647 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 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,672 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 [2020-10-20 08:18:08,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,677 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 [2020-10-20 08:18:08,709 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 [2020-10-20 08:18:08,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,713 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 [2020-10-20 08:18:08,735 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 [2020-10-20 08:18:08,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,739 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) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,762 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 [2020-10-20 08:18:08,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,766 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 [2020-10-20 08:18:08,788 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 [2020-10-20 08:18:08,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:08,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:08,795 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 [2020-10-20 08:18:08,821 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 [2020-10-20 08:18:08,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,825 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 [2020-10-20 08:18:08,848 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 [2020-10-20 08:18:08,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,851 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 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 [2020-10-20 08:18:08,875 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 [2020-10-20 08:18:08,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,878 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 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,902 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 [2020-10-20 08:18:08,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,907 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 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,933 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 [2020-10-20 08:18:08,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,937 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 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,976 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 [2020-10-20 08:18:08,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,980 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 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,005 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 [2020-10-20 08:18:09,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:09,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:09,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:09,014 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 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,036 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 [2020-10-20 08:18:09,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:09,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:09,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:09,040 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 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,067 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 [2020-10-20 08:18:09,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,074 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 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,101 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 [2020-10-20 08:18:09,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,109 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:09,152 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 [2020-10-20 08:18:09,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,157 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,164 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 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,197 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 [2020-10-20 08:18:09,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,203 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:09,227 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,265 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:09,290 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-20 08:18:09,290 INFO L444 ModelExtractionUtils]: 36 out of 55 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,293 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:18:09,298 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:18:09,299 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:09,299 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2020-10-20 08:18:09,357 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-20 08:18:09,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:18:09,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:09,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:18:09,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:09,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 08:18:09,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:09,444 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 [2020-10-20 08:18:09,444 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15 Second operand 3 states. [2020-10-20 08:18:09,466 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 40 states and 52 transitions. Complement of second has 6 states. [2020-10-20 08:18:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 08:18:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:18:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-10-20 08:18:09,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 14 letters. Loop has 2 letters. [2020-10-20 08:18:09,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:09,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 16 letters. Loop has 2 letters. [2020-10-20 08:18:09,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:09,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-20 08:18:09,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:09,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2020-10-20 08:18:09,469 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:18:09,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2020-10-20 08:18:09,470 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:18:09,470 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:18:09,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:18:09,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:09,472 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:09,472 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:09,472 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:09,472 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-20 08:18:09,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 08:18:09,472 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:18:09,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 08:18:09,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:18:09 BoogieIcfgContainer [2020-10-20 08:18:09,479 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:18:09,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:18:09,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:18:09,483 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:18:09,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:17:58" (3/4) ... [2020-10-20 08:18:09,486 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 08:18:09,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:18:09,493 INFO L168 Benchmark]: Toolchain (without parser) took 12101.72 ms. Allocated memory was 36.2 MB in the beginning and 94.4 MB in the end (delta: 58.2 MB). Free memory was 8.2 MB in the beginning and 61.9 MB in the end (delta: -53.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,494 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 14.3 MB in the beginning and 14.2 MB in the end (delta: 52.3 kB). Peak memory consumption was 52.3 kB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.62 ms. Allocated memory was 36.2 MB in the beginning and 45.6 MB in the end (delta: 9.4 MB). Free memory was 7.4 MB in the beginning and 16.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.50 ms. Allocated memory was 45.6 MB in the beginning and 46.7 MB in the end (delta: 1.0 MB). Free memory was 16.6 MB in the beginning and 28.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,498 INFO L168 Benchmark]: Boogie Preprocessor took 33.23 ms. Allocated memory is still 46.7 MB. Free memory was 28.6 MB in the beginning and 27.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,499 INFO L168 Benchmark]: RCFGBuilder took 435.08 ms. Allocated memory was 46.7 MB in the beginning and 47.2 MB in the end (delta: 524.3 kB). Free memory was 27.1 MB in the beginning and 25.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,503 INFO L168 Benchmark]: BuchiAutomizer took 10981.18 ms. Allocated memory was 47.2 MB in the beginning and 94.4 MB in the end (delta: 47.2 MB). Free memory was 25.5 MB in the beginning and 63.0 MB in the end (delta: -37.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,503 INFO L168 Benchmark]: Witness Printer took 4.37 ms. Allocated memory is still 94.4 MB. Free memory was 63.0 MB in the beginning and 61.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 14.3 MB in the beginning and 14.2 MB in the end (delta: 52.3 kB). Peak memory consumption was 52.3 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 577.62 ms. Allocated memory was 36.2 MB in the beginning and 45.6 MB in the end (delta: 9.4 MB). Free memory was 7.4 MB in the beginning and 16.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 57.50 ms. Allocated memory was 45.6 MB in the beginning and 46.7 MB in the end (delta: 1.0 MB). Free memory was 16.6 MB in the beginning and 28.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 33.23 ms. Allocated memory is still 46.7 MB. Free memory was 28.6 MB in the beginning and 27.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 435.08 ms. Allocated memory was 46.7 MB in the beginning and 47.2 MB in the end (delta: 524.3 kB). Free memory was 27.1 MB in the beginning and 25.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 10981.18 ms. Allocated memory was 47.2 MB in the beginning and 94.4 MB in the end (delta: 47.2 MB). Free memory was 25.5 MB in the beginning and 63.0 MB in the end (delta: -37.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * Witness Printer took 4.37 ms. Allocated memory is still 94.4 MB. Free memory was 63.0 MB in the beginning and 61.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.9s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.2s. Construction of modules took 1.6s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 32 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 186 SDslu, 170 SDs, 0 SdLazy, 188 SolverSat, 36 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.6s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital180 mio100 ax111 hnf98 lsp83 ukn74 mio100 lsp60 div100 bol100 ite100 ukn100 eq165 hnf91 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...