./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.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 8770e865452d763f6a1ae70a92c5caf41552c1e5 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 19:11:44,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:11:44,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:11:44,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:11:44,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:11:44,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:11:44,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:11:44,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:11:44,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:11:44,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:11:44,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:11:44,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:11:44,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:11:44,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:11:44,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:11:44,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:11:44,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:11:44,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:11:44,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:11:44,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:11:44,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:11:44,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:11:44,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:11:44,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:11:44,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:11:44,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:11:44,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:11:44,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:11:44,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:11:44,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:11:44,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:11:44,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:11:44,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:11:44,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:11:44,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:11:44,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:11:44,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:11:44,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:11:44,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:11:44,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:11:44,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:11:44,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:11:44,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:11:44,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:11:44,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:11:44,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:11:44,990 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:11:44,991 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:11:44,991 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:11:44,991 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:11:44,992 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:11:44,992 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:11:44,992 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:11:44,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:11:44,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:11:44,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:11:44,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:11:44,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:11:44,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:11:44,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:11:44,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:11:44,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:11:44,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:11:44,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:11:44,996 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:11:44,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:11:44,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:11:44,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:11:44,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:11:44,997 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:11:44,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:11:44,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:11:44,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:11:44,998 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:11:44,999 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:11:45,000 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 -> 8770e865452d763f6a1ae70a92c5caf41552c1e5 [2020-10-19 19:11:45,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:11:45,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:11:45,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:11:45,332 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:11:45,333 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:11:45,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-10-19 19:11:45,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016f8460e/f055b767aa784cef96dbda8c320c64fc/FLAGe1bcc437c [2020-10-19 19:11:45,884 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:11:45,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-10-19 19:11:45,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016f8460e/f055b767aa784cef96dbda8c320c64fc/FLAGe1bcc437c [2020-10-19 19:11:46,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016f8460e/f055b767aa784cef96dbda8c320c64fc [2020-10-19 19:11:46,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:11:46,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:11:46,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:11:46,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:11:46,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:11:46,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15987862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46, skipping insertion in model container [2020-10-19 19:11:46,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:11:46,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:11:46,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:11:46,603 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:11:46,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:11:46,724 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:11:46,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46 WrapperNode [2020-10-19 19:11:46,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:11:46,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:11:46,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:11:46,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:11:46,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:11:46,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:11:46,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:11:46,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:11:46,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... [2020-10-19 19:11:46,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:11:46,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:11:46,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:11:46,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:11:46,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:46,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:11:46,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 19:11:46,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 19:11:46,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:11:46,896 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-10-19 19:11:46,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:11:46,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:11:46,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 19:11:47,294 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:11:47,295 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-10-19 19:11:47,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:47 BoogieIcfgContainer [2020-10-19 19:11:47,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:11:47,309 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:11:47,310 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:11:47,313 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:11:47,315 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:47,315 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:11:46" (1/3) ... [2020-10-19 19:11:47,317 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@500b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:11:47, skipping insertion in model container [2020-10-19 19:11:47,318 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:47,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:46" (2/3) ... [2020-10-19 19:11:47,325 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@500b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:11:47, skipping insertion in model container [2020-10-19 19:11:47,325 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:47,325 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:47" (3/3) ... [2020-10-19 19:11:47,327 INFO L373 chiAutomizerObserver]: Analyzing ICFG verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-10-19 19:11:47,382 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:11:47,382 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:11:47,383 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:11:47,383 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:11:47,383 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:11:47,383 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:11:47,384 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:11:47,384 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:11:47,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states. [2020-10-19 19:11:47,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2020-10-19 19:11:47,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:47,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:47,425 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 19:11:47,426 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:11:47,426 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:11:47,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states. [2020-10-19 19:11:47,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2020-10-19 19:11:47,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:47,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:47,430 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 19:11:47,430 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:11:47,436 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 9#L-1true havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 28#L61true assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 3#L62-4true [2020-10-19 19:11:47,437 INFO L796 eck$LassoCheckResult]: Loop: 3#L62-4true parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 12#L65true assume !parse_expression_list_#t~switch7; 33#L64true havoc parse_expression_list_#t~switch7;havoc parse_expression_list_#t~mem6; 8#L62-1true call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 5#L62-2true assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 3#L62-4true [2020-10-19 19:11:47,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:47,443 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-10-19 19:11:47,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:47,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314669767] [2020-10-19 19:11:47,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,631 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:47,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:47,633 INFO L82 PathProgramCache]: Analyzing trace with hash 42114609, now seen corresponding path program 1 times [2020-10-19 19:11:47,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:47,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349276080] [2020-10-19 19:11:47,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,658 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:47,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:47,670 INFO L82 PathProgramCache]: Analyzing trace with hash 181442414, now seen corresponding path program 1 times [2020-10-19 19:11:47,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:47,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59154317] [2020-10-19 19:11:47,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,763 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,780 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:48,254 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2020-10-19 19:11:48,424 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-19 19:11:48,438 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:48,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:48,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:48,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:48,440 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:48,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:48,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:48,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:48,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_OpenSER_cases1_stripFullBoth_arr.i_Iteration1_Lasso [2020-10-19 19:11:48,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:48,442 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:48,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,799 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-19 19:11:48,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,328 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:49,334 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:49,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:49,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:49,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:49,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:49,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:49,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:49,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:49,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:49,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:49,505 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) [2020-10-19 19:11:49,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:49,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:49,566 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 [2020-10-19 19:11:49,569 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:49,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:49,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:49,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:49,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:49,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:49,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,672 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 [2020-10-19 19:11:49,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:49,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:49,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:49,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:49,795 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:49,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:49,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:49,846 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 [2020-10-19 19:11:49,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:49,881 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:49,915 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 [2020-10-19 19:11:49,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,943 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,943 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:49,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:49,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:49,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:49,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:49,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:49,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:49,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:50,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:50,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:50,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:50,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:50,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:50,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:50,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:50,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:50,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:50,101 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-19 19:11:50,101 INFO L444 ModelExtractionUtils]: 11 out of 22 variables were initially zero. Simplification set additionally 7 variables to zero. 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) [2020-10-19 19:11:50,111 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:50,118 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 19:11:50,118 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:50,119 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_parse_expression_list_~str.offset, v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1, ULTIMATE.start_parse_expression_list_~i~0) = -1*ULTIMATE.start_parse_expression_list_~str.offset + 1*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 - 1*ULTIMATE.start_parse_expression_list_~i~0 Supporting invariants [] [2020-10-19 19:11:50,314 INFO L297 tatePredicateManager]: 17 out of 18 supporting invariants were superfluous and have been removed [2020-10-19 19:11:50,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 19:11:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:50,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 19:11:50,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:50,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 19:11:50,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:50,513 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-19 19:11:50,515 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states. Second operand 4 states. [2020-10-19 19:11:50,688 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states.. Second operand 4 states. Result 100 states and 141 transitions. Complement of second has 7 states. [2020-10-19 19:11:50,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 19:11:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2020-10-19 19:11:50,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 3 letters. Loop has 5 letters. [2020-10-19 19:11:50,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:50,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 8 letters. Loop has 5 letters. [2020-10-19 19:11:50,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:50,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 3 letters. Loop has 10 letters. [2020-10-19 19:11:50,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:50,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 141 transitions. [2020-10-19 19:11:50,717 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:50,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 40 states and 55 transitions. [2020-10-19 19:11:50,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-19 19:11:50,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-10-19 19:11:50,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 55 transitions. [2020-10-19 19:11:50,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:50,728 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 55 transitions. [2020-10-19 19:11:50,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 55 transitions. [2020-10-19 19:11:50,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-19 19:11:50,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-19 19:11:50,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-10-19 19:11:50,763 INFO L714 BuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-10-19 19:11:50,764 INFO L594 BuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-10-19 19:11:50,764 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:11:50,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 54 transitions. [2020-10-19 19:11:50,766 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:50,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:50,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:50,767 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 19:11:50,767 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:50,767 INFO L794 eck$LassoCheckResult]: Stem: 300#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 278#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 279#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 263#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 264#L65 assume parse_expression_list_#t~switch7; 273#L66-5 [2020-10-19 19:11:50,767 INFO L796 eck$LassoCheckResult]: Loop: 273#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 274#L66-1 assume parse_expression_list_#t~short10; 298#L66-3 assume !!parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;parse_expression_list_#t~post11 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post11;havoc parse_expression_list_#t~post11; 273#L66-5 [2020-10-19 19:11:50,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:50,768 INFO L82 PathProgramCache]: Analyzing trace with hash 28695815, now seen corresponding path program 1 times [2020-10-19 19:11:50,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:50,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030523835] [2020-10-19 19:11:50,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:50,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:50,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:50,819 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:50,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:50,820 INFO L82 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 1 times [2020-10-19 19:11:50,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:50,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108614797] [2020-10-19 19:11:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:50,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:50,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:50,832 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:50,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:50,833 INFO L82 PathProgramCache]: Analyzing trace with hash 178551732, now seen corresponding path program 1 times [2020-10-19 19:11:50,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:50,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493330471] [2020-10-19 19:11:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:51,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:51,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493330471] [2020-10-19 19:11:51,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:11:51,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 19:11:51,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026973357] [2020-10-19 19:11:51,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:51,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 19:11:51,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 19:11:51,100 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. cyclomatic complexity: 18 Second operand 6 states. [2020-10-19 19:11:51,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:51,244 INFO L93 Difference]: Finished difference Result 71 states and 97 transitions. [2020-10-19 19:11:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 19:11:51,245 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 97 transitions. [2020-10-19 19:11:51,248 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-10-19 19:11:51,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 71 states and 97 transitions. [2020-10-19 19:11:51,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-10-19 19:11:51,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-10-19 19:11:51,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 97 transitions. [2020-10-19 19:11:51,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:51,250 INFO L691 BuchiCegarLoop]: Abstraction has 71 states and 97 transitions. [2020-10-19 19:11:51,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 97 transitions. [2020-10-19 19:11:51,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2020-10-19 19:11:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-19 19:11:51,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2020-10-19 19:11:51,256 INFO L714 BuchiCegarLoop]: Abstraction has 46 states and 63 transitions. [2020-10-19 19:11:51,256 INFO L594 BuchiCegarLoop]: Abstraction has 46 states and 63 transitions. [2020-10-19 19:11:51,257 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 19:11:51,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 63 transitions. [2020-10-19 19:11:51,260 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:51,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:51,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:51,265 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:51,266 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:51,266 INFO L794 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 402#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 403#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 386#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 387#L65 assume !parse_expression_list_#t~switch7; 396#L64 havoc parse_expression_list_#t~switch7;havoc parse_expression_list_#t~mem6; 401#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 390#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 388#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 389#L65 assume parse_expression_list_#t~switch7; 429#L66-5 [2020-10-19 19:11:51,266 INFO L796 eck$LassoCheckResult]: Loop: 429#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 430#L66-1 assume parse_expression_list_#t~short10; 431#L66-3 assume !!parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;parse_expression_list_#t~post11 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post11;havoc parse_expression_list_#t~post11; 429#L66-5 [2020-10-19 19:11:51,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:51,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1727498927, now seen corresponding path program 1 times [2020-10-19 19:11:51,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:51,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788935745] [2020-10-19 19:11:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:51,312 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:51,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:51,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:51,347 INFO L82 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 2 times [2020-10-19 19:11:51,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:51,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587955944] [2020-10-19 19:11:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:51,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:51,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:51,358 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:51,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:51,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1622374614, now seen corresponding path program 1 times [2020-10-19 19:11:51,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:51,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855901609] [2020-10-19 19:11:51,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:51,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:51,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:51,400 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:52,006 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2020-10-19 19:11:52,173 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-19 19:11:52,176 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:52,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:52,176 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:52,176 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:52,176 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:52,176 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:52,177 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:52,177 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:52,177 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_OpenSER_cases1_stripFullBoth_arr.i_Iteration3_Lasso [2020-10-19 19:11:52,177 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:52,177 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:52,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,582 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-10-19 19:11:52,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:52,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:53,220 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:53,220 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:53,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:53,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:53,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:53,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:53,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:53,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:53,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:53,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:53,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:53,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:53,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:53,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:53,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:53,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:53,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:53,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:53,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:53,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:53,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:53,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:53,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:53,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:53,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:53,344 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:53,345 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:53,358 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:53,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:53,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:53,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:53,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:53,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:53,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:53,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:53,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:53,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:53,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:53,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:53,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:53,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:53,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:53,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:53,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:53,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:53,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:53,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:53,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:53,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:53,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:53,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:53,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:53,615 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-10-19 19:11:53,615 INFO L444 ModelExtractionUtils]: 1 out of 25 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:53,618 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:11:53,620 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 19:11:53,620 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:53,620 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#A~0.base)_2, ULTIMATE.start_parse_expression_list_~str.offset, ULTIMATE.start_parse_expression_list_~start~0) = 1*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_2 - 1*ULTIMATE.start_parse_expression_list_~str.offset - 1*ULTIMATE.start_parse_expression_list_~start~0 Supporting invariants [] [2020-10-19 19:11:53,735 INFO L297 tatePredicateManager]: 24 out of 25 supporting invariants were superfluous and have been removed [2020-10-19 19:11:53,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 19:11:53,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:53,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 19:11:53,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:53,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 19:11:53,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:53,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:53,819 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-19 19:11:53,819 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 63 transitions. cyclomatic complexity: 20 Second operand 4 states. [2020-10-19 19:11:53,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 63 transitions. cyclomatic complexity: 20. Second operand 4 states. Result 153 states and 213 transitions. Complement of second has 8 states. [2020-10-19 19:11:53,909 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 [2020-10-19 19:11:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-10-19 19:11:53,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-19 19:11:53,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:53,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-19 19:11:53,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:53,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-19 19:11:53,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:53,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 213 transitions. [2020-10-19 19:11:53,915 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 18 [2020-10-19 19:11:53,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 115 states and 159 transitions. [2020-10-19 19:11:53,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2020-10-19 19:11:53,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2020-10-19 19:11:53,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 159 transitions. [2020-10-19 19:11:53,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:53,919 INFO L691 BuchiCegarLoop]: Abstraction has 115 states and 159 transitions. [2020-10-19 19:11:53,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 159 transitions. [2020-10-19 19:11:53,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-10-19 19:11:53,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-19 19:11:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 102 transitions. [2020-10-19 19:11:53,928 INFO L714 BuchiCegarLoop]: Abstraction has 72 states and 102 transitions. [2020-10-19 19:11:53,928 INFO L594 BuchiCegarLoop]: Abstraction has 72 states and 102 transitions. [2020-10-19 19:11:53,928 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 19:11:53,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 102 transitions. [2020-10-19 19:11:53,929 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:53,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:53,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:53,932 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:53,932 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:53,932 INFO L794 eck$LassoCheckResult]: Stem: 803#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 775#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 776#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 755#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 756#L65 assume parse_expression_list_#t~switch7; 767#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 768#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 826#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9; 761#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 762#L67 assume 34 == parse_expression_list_#t~mem12;havoc parse_expression_list_#t~mem12;parse_expression_list_#t~post13 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post13;havoc parse_expression_list_#t~post13; 784#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 778#L69-8 [2020-10-19 19:11:53,933 INFO L796 eck$LassoCheckResult]: Loop: 778#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 794#L69-1 assume !parse_expression_list_#t~short17; 777#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 778#L69-8 [2020-10-19 19:11:53,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:53,933 INFO L82 PathProgramCache]: Analyzing trace with hash 2066956886, now seen corresponding path program 1 times [2020-10-19 19:11:53,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:53,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867664756] [2020-10-19 19:11:53,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:54,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867664756] [2020-10-19 19:11:54,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:11:54,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 19:11:54,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847920526] [2020-10-19 19:11:54,076 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:11:54,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,076 INFO L82 PathProgramCache]: Analyzing trace with hash 75859, now seen corresponding path program 1 times [2020-10-19 19:11:54,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372387989] [2020-10-19 19:11:54,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:54,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372387989] [2020-10-19 19:11:54,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:11:54,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 19:11:54,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777047966] [2020-10-19 19:11:54,090 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 19:11:54,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:54,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:11:54,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:11:54,090 INFO L87 Difference]: Start difference. First operand 72 states and 102 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-10-19 19:11:54,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:54,102 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2020-10-19 19:11:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 19:11:54,103 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 103 transitions. [2020-10-19 19:11:54,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:54,105 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 73 states and 102 transitions. [2020-10-19 19:11:54,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-10-19 19:11:54,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-10-19 19:11:54,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 102 transitions. [2020-10-19 19:11:54,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:54,106 INFO L691 BuchiCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-10-19 19:11:54,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 102 transitions. [2020-10-19 19:11:54,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-19 19:11:54,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-19 19:11:54,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-10-19 19:11:54,112 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-10-19 19:11:54,112 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-10-19 19:11:54,112 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 19:11:54,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 102 transitions. [2020-10-19 19:11:54,113 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:54,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:54,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:54,114 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:54,114 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:11:54,115 INFO L794 eck$LassoCheckResult]: Stem: 954#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 929#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 930#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 911#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 912#L65 assume parse_expression_list_#t~switch7; 923#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 924#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 964#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9; 961#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 958#L67 assume 34 == parse_expression_list_#t~mem12;havoc parse_expression_list_#t~mem12;parse_expression_list_#t~post13 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post13;havoc parse_expression_list_#t~post13; 937#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 932#L69-8 [2020-10-19 19:11:54,115 INFO L796 eck$LassoCheckResult]: Loop: 932#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 947#L69-1 assume parse_expression_list_#t~short17;call parse_expression_list_#t~mem14 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short16 := 32 == parse_expression_list_#t~mem14; 944#L69-2 assume parse_expression_list_#t~short16; 940#L69-4 parse_expression_list_#t~short17 := parse_expression_list_#t~short16; 931#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 932#L69-8 [2020-10-19 19:11:54,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,115 INFO L82 PathProgramCache]: Analyzing trace with hash 2066956886, now seen corresponding path program 2 times [2020-10-19 19:11:54,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114872161] [2020-10-19 19:11:54,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:54,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114872161] [2020-10-19 19:11:54,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:11:54,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 19:11:54,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375383924] [2020-10-19 19:11:54,258 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:11:54,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,258 INFO L82 PathProgramCache]: Analyzing trace with hash 72622648, now seen corresponding path program 1 times [2020-10-19 19:11:54,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386248877] [2020-10-19 19:11:54,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,275 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,278 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:54,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:54,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 19:11:54,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 19:11:54,355 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. cyclomatic complexity: 35 Second operand 6 states. [2020-10-19 19:11:54,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:54,485 INFO L93 Difference]: Finished difference Result 105 states and 138 transitions. [2020-10-19 19:11:54,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 19:11:54,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 138 transitions. [2020-10-19 19:11:54,488 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-10-19 19:11:54,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 97 states and 130 transitions. [2020-10-19 19:11:54,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-10-19 19:11:54,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2020-10-19 19:11:54,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 130 transitions. [2020-10-19 19:11:54,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:54,490 INFO L691 BuchiCegarLoop]: Abstraction has 97 states and 130 transitions. [2020-10-19 19:11:54,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 130 transitions. [2020-10-19 19:11:54,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 69. [2020-10-19 19:11:54,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-19 19:11:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2020-10-19 19:11:54,495 INFO L714 BuchiCegarLoop]: Abstraction has 69 states and 96 transitions. [2020-10-19 19:11:54,495 INFO L594 BuchiCegarLoop]: Abstraction has 69 states and 96 transitions. [2020-10-19 19:11:54,495 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 19:11:54,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 96 transitions. [2020-10-19 19:11:54,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:54,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:54,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:54,498 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:54,498 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:11:54,498 INFO L794 eck$LassoCheckResult]: Stem: 1142#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 1121#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 1122#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1100#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1101#L65 assume parse_expression_list_#t~switch7; 1112#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 1113#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 1139#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9; 1104#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 1105#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 1123#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 1118#L69-8 [2020-10-19 19:11:54,498 INFO L796 eck$LassoCheckResult]: Loop: 1118#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 1134#L69-1 assume parse_expression_list_#t~short17;call parse_expression_list_#t~mem14 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short16 := 32 == parse_expression_list_#t~mem14; 1131#L69-2 assume parse_expression_list_#t~short16; 1126#L69-4 parse_expression_list_#t~short17 := parse_expression_list_#t~short16; 1117#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 1118#L69-8 [2020-10-19 19:11:54,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,499 INFO L82 PathProgramCache]: Analyzing trace with hash 2066956948, now seen corresponding path program 1 times [2020-10-19 19:11:54,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378493296] [2020-10-19 19:11:54,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,526 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:54,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,527 INFO L82 PathProgramCache]: Analyzing trace with hash 72622648, now seen corresponding path program 2 times [2020-10-19 19:11:54,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491893919] [2020-10-19 19:11:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,537 INFO L82 PathProgramCache]: Analyzing trace with hash 733119365, now seen corresponding path program 1 times [2020-10-19 19:11:54,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232848343] [2020-10-19 19:11:54,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:54,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:54,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232848343] [2020-10-19 19:11:54,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:11:54,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 19:11:54,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179679765] [2020-10-19 19:11:54,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:54,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 19:11:54,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 19:11:54,661 INFO L87 Difference]: Start difference. First operand 69 states and 96 transitions. cyclomatic complexity: 33 Second operand 6 states. [2020-10-19 19:11:54,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:54,773 INFO L93 Difference]: Finished difference Result 115 states and 151 transitions. [2020-10-19 19:11:54,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 19:11:54,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 151 transitions. [2020-10-19 19:11:54,776 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2020-10-19 19:11:54,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 107 states and 143 transitions. [2020-10-19 19:11:54,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2020-10-19 19:11:54,778 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2020-10-19 19:11:54,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 143 transitions. [2020-10-19 19:11:54,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:54,778 INFO L691 BuchiCegarLoop]: Abstraction has 107 states and 143 transitions. [2020-10-19 19:11:54,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 143 transitions. [2020-10-19 19:11:54,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 73. [2020-10-19 19:11:54,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-19 19:11:54,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 99 transitions. [2020-10-19 19:11:54,783 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 99 transitions. [2020-10-19 19:11:54,784 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 99 transitions. [2020-10-19 19:11:54,784 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-19 19:11:54,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 99 transitions. [2020-10-19 19:11:54,785 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:54,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:54,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:54,786 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:54,786 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:11:54,786 INFO L794 eck$LassoCheckResult]: Stem: 1343#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 1317#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 1318#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1301#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1302#L65 assume !parse_expression_list_#t~switch7; 1361#L64 havoc parse_expression_list_#t~switch7;havoc parse_expression_list_#t~mem6; 1371#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 1370#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 1368#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1360#L65 assume parse_expression_list_#t~switch7; 1362#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 1344#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 1340#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9; 1341#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 1331#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 1324#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 1320#L69-8 [2020-10-19 19:11:54,787 INFO L796 eck$LassoCheckResult]: Loop: 1320#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 1335#L69-1 assume parse_expression_list_#t~short17;call parse_expression_list_#t~mem14 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short16 := 32 == parse_expression_list_#t~mem14; 1332#L69-2 assume parse_expression_list_#t~short16; 1327#L69-4 parse_expression_list_#t~short17 := parse_expression_list_#t~short16; 1319#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 1320#L69-8 [2020-10-19 19:11:54,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,787 INFO L82 PathProgramCache]: Analyzing trace with hash -893322402, now seen corresponding path program 1 times [2020-10-19 19:11:54,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247667366] [2020-10-19 19:11:54,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,816 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:54,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,817 INFO L82 PathProgramCache]: Analyzing trace with hash 72622648, now seen corresponding path program 3 times [2020-10-19 19:11:54,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132637955] [2020-10-19 19:11:54,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:54,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:54,826 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:54,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:54,827 INFO L82 PathProgramCache]: Analyzing trace with hash -525682437, now seen corresponding path program 1 times [2020-10-19 19:11:54,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:54,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109906883] [2020-10-19 19:11:54,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:54,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109906883] [2020-10-19 19:11:54,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935298917] [2020-10-19 19:11:54,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 19:11:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:54,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 19:11:54,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:54,952 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 19:11:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:54,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 19:11:54,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-10-19 19:11:54,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138957277] [2020-10-19 19:11:55,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:55,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 19:11:55,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 19:11:55,036 INFO L87 Difference]: Start difference. First operand 73 states and 99 transitions. cyclomatic complexity: 32 Second operand 7 states. [2020-10-19 19:11:55,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:55,205 INFO L93 Difference]: Finished difference Result 161 states and 217 transitions. [2020-10-19 19:11:55,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 19:11:55,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 217 transitions. [2020-10-19 19:11:55,207 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2020-10-19 19:11:55,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 146 states and 195 transitions. [2020-10-19 19:11:55,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-10-19 19:11:55,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-10-19 19:11:55,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 195 transitions. [2020-10-19 19:11:55,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:55,211 INFO L691 BuchiCegarLoop]: Abstraction has 146 states and 195 transitions. [2020-10-19 19:11:55,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 195 transitions. [2020-10-19 19:11:55,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 112. [2020-10-19 19:11:55,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-19 19:11:55,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2020-10-19 19:11:55,217 INFO L714 BuchiCegarLoop]: Abstraction has 112 states and 151 transitions. [2020-10-19 19:11:55,217 INFO L594 BuchiCegarLoop]: Abstraction has 112 states and 151 transitions. [2020-10-19 19:11:55,218 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-19 19:11:55,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 112 states and 151 transitions. [2020-10-19 19:11:55,219 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2020-10-19 19:11:55,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:55,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:55,220 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:55,220 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:11:55,220 INFO L794 eck$LassoCheckResult]: Stem: 1665#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 1639#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 1640#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1617#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1618#L65 assume !parse_expression_list_#t~switch7; 1647#L64 havoc parse_expression_list_#t~switch7;havoc parse_expression_list_#t~mem6; 1721#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 1720#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 1619#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1620#L65 assume !parse_expression_list_#t~switch7; 1705#L64 havoc parse_expression_list_#t~switch7;havoc parse_expression_list_#t~mem6; 1710#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 1709#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 1707#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1704#L65 assume parse_expression_list_#t~switch7; 1706#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 1633#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 1727#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9; 1726#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 1652#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 1641#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 1636#L69-8 [2020-10-19 19:11:55,221 INFO L796 eck$LassoCheckResult]: Loop: 1636#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 1656#L69-1 assume parse_expression_list_#t~short17;call parse_expression_list_#t~mem14 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short16 := 32 == parse_expression_list_#t~mem14; 1650#L69-2 assume parse_expression_list_#t~short16; 1644#L69-4 parse_expression_list_#t~short17 := parse_expression_list_#t~short16; 1635#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 1636#L69-8 [2020-10-19 19:11:55,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:55,221 INFO L82 PathProgramCache]: Analyzing trace with hash 2142843092, now seen corresponding path program 2 times [2020-10-19 19:11:55,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:55,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802612638] [2020-10-19 19:11:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:55,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:55,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:55,252 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:55,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:55,253 INFO L82 PathProgramCache]: Analyzing trace with hash 72622648, now seen corresponding path program 4 times [2020-10-19 19:11:55,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:55,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37459269] [2020-10-19 19:11:55,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:55,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:55,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:55,262 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:55,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:55,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1058570939, now seen corresponding path program 2 times [2020-10-19 19:11:55,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:55,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329728574] [2020-10-19 19:11:55,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:55,276 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:55,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:55,297 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:56,144 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 144 [2020-10-19 19:11:56,342 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-19 19:11:56,345 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:56,345 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:56,345 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:56,345 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:56,345 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:56,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:56,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:56,346 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:56,346 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_OpenSER_cases1_stripFullBoth_arr.i_Iteration8_Lasso [2020-10-19 19:11:56,346 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:56,346 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:56,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:56,934 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2020-10-19 19:11:57,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:57,528 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-10-19 19:11:57,699 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:57,699 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:57,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:57,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:57,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:57,711 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:57,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:57,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:57,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:57,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:57,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:57,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:57,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:57,766 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 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 [2020-10-19 19:11:57,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:57,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:57,797 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 [2020-10-19 19:11:57,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:57,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:57,835 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 [2020-10-19 19:11:57,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:57,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:57,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:57,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:57,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:57,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:57,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:57,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:57,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:57,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:57,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:57,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:57,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:57,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:57,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:57,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:57,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:57,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:57,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:57,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:58,005 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 [2020-10-19 19:11:58,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:58,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:58,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:58,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:58,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:58,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:58,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:58,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:58,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:58,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:58,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:58,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:58,067 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 [2020-10-19 19:11:58,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:58,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:58,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:58,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:58,098 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 [2020-10-19 19:11:58,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:58,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:58,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:58,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:58,128 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 [2020-10-19 19:11:58,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:58,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:58,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:58,157 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) [2020-10-19 19:11:58,180 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:58,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,182 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 19:11:58,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,184 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-19 19:11:58,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:58,191 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 [2020-10-19 19:11:58,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:58,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:58,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:58,224 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 [2020-10-19 19:11:58,248 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 [2020-10-19 19:11:58,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,250 INFO L203 nArgumentSynthesizer]: 5 stem disjuncts [2020-10-19 19:11:58,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,253 INFO L401 nArgumentSynthesizer]: We have 14 Motzkin's Theorem applications. [2020-10-19 19:11:58,253 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:58,264 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 [2020-10-19 19:11:58,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:58,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:58,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:58,296 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 [2020-10-19 19:11:58,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:58,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:58,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:58,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:58,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:58,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:58,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:58,349 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:58,382 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-19 19:11:58,383 INFO L444 ModelExtractionUtils]: 7 out of 31 variables were initially zero. Simplification set additionally 22 variables to zero. 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) [2020-10-19 19:11:58,394 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:58,402 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 19:11:58,402 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:58,402 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_parse_expression_list_~j~0) = 1*ULTIMATE.start_parse_expression_list_~j~0 Supporting invariants [] [2020-10-19 19:11:58,561 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2020-10-19 19:11:58,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:58,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:11:58,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:58,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:58,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:58,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:58,647 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 19:11:58,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 112 states and 151 transitions. cyclomatic complexity: 48 Second operand 4 states. [2020-10-19 19:11:58,781 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 112 states and 151 transitions. cyclomatic complexity: 48. Second operand 4 states. Result 267 states and 360 transitions. Complement of second has 11 states. [2020-10-19 19:11:58,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-10-19 19:11:58,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2020-10-19 19:11:58,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 21 letters. Loop has 5 letters. [2020-10-19 19:11:58,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:58,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 26 letters. Loop has 5 letters. [2020-10-19 19:11:58,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:58,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 21 letters. Loop has 10 letters. [2020-10-19 19:11:58,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:58,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 360 transitions. [2020-10-19 19:11:58,789 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 17 [2020-10-19 19:11:58,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 170 states and 228 transitions. [2020-10-19 19:11:58,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2020-10-19 19:11:58,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2020-10-19 19:11:58,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 170 states and 228 transitions. [2020-10-19 19:11:58,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:58,791 INFO L691 BuchiCegarLoop]: Abstraction has 170 states and 228 transitions. [2020-10-19 19:11:58,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states and 228 transitions. [2020-10-19 19:11:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 118. [2020-10-19 19:11:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-19 19:11:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 158 transitions. [2020-10-19 19:11:58,797 INFO L714 BuchiCegarLoop]: Abstraction has 118 states and 158 transitions. [2020-10-19 19:11:58,797 INFO L594 BuchiCegarLoop]: Abstraction has 118 states and 158 transitions. [2020-10-19 19:11:58,797 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-19 19:11:58,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 158 transitions. [2020-10-19 19:11:58,798 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2020-10-19 19:11:58,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:58,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:58,800 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:58,800 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:58,800 INFO L794 eck$LassoCheckResult]: Stem: 2291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 2270#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 2271#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 2250#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2251#L65 assume parse_expression_list_#t~switch7; 2320#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 2319#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 2318#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9; 2317#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 2316#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 2315#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 2314#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 2313#L69-1 assume !parse_expression_list_#t~short17; 2312#L69-6 assume !parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15; 2311#L69-9 parse_expression_list_#t~short20 := 0 < parse_expression_list_~j~0; 2310#L70 assume !parse_expression_list_#t~short20; 2309#L70-2 assume !parse_expression_list_#t~short20;havoc parse_expression_list_#t~mem19;havoc parse_expression_list_#t~short20; 2308#L70-4 assume parse_expression_list_~start~0 <= parse_expression_list_~j~0;r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset, r_strncpy_#in~src.base, r_strncpy_#in~src.offset, r_strncpy_#in~n := parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset, parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0);havoc r_strncpy_#res.base, r_strncpy_#res.offset;havoc r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset, r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n;r_strncpy_~dest.base, r_strncpy_~dest.offset := r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset;r_strncpy_~src.base, r_strncpy_~src.offset := r_strncpy_#in~src.base, r_strncpy_#in~src.offset;r_strncpy_~n := r_strncpy_#in~n;call r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset := strncpy(r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n);r_strncpy_#res.base, r_strncpy_#res.offset := r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset;havoc r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset; 2307#L41 parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset := r_strncpy_#res.base, r_strncpy_#res.offset;havoc parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset;__VERIFIER_assert_#in~cond := (if 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) < 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2306#L14 assume !(0 == __VERIFIER_assert_~cond); 2305#L14-2 call write~int(0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset + (1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0)), 1); 2304#L71 parse_expression_list_~start~0 := 1 + parse_expression_list_~i~0; 2303#L64 havoc parse_expression_list_#t~switch7;havoc parse_expression_list_#t~mem6; 2302#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2301#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 2300#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2298#L65 assume parse_expression_list_#t~switch7; 2289#L66-5 [2020-10-19 19:11:58,801 INFO L796 eck$LassoCheckResult]: Loop: 2289#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 2297#L66-1 assume parse_expression_list_#t~short10; 2288#L66-3 assume !!parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;parse_expression_list_#t~post11 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post11;havoc parse_expression_list_#t~post11; 2289#L66-5 [2020-10-19 19:11:58,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:58,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1563666499, now seen corresponding path program 1 times [2020-10-19 19:11:58,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:58,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211163379] [2020-10-19 19:11:58,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:58,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211163379] [2020-10-19 19:11:58,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:11:58,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 19:11:58,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669219043] [2020-10-19 19:11:58,847 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:11:58,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:58,848 INFO L82 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 3 times [2020-10-19 19:11:58,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:58,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185710075] [2020-10-19 19:11:58,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:58,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:58,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:58,855 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:58,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:58,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 19:11:58,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 19:11:58,899 INFO L87 Difference]: Start difference. First operand 118 states and 158 transitions. cyclomatic complexity: 49 Second operand 5 states. [2020-10-19 19:11:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:59,013 INFO L93 Difference]: Finished difference Result 121 states and 162 transitions. [2020-10-19 19:11:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 19:11:59,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 162 transitions. [2020-10-19 19:11:59,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:59,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 108 states and 147 transitions. [2020-10-19 19:11:59,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-19 19:11:59,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-19 19:11:59,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 147 transitions. [2020-10-19 19:11:59,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:59,019 INFO L691 BuchiCegarLoop]: Abstraction has 108 states and 147 transitions. [2020-10-19 19:11:59,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 147 transitions. [2020-10-19 19:11:59,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 88. [2020-10-19 19:11:59,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-19 19:11:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2020-10-19 19:11:59,023 INFO L714 BuchiCegarLoop]: Abstraction has 88 states and 119 transitions. [2020-10-19 19:11:59,023 INFO L594 BuchiCegarLoop]: Abstraction has 88 states and 119 transitions. [2020-10-19 19:11:59,023 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-19 19:11:59,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 119 transitions. [2020-10-19 19:11:59,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:11:59,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:59,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:59,025 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:59,026 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:59,026 INFO L794 eck$LassoCheckResult]: Stem: 2546#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 2517#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 2518#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 2501#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2502#L65 assume !parse_expression_list_#t~switch7; 2523#L64 havoc parse_expression_list_#t~switch7;havoc parse_expression_list_#t~mem6; 2586#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2585#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 2584#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2583#L65 assume parse_expression_list_#t~switch7; 2580#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 2579#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 2577#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9; 2574#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 2572#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 2571#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 2541#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 2537#L69-1 assume !parse_expression_list_#t~short17; 2538#L69-6 assume !parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15; 2555#L69-9 parse_expression_list_#t~short20 := 0 < parse_expression_list_~j~0; 2553#L70 assume !parse_expression_list_#t~short20; 2551#L70-2 assume !parse_expression_list_#t~short20;havoc parse_expression_list_#t~mem19;havoc parse_expression_list_#t~short20; 2549#L70-4 assume parse_expression_list_~start~0 <= parse_expression_list_~j~0;r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset, r_strncpy_#in~src.base, r_strncpy_#in~src.offset, r_strncpy_#in~n := parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset, parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0);havoc r_strncpy_#res.base, r_strncpy_#res.offset;havoc r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset, r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n;r_strncpy_~dest.base, r_strncpy_~dest.offset := r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset;r_strncpy_~src.base, r_strncpy_~src.offset := r_strncpy_#in~src.base, r_strncpy_#in~src.offset;r_strncpy_~n := r_strncpy_#in~n;call r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset := strncpy(r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n);r_strncpy_#res.base, r_strncpy_#res.offset := r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset;havoc r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset; 2542#L41 parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset := r_strncpy_#res.base, r_strncpy_#res.offset;havoc parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset;__VERIFIER_assert_#in~cond := (if 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) < 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2535#L14 assume !(0 == __VERIFIER_assert_~cond); 2530#L14-2 call write~int(0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset + (1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0)), 1); 2510#L71 parse_expression_list_~start~0 := 1 + parse_expression_list_~i~0; 2511#L64 havoc parse_expression_list_#t~switch7;havoc parse_expression_list_#t~mem6; 2557#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2556#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 2554#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2552#L65 assume parse_expression_list_#t~switch7; 2513#L66-5 [2020-10-19 19:11:59,026 INFO L796 eck$LassoCheckResult]: Loop: 2513#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 2514#L66-1 assume parse_expression_list_#t~short10; 2543#L66-3 assume !!parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;parse_expression_list_#t~post11 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post11;havoc parse_expression_list_#t~post11; 2513#L66-5 [2020-10-19 19:11:59,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:59,027 INFO L82 PathProgramCache]: Analyzing trace with hash -168608633, now seen corresponding path program 1 times [2020-10-19 19:11:59,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:59,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156323175] [2020-10-19 19:11:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 19:11:59,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156323175] [2020-10-19 19:11:59,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819787261] [2020-10-19 19:11:59,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 19:11:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:59,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-19 19:11:59,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:59,204 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-10-19 19:11:59,208 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 19:11:59,210 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 19:11:59,211 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 19:11:59,211 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:4 [2020-10-19 19:11:59,276 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2020-10-19 19:11:59,277 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 19:11:59,284 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 19:11:59,288 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-19 19:11:59,289 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:31, output treesize:27 [2020-10-19 19:11:59,437 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 10 [2020-10-19 19:11:59,439 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 19:11:59,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 19:11:59,443 INFO L545 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 19:11:59,443 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:36, output treesize:3 [2020-10-19 19:11:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 19:11:59,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 19:11:59,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-19 19:11:59,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139542380] [2020-10-19 19:11:59,450 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:11:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:59,450 INFO L82 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 4 times [2020-10-19 19:11:59,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:59,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126214270] [2020-10-19 19:11:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:59,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:59,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:59,458 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:59,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:59,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 19:11:59,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-19 19:11:59,504 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. cyclomatic complexity: 38 Second operand 9 states. [2020-10-19 19:11:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:59,682 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2020-10-19 19:11:59,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 19:11:59,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 82 transitions. [2020-10-19 19:11:59,683 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:11:59,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 0 states and 0 transitions. [2020-10-19 19:11:59,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:11:59,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:11:59,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:11:59,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:11:59,684 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:59,684 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:59,684 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:59,684 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-19 19:11:59,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:11:59,685 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:11:59,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:11:59,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:11:59 BoogieIcfgContainer [2020-10-19 19:11:59,692 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:11:59,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:11:59,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:11:59,693 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:11:59,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:47" (3/4) ... [2020-10-19 19:11:59,697 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:11:59,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:11:59,699 INFO L168 Benchmark]: Toolchain (without parser) took 13404.94 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.0 MB). Free memory was 955.9 MB in the beginning and 846.5 MB in the end (delta: 109.4 MB). Peak memory consumption was 422.4 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:59,699 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:11:59,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:59,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:11:59,701 INFO L168 Benchmark]: Boogie Preprocessor took 44.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:59,701 INFO L168 Benchmark]: RCFGBuilder took 473.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:59,702 INFO L168 Benchmark]: BuchiAutomizer took 12382.63 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.3 MB). Free memory was 1.1 GB in the beginning and 846.5 MB in the end (delta: 244.2 MB). Peak memory consumption was 423.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:59,702 INFO L168 Benchmark]: Witness Printer took 5.11 ms. Allocated memory is still 1.3 GB. Free memory is still 846.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:11:59,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 424.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 473.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12382.63 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.3 MB). Free memory was 1.1 GB in the beginning and 846.5 MB in the end (delta: 244.2 MB). Peak memory consumption was 423.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.11 ms. Allocated memory is still 1.3 GB. Free memory is still 846.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (7 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * str + unknown-#length-unknown[A] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[A] + -1 * str + -1 * start and consists of 5 locations. One deterministic module has affine ranking function j and consists of 6 locations. 7 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.3s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 10.4s. Construction of modules took 0.6s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 237 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 8. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 313 SDtfs, 527 SDslu, 625 SDs, 0 SdLazy, 547 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU3 SILI1 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital233 mio100 ax100 hnf100 lsp92 ukn63 mio100 lsp41 div100 bol100 ite100 ukn100 eq192 hnf85 smp100 dnf169 smp77 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 5 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 14 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...