./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/fragtest_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/fragtest_simple.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 5fcab3f6230f09fb280cb6a6471af8fd585365e7 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:49:41,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:49:41,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:49:41,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:49:41,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:49:41,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:49:41,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:49:41,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:49:41,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:49:41,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:49:41,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:49:41,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:49:41,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:49:41,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:49:41,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:49:41,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:49:41,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:49:41,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:49:41,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:49:41,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:49:41,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:49:41,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:49:41,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:49:41,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:49:41,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:49:41,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:49:41,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:49:41,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:49:41,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:49:41,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:49:41,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:49:41,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:49:41,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:49:41,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:49:41,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:49:41,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:49:41,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:49:41,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:49:41,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:49:41,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:49:41,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:49:41,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 04:49:42,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:49:42,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:49:42,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:49:42,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:49:42,059 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:49:42,060 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:49:42,060 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:49:42,060 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:49:42,061 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:49:42,061 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:49:42,062 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:49:42,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:49:42,063 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:49:42,063 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:49:42,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:49:42,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:49:42,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:49:42,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:49:42,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:49:42,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:49:42,065 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:49:42,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:49:42,065 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:49:42,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:49:42,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:49:42,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:49:42,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:49:42,066 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:49:42,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:49:42,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:49:42,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:49:42,067 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:49:42,069 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:49:42,069 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fcab3f6230f09fb280cb6a6471af8fd585365e7 [2020-10-26 04:49:42,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:49:42,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:49:42,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:49:42,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:49:42,595 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:49:42,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/fragtest_simple.i [2020-10-26 04:49:42,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfe7fd07d/61e519c21f794cd78d7b50b14e6ca7e2/FLAG62ace8ee6 [2020-10-26 04:49:43,249 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:49:43,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/fragtest_simple.i [2020-10-26 04:49:43,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfe7fd07d/61e519c21f794cd78d7b50b14e6ca7e2/FLAG62ace8ee6 [2020-10-26 04:49:43,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfe7fd07d/61e519c21f794cd78d7b50b14e6ca7e2 [2020-10-26 04:49:43,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:49:43,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:49:43,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:49:43,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:49:43,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:49:43,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:43,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43, skipping insertion in model container [2020-10-26 04:49:43,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:43,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:49:43,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:49:43,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:49:43,912 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:49:43,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:49:43,951 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:49:43,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43 WrapperNode [2020-10-26 04:49:43,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:49:43,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:49:43,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:49:43,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:49:43,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:43,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:43,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:49:43,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:49:43,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:49:43,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:49:44,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:44,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:44,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:44,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:44,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:44,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:44,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (1/1) ... [2020-10-26 04:49:44,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:49:44,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:49:44,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:49:44,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:49:44,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (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 [2020-10-26 04:49:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:49:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:49:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:49:44,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:49:44,380 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:49:44,380 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-26 04:49:44,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:49:44 BoogieIcfgContainer [2020-10-26 04:49:44,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:49:44,384 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:49:44,385 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:49:44,390 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:49:44,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:49:44,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:49:43" (1/3) ... [2020-10-26 04:49:44,392 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e60e411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:49:44, skipping insertion in model container [2020-10-26 04:49:44,393 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:49:44,393 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:43" (2/3) ... [2020-10-26 04:49:44,394 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e60e411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:49:44, skipping insertion in model container [2020-10-26 04:49:44,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:49:44,394 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:49:44" (3/3) ... [2020-10-26 04:49:44,396 INFO L373 chiAutomizerObserver]: Analyzing ICFG fragtest_simple.i [2020-10-26 04:49:44,461 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:49:44,462 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:49:44,462 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:49:44,462 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:49:44,462 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:49:44,463 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:49:44,463 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:49:44,463 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:49:44,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-26 04:49:44,504 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-26 04:49:44,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:49:44,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:49:44,515 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:49:44,516 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:49:44,516 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:49:44,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-26 04:49:44,520 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-26 04:49:44,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:49:44,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:49:44,521 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:49:44,521 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:49:44,529 INFO L794 eck$LassoCheckResult]: Stem: 12#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(9); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L31-2true [2020-10-26 04:49:44,530 INFO L796 eck$LassoCheckResult]: Loop: 7#L31-2true assume !!(0 != main_#t~nondet4 && main_~i~0 <= 1000000);havoc main_#t~nondet4;main_~i~0 := 1 + main_~i~0; 7#L31-2true [2020-10-26 04:49:44,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:44,542 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-26 04:49:44,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:44,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598044288] [2020-10-26 04:49:44,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:44,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:44,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:44,730 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:44,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:44,733 INFO L82 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2020-10-26 04:49:44,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:44,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057070690] [2020-10-26 04:49:44,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:44,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:44,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:44,747 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:44,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:44,750 INFO L82 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2020-10-26 04:49:44,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:44,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055976981] [2020-10-26 04:49:44,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:44,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:44,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:44,789 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:44,920 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:49:44,921 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:49:44,921 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:49:44,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:49:44,922 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:49:44,922 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:44,922 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:49:44,922 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:49:44,923 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2020-10-26 04:49:44,923 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:49:44,923 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:49:44,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:44,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:45,098 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:49:45,100 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:45,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:49:45,114 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:45,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:49:45,167 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:45,217 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:49:45,225 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:49:45,226 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:49:45,226 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:49:45,226 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:49:45,226 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:49:45,226 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:45,227 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:49:45,227 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:49:45,227 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2020-10-26 04:49:45,227 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:49:45,227 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:49:45,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:45,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:45,349 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:49:45,357 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 04:49:45,366 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 [2020-10-26 04:49:45,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:49:45,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:49:45,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:49:45,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:49:45,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:49:45,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:49:45,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:45,388 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:49:45,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:49:45,403 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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) [2020-10-26 04:49:45,414 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:49:45,414 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:49:45,415 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:49:45,416 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:45,453 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:49:45,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:45,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:49:45,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:49:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:45,546 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:49:45,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:49:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:49:45,566 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-26 04:49:45,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 2 states. [2020-10-26 04:49:45,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 2 states. Result 36 states and 56 transitions. Complement of second has 6 states. [2020-10-26 04:49:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:49:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-26 04:49:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-10-26 04:49:45,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-26 04:49:45,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:45,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-26 04:49:45,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:45,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-26 04:49:45,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:45,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 56 transitions. [2020-10-26 04:49:45,681 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-26 04:49:45,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 15 states and 22 transitions. [2020-10-26 04:49:45,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-26 04:49:45,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-26 04:49:45,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2020-10-26 04:49:45,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:49:45,688 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2020-10-26 04:49:45,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2020-10-26 04:49:45,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-26 04:49:45,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-26 04:49:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2020-10-26 04:49:45,716 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2020-10-26 04:49:45,716 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2020-10-26 04:49:45,716 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:49:45,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 22 transitions. [2020-10-26 04:49:45,717 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-26 04:49:45,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:49:45,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:49:45,718 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:49:45,718 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:49:45,719 INFO L794 eck$LassoCheckResult]: Stem: 99#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(9); 97#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet3;havoc main_#t~nondet3; 94#L31-2 assume !(0 != main_#t~nondet4 && main_~i~0 <= 1000000);havoc main_#t~nondet4; 89#L31-3 assume !(main_~i~0 > main_~pvlen~0); 90#L34-1 main_~i~0 := 0; 100#L38-2 [2020-10-26 04:49:45,719 INFO L796 eck$LassoCheckResult]: Loop: 100#L38-2 assume !!(0 != main_#t~nondet5 && main_~i~0 <= 1000000);havoc main_#t~nondet5;main_~tmp___1~0 := main_~i~0;main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 100#L38-2 [2020-10-26 04:49:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:45,720 INFO L82 PathProgramCache]: Analyzing trace with hash 28697992, now seen corresponding path program 1 times [2020-10-26 04:49:45,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:45,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885752440] [2020-10-26 04:49:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:45,734 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:45,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:45,750 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:45,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:45,751 INFO L82 PathProgramCache]: Analyzing trace with hash 61, now seen corresponding path program 1 times [2020-10-26 04:49:45,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:45,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392831517] [2020-10-26 04:49:45,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:45,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:45,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:45,762 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:45,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:45,763 INFO L82 PathProgramCache]: Analyzing trace with hash 889637782, now seen corresponding path program 1 times [2020-10-26 04:49:45,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:45,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439579066] [2020-10-26 04:49:45,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:45,786 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:45,813 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:45,824 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:45,871 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:49:45,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:49:45,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:49:45,871 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:49:45,872 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:49:45,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:45,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:49:45,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:49:45,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2020-10-26 04:49:45,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:49:45,872 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:49:45,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:45,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:45,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:46,013 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:49:46,013 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-26 04:49:46,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:49:46,030 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:46,038 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:49:46,038 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=-5} Honda state: {ULTIMATE.start_main_#t~nondet5=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-10-26 04:49:46,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:49:46,075 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-10-26 04:49:46,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:49:46,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:49:46,160 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:49:46,162 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:49:46,162 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:49:46,163 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:49:46,163 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:49:46,163 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:49:46,163 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:46,163 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:49:46,163 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:49:46,163 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2020-10-26 04:49:46,163 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:49:46,163 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:49:46,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:46,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:46,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:46,296 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:49:46,297 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 04:49:46,307 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 [2020-10-26 04:49:46,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:49:46,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:49:46,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:49:46,310 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:49:46,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:49:46,312 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-26 04:49:46,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:46,318 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 [2020-10-26 04:49:46,389 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 [2020-10-26 04:49:46,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:49:46,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:49:46,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:49:46,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:49:46,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:49:46,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:49:46,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:49:46,417 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:49:46,434 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:49:46,434 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. 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) [2020-10-26 04:49:46,440 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:49:46,440 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:49:46,440 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:49:46,441 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:46,468 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:49:46,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:46,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:49:46,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:49:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:46,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:49:46,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:49:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:49:46,537 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-26 04:49:46,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 10 Second operand 2 states. [2020-10-26 04:49:46,567 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 10. Second operand 2 states. Result 35 states and 49 transitions. Complement of second has 6 states. [2020-10-26 04:49:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:49:46,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-26 04:49:46,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-10-26 04:49:46,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-26 04:49:46,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:46,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-26 04:49:46,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:46,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-26 04:49:46,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:46,572 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 49 transitions. [2020-10-26 04:49:46,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-10-26 04:49:46,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 26 transitions. [2020-10-26 04:49:46,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-26 04:49:46,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-26 04:49:46,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-10-26 04:49:46,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:49:46,576 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-26 04:49:46,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-10-26 04:49:46,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-26 04:49:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 04:49:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-10-26 04:49:46,602 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 04:49:46,602 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 04:49:46,602 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:49:46,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-10-26 04:49:46,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-10-26 04:49:46,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:49:46,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:49:46,604 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:49:46,605 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 04:49:46,605 INFO L794 eck$LassoCheckResult]: Stem: 188#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(9); 186#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet3;havoc main_#t~nondet3; 182#L31-2 assume !(0 != main_#t~nondet4 && main_~i~0 <= 1000000);havoc main_#t~nondet4; 178#L31-3 assume !(main_~i~0 > main_~pvlen~0); 179#L34-1 main_~i~0 := 0; 190#L38-2 assume !(0 != main_#t~nondet5 && main_~i~0 <= 1000000);havoc main_#t~nondet5; 191#L38-3 main_~j~0 := 0;main_~n~0 := main_~i~0; 189#L45-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 181#L18 assume !(0 == __VERIFIER_assert_~cond); 176#L18-2 [2020-10-26 04:49:46,605 INFO L796 eck$LassoCheckResult]: Loop: 176#L18-2 main_~k~0 := main_~k~0 - 1;main_~i~0 := main_~i~0 - 1;main_~j~0 := 1 + main_~j~0; 177#L50 assume !(main_~j~0 >= main_~n~0); 180#L45-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 193#L18 assume !(0 == __VERIFIER_assert_~cond); 176#L18-2 [2020-10-26 04:49:46,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:46,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1044045572, now seen corresponding path program 1 times [2020-10-26 04:49:46,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:46,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460811277] [2020-10-26 04:49:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:46,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:46,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:46,665 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:46,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:46,666 INFO L82 PathProgramCache]: Analyzing trace with hash 2774836, now seen corresponding path program 1 times [2020-10-26 04:49:46,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:46,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855551691] [2020-10-26 04:49:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:46,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:46,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:46,680 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:46,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:46,681 INFO L82 PathProgramCache]: Analyzing trace with hash 674267823, now seen corresponding path program 1 times [2020-10-26 04:49:46,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:46,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540444601] [2020-10-26 04:49:46,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:49:46,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540444601] [2020-10-26 04:49:46,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:49:46,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 04:49:46,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717532708] [2020-10-26 04:49:46,928 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 25 [2020-10-26 04:49:46,931 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:49:46,931 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:49:46,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:49:46,931 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:49:46,932 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:49:46,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:46,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:49:46,932 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:49:46,932 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration3_Loop [2020-10-26 04:49:46,932 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:49:46,932 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:49:46,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:46,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:46,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:46,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:47,116 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:49:47,116 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:47,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:49:47,125 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:47,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:49:47,169 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:47,550 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:49:47,552 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:49:47,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:49:47,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:49:47,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:49:47,552 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:49:47,552 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:47,553 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:49:47,553 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:49:47,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration3_Loop [2020-10-26 04:49:47,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:49:47,553 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:49:47,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:47,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:47,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:47,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:47,651 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:49:47,651 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:47,665 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 [2020-10-26 04:49:47,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:49:47,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:49:47,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:49:47,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:49:47,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:49:47,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:49:47,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:47,673 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:49:47,683 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-26 04:49:47,684 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:47,696 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:49:47,697 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:49:47,697 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:49:47,697 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-10-26 04:49:47,727 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:49:47,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:47,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:49:47,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:49:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:47,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:49:47,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:49:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:49:47,925 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 [2020-10-26 04:49:47,925 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 10 Second operand 4 states. [2020-10-26 04:49:47,957 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 31 states and 40 transitions. Complement of second has 7 states. [2020-10-26 04:49:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:49:47,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:49:47,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2020-10-26 04:49:47,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 9 letters. Loop has 4 letters. [2020-10-26 04:49:47,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:47,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 13 letters. Loop has 4 letters. [2020-10-26 04:49:47,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:47,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 9 letters. Loop has 8 letters. [2020-10-26 04:49:47,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:47,963 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2020-10-26 04:49:47,967 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:49:47,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-10-26 04:49:47,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:49:47,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:49:47,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:49:47,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:49:47,970 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:49:47,970 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:49:47,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:49:47,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:49:47,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:49:47,976 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-10-26 04:49:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:49:47,980 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-26 04:49:47,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 04:49:47,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-26 04:49:47,980 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:49:47,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:49:47,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:49:47,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:49:47,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:49:47,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:49:47,982 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:49:47,982 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:49:47,982 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:49:47,982 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 04:49:47,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:49:47,982 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:49:47,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:49:47,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:49:47 BoogieIcfgContainer [2020-10-26 04:49:47,990 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:49:47,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:49:47,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:49:47,991 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:49:47,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:49:44" (3/4) ... [2020-10-26 04:49:47,996 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:49:47,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:49:48,001 INFO L168 Benchmark]: Toolchain (without parser) took 4362.04 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 31.4 MB in the beginning and 55.7 MB in the end (delta: -24.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:48,003 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 41.9 MB. Free memory was 19.7 MB in the beginning and 19.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:49:48,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.09 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 34.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:48,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.85 ms. Allocated memory is still 54.5 MB. Free memory was 34.4 MB in the beginning and 33.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:48,013 INFO L168 Benchmark]: Boogie Preprocessor took 26.44 ms. Allocated memory is still 54.5 MB. Free memory was 33.0 MB in the beginning and 31.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:49:48,014 INFO L168 Benchmark]: RCFGBuilder took 359.44 ms. Allocated memory is still 54.5 MB. Free memory was 31.9 MB in the beginning and 33.5 MB in the end (delta: -1.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:48,015 INFO L168 Benchmark]: BuchiAutomizer took 3606.01 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 33.5 MB in the beginning and 56.4 MB in the end (delta: -23.0 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:48,015 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 81.8 MB. Free memory was 56.4 MB in the beginning and 55.7 MB in the end (delta: 707.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:49:48,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 41.9 MB. Free memory was 19.7 MB in the beginning and 19.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.09 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 34.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.85 ms. Allocated memory is still 54.5 MB. Free memory was 34.4 MB in the beginning and 33.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.44 ms. Allocated memory is still 54.5 MB. Free memory was 33.0 MB in the beginning and 31.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 359.44 ms. Allocated memory is still 54.5 MB. Free memory was 31.9 MB in the beginning and 33.5 MB in the end (delta: -1.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3606.01 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 33.5 MB in the beginning and 56.4 MB in the end (delta: -23.0 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.32 ms. Allocated memory is still 81.8 MB. Free memory was 56.4 MB in the beginning and 55.7 MB in the end (delta: 707.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function n + -1 * j and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 30 SDtfs, 31 SDslu, 12 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf98 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf92 smp100 dnf100 smp100 tf112 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...