./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/strstr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-dietlibc/strstr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 938c367f37ddd298c829be75f27a69a6e9a1154b 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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 04:18:27,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:18:27,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:18:27,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:18:27,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:18:27,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:18:27,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:18:27,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:18:27,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:18:27,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:18:27,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:18:27,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:18:27,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:18:27,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:18:27,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:18:27,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:18:27,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:18:27,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:18:27,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:18:27,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:18:27,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:18:27,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:18:27,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:18:27,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:18:27,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:18:27,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:18:27,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:18:27,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:18:27,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:18:27,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:18:27,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:18:27,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:18:27,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:18:27,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:18:27,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:18:27,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:18:27,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:18:27,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:18:27,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:18:27,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:18:27,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:18:27,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:18:27,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:18:27,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:18:27,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:18:27,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:18:27,477 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:18:27,477 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:18:27,477 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:18:27,478 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:18:27,478 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:18:27,479 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:18:27,480 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:18:27,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:18:27,480 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:18:27,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:18:27,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:18:27,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:18:27,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:18:27,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:18:27,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:18:27,482 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:18:27,482 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:18:27,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:18:27,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:18:27,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:18:27,483 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:18:27,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:18:27,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:18:27,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:18:27,484 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:18:27,486 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:18:27,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 938c367f37ddd298c829be75f27a69a6e9a1154b [2020-10-26 04:18:27,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:18:27,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:18:27,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:18:27,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:18:27,991 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:18:27,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strstr.i [2020-10-26 04:18:28,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87b88dfcf/fe80511128f348169ca558ff98c977f1/FLAG78c3f2722 [2020-10-26 04:18:28,687 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:18:28,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strstr.i [2020-10-26 04:18:28,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87b88dfcf/fe80511128f348169ca558ff98c977f1/FLAG78c3f2722 [2020-10-26 04:18:29,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87b88dfcf/fe80511128f348169ca558ff98c977f1 [2020-10-26 04:18:29,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:18:29,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:18:29,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:18:29,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:18:29,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:18:29,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40054a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29, skipping insertion in model container [2020-10-26 04:18:29,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:18:29,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:18:29,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:18:29,472 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:18:29,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:18:29,616 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:18:29,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29 WrapperNode [2020-10-26 04:18:29,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:18:29,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:18:29,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:18:29,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:18:29,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:18:29,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:18:29,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:18:29,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:18:29,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (1/1) ... [2020-10-26 04:18:29,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:18:29,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:18:29,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:18:29,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:18:29,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (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 04:18:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 04:18:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:18:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:18:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:18:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:18:29,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:18:30,362 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:18:30,362 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-26 04:18:30,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:18:30 BoogieIcfgContainer [2020-10-26 04:18:30,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:18:30,366 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:18:30,366 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:18:30,370 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:18:30,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:18:30,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:18:29" (1/3) ... [2020-10-26 04:18:30,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1eaeb133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:18:30, skipping insertion in model container [2020-10-26 04:18:30,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:18:30,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:29" (2/3) ... [2020-10-26 04:18:30,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1eaeb133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:18:30, skipping insertion in model container [2020-10-26 04:18:30,374 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:18:30,374 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:18:30" (3/3) ... [2020-10-26 04:18:30,375 INFO L373 chiAutomizerObserver]: Analyzing ICFG strstr.i [2020-10-26 04:18:30,425 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:18:30,425 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:18:30,426 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:18:30,426 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:18:30,426 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:18:30,426 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:18:30,426 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:18:30,426 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:18:30,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states. [2020-10-26 04:18:30,466 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-10-26 04:18:30,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:30,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:30,474 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:18:30,474 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:30,474 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:18:30,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states. [2020-10-26 04:18:30,478 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-10-26 04:18:30,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:30,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:30,479 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:18:30,479 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:30,487 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 14#L541true assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 25#L545true assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 19#L508true assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 23#L509-4true [2020-10-26 04:18:30,488 INFO L796 eck$LassoCheckResult]: Loop: 23#L509-4true call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 29#L509-1true assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 34#L509-3true strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 23#L509-4true [2020-10-26 04:18:30,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:30,495 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2020-10-26 04:18:30,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:30,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661093708] [2020-10-26 04:18:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:30,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:30,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:30,693 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:30,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:30,695 INFO L82 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 1 times [2020-10-26 04:18:30,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:30,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463888201] [2020-10-26 04:18:30,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:30,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:30,712 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:30,715 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:30,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:30,717 INFO L82 PathProgramCache]: Analyzing trace with hash 179566670, now seen corresponding path program 1 times [2020-10-26 04:18:30,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:30,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392563603] [2020-10-26 04:18:30,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:30,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:30,781 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:30,794 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:31,366 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 96 [2020-10-26 04:18:31,494 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 04:18:31,507 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:18:31,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:18:31,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:18:31,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:18:31,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:18:31,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:31,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:18:31,509 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:18:31,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration1_Lasso [2020-10-26 04:18:31,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:18:31,509 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:18:31,535 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 04:18:31,548 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 04:18:31,553 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 04:18:31,555 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 04:18:31,564 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 04:18:31,567 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 04:18:31,570 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 04:18:31,572 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 04:18:31,575 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 04:18:31,577 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 04:18:31,580 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 04:18:31,583 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 04:18:31,586 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 04:18:31,882 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-10-26 04:18:31,966 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 04:18:31,970 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 04:18:31,975 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 04:18:31,984 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 04:18:31,987 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 04:18:31,990 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 04:18:31,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:32,002 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 04:18:32,005 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 04:18:32,008 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 04:18:32,012 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 04:18:32,016 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 04:18:32,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:32,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:32,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:32,514 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:18:32,519 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:32,531 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 04:18:32,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:32,548 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 [2020-10-26 04:18:32,581 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 04:18:32,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:32,586 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 [2020-10-26 04:18:32,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:32,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:32,629 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 [2020-10-26 04:18:32,655 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 04:18:32,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:32,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:32,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:32,706 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 [2020-10-26 04:18:32,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:32,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:32,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:32,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:32,756 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) [2020-10-26 04:18:32,801 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 04:18:32,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:32,806 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) [2020-10-26 04:18:32,846 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 04:18:32,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,849 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 04:18:32,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 04:18:32,888 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 04:18:32,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:32,893 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 [2020-10-26 04:18:32,917 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 04:18:32,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:32,921 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 [2020-10-26 04:18:32,947 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 04:18:32,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:32,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:32,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:32,961 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 [2020-10-26 04:18:32,987 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 04:18:32,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:32,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:32,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:32,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:32,992 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:32,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:32,997 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 [2020-10-26 04:18:33,020 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 04:18:33,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:33,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:33,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:33,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:33,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:33,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:33,040 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 04:18:33,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:33,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:33,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:33,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:33,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:33,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:33,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:33,101 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:18:33,292 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-10-26 04:18:33,292 INFO L444 ModelExtractionUtils]: 19 out of 31 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-26 04:18:33,301 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:18:33,307 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:18:33,307 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:18:33,308 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_1, ULTIMATE.start_strlen_~s.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_1 - 1*ULTIMATE.start_strlen_~s.offset Supporting invariants [] [2020-10-26 04:18:33,390 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-10-26 04:18:33,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:18:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:33,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:18:33,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:33,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:18:33,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:33,538 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 04:18:33,558 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 [2020-10-26 04:18:33,560 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states. Second operand 4 states. [2020-10-26 04:18:33,685 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states.. Second operand 4 states. Result 90 states and 130 transitions. Complement of second has 7 states. [2020-10-26 04:18:33,686 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 [2020-10-26 04:18:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:18:33,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2020-10-26 04:18:33,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 3 letters. [2020-10-26 04:18:33,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:33,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 8 letters. Loop has 3 letters. [2020-10-26 04:18:33,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:33,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 6 letters. [2020-10-26 04:18:33,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:33,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 130 transitions. [2020-10-26 04:18:33,702 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2020-10-26 04:18:33,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 47 states and 62 transitions. [2020-10-26 04:18:33,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2020-10-26 04:18:33,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2020-10-26 04:18:33,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2020-10-26 04:18:33,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:33,711 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-26 04:18:33,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2020-10-26 04:18:33,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-26 04:18:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-26 04:18:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-10-26 04:18:33,740 INFO L714 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-26 04:18:33,740 INFO L594 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-26 04:18:33,740 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:18:33,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 62 transitions. [2020-10-26 04:18:33,742 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2020-10-26 04:18:33,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:33,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:33,743 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:18:33,743 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:33,743 INFO L794 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 224#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 225#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 232#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 237#L508 assume strlen_~s.base == 0 && strlen_~s.offset == 0;strlen_#res := 0; 239#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 252#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 228#L509-10 [2020-10-26 04:18:33,743 INFO L796 eck$LassoCheckResult]: Loop: 228#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 229#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 251#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 228#L509-10 [2020-10-26 04:18:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:33,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1806906284, now seen corresponding path program 1 times [2020-10-26 04:18:33,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:33,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440776217] [2020-10-26 04:18:33,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:18:33,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440776217] [2020-10-26 04:18:33,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:18:33,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:18:33,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438546517] [2020-10-26 04:18:33,806 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:18:33,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:33,807 INFO L82 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 1 times [2020-10-26 04:18:33,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:33,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828328575] [2020-10-26 04:18:33,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:33,813 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:33,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:33,820 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:33,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:18:33,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:18:33,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:18:33,918 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. cyclomatic complexity: 20 Second operand 3 states. [2020-10-26 04:18:33,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:18:33,938 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2020-10-26 04:18:33,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:18:33,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2020-10-26 04:18:33,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-26 04:18:33,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2020-10-26 04:18:33,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-10-26 04:18:33,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-10-26 04:18:33,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2020-10-26 04:18:33,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:33,943 INFO L691 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-10-26 04:18:33,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2020-10-26 04:18:33,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-26 04:18:33,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-26 04:18:33,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2020-10-26 04:18:33,946 INFO L714 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-10-26 04:18:33,947 INFO L594 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-10-26 04:18:33,947 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:18:33,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2020-10-26 04:18:33,948 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-26 04:18:33,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:33,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:33,949 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:18:33,949 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:33,949 INFO L794 eck$LassoCheckResult]: Stem: 324#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 302#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 303#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 311#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 318#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 319#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 321#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 323#L509-5 strlen_#res := strlen_~i~0; 308#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 309#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 305#L509-10 [2020-10-26 04:18:33,949 INFO L796 eck$LassoCheckResult]: Loop: 305#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 310#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 304#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 305#L509-10 [2020-10-26 04:18:33,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:33,950 INFO L82 PathProgramCache]: Analyzing trace with hash 764823385, now seen corresponding path program 1 times [2020-10-26 04:18:33,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:33,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479606529] [2020-10-26 04:18:33,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:33,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:34,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:34,010 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:34,011 INFO L82 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 2 times [2020-10-26 04:18:34,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:34,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561932566] [2020-10-26 04:18:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:34,017 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:34,021 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:34,023 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:34,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:34,024 INFO L82 PathProgramCache]: Analyzing trace with hash 52000116, now seen corresponding path program 1 times [2020-10-26 04:18:34,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:34,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147909670] [2020-10-26 04:18:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:34,057 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:34,116 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:34,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:34,740 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2020-10-26 04:18:34,889 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-26 04:18:34,892 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:18:34,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:18:34,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:18:34,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:18:34,893 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:18:34,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:34,893 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:18:34,893 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:18:34,893 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration3_Lasso [2020-10-26 04:18:34,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:18:34,894 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:18:34,906 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 04:18:34,911 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 04:18:34,913 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 04:18:34,915 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 04:18:34,918 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 04:18:34,926 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 04:18:34,930 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 04:18:34,934 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 04:18:34,937 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 04:18:34,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:34,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:34,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:34,947 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 04:18:34,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:34,952 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 04:18:34,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:34,959 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 04:18:34,963 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 04:18:34,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:34,972 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 04:18:34,974 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 04:18:34,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:35,274 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-26 04:18:35,330 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 04:18:35,332 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 04:18:35,335 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 04:18:35,337 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 04:18:35,339 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 04:18:35,341 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 04:18:35,881 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:18:35,881 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 04:18:35,894 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:35,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:35,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:35,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:35,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:35,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:35,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:35,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:35,900 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 [2020-10-26 04:18:35,927 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 04:18:35,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:35,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:35,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:35,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:35,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:35,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:35,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:35,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:35,956 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 [2020-10-26 04:18:35,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:35,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:35,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:35,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:35,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:35,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:35,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:35,966 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,003 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 04:18:36,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:36,049 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 04:18:36,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:36,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:36,094 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 [2020-10-26 04:18:36,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,099 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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,127 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 04:18:36,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:36,137 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:36,141 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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:36,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:36,195 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 04:18:36,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:36,228 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 04:18:36,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,233 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:36,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,286 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 04:18:36,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,291 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) [2020-10-26 04:18:36,315 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,318 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 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 [2020-10-26 04:18:36,341 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 04:18:36,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,349 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 [2020-10-26 04:18:36,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:36,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:36,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:36,385 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 [2020-10-26 04:18:36,409 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 04:18:36,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,414 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 [2020-10-26 04:18:36,437 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 04:18:36,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,440 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 [2020-10-26 04:18:36,462 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 04:18:36,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:36,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:36,470 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 [2020-10-26 04:18:36,502 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 04:18:36,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,506 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) [2020-10-26 04:18:36,529 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,534 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 [2020-10-26 04:18:36,556 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 04:18:36,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:36,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:36,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:36,559 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 [2020-10-26 04:18:36,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:36,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:36,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:36,589 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 [2020-10-26 04:18:36,613 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 04:18:36,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:36,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:36,619 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 [2020-10-26 04:18:36,642 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 04:18:36,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:36,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:36,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:36,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:36,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:36,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:36,677 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:18:36,720 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-26 04:18:36,720 INFO L444 ModelExtractionUtils]: 39 out of 49 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:36,723 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:36,736 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:18:36,736 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:18:36,736 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_2, ULTIMATE.start_strlen_~s.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_2 - 1*ULTIMATE.start_strlen_~s.offset Supporting invariants [] [2020-10-26 04:18:36,802 INFO L297 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2020-10-26 04:18:36,805 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:18:36,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:36,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:18:36,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:36,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:18:36,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:36,937 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 04:18:36,938 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-10-26 04:18:36,938 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 10 Second operand 6 states. [2020-10-26 04:18:37,095 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 10. Second operand 6 states. Result 57 states and 72 transitions. Complement of second has 7 states. [2020-10-26 04:18:37,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:18:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-26 04:18:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 48 transitions. [2020-10-26 04:18:37,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-26 04:18:37,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:37,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-26 04:18:37,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:37,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-26 04:18:37,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:37,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 72 transitions. [2020-10-26 04:18:37,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2020-10-26 04:18:37,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 43 states and 54 transitions. [2020-10-26 04:18:37,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-10-26 04:18:37,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2020-10-26 04:18:37,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2020-10-26 04:18:37,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:37,104 INFO L691 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2020-10-26 04:18:37,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2020-10-26 04:18:37,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2020-10-26 04:18:37,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-26 04:18:37,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2020-10-26 04:18:37,107 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-10-26 04:18:37,107 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-10-26 04:18:37,107 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 04:18:37,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2020-10-26 04:18:37,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-26 04:18:37,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:37,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:37,109 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:18:37,109 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 04:18:37,110 INFO L794 eck$LassoCheckResult]: Stem: 534#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 514#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 515#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 523#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 528#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 529#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 531#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 533#L509-5 strlen_#res := strlen_~i~0; 516#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 517#L508-2 assume strlen_~s.base == 0 && strlen_~s.offset == 0;strlen_#res := 0; 521#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 522#L529 assume !(0 == strstr_~nl~0 % 4294967296); 524#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 525#L531-3 [2020-10-26 04:18:37,110 INFO L796 eck$LassoCheckResult]: Loop: 525#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 512#L532 assume !strstr_#t~short17; 513#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 527#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 525#L531-3 [2020-10-26 04:18:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:37,111 INFO L82 PathProgramCache]: Analyzing trace with hash 51953446, now seen corresponding path program 1 times [2020-10-26 04:18:37,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:37,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128489003] [2020-10-26 04:18:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:37,156 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 04:18:37,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128489003] [2020-10-26 04:18:37,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:18:37,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 04:18:37,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153762779] [2020-10-26 04:18:37,157 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:18:37,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:37,158 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 1 times [2020-10-26 04:18:37,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:37,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98632165] [2020-10-26 04:18:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:37,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:37,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:37,176 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:37,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:18:37,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:18:37,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:18:37,275 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-10-26 04:18:37,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:18:37,312 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2020-10-26 04:18:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:18:37,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2020-10-26 04:18:37,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-26 04:18:37,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 38 transitions. [2020-10-26 04:18:37,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-10-26 04:18:37,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-26 04:18:37,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2020-10-26 04:18:37,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:37,315 INFO L691 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-26 04:18:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2020-10-26 04:18:37,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-26 04:18:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-26 04:18:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-26 04:18:37,318 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-26 04:18:37,318 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-26 04:18:37,318 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 04:18:37,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2020-10-26 04:18:37,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-26 04:18:37,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:37,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:37,320 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:18:37,320 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 04:18:37,320 INFO L794 eck$LassoCheckResult]: Stem: 606#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 582#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 583#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 593#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 600#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 601#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 603#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 605#L509-5 strlen_#res := strlen_~i~0; 588#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 589#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 590#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 592#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 596#L509-11 strlen_#res := strlen_~i~0; 594#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 595#L529 assume !(0 == strstr_~nl~0 % 4294967296); 597#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 598#L531-3 [2020-10-26 04:18:37,320 INFO L796 eck$LassoCheckResult]: Loop: 598#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 586#L532 assume !strstr_#t~short17; 587#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 599#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 598#L531-3 [2020-10-26 04:18:37,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:37,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1349410205, now seen corresponding path program 1 times [2020-10-26 04:18:37,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:37,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812038778] [2020-10-26 04:18:37,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:37,393 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 04:18:37,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812038778] [2020-10-26 04:18:37,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:18:37,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 04:18:37,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170023393] [2020-10-26 04:18:37,395 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:18:37,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:37,395 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 2 times [2020-10-26 04:18:37,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:37,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399781218] [2020-10-26 04:18:37,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:37,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:37,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:37,408 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:37,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:18:37,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:18:37,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:18:37,526 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-10-26 04:18:37,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:18:37,596 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-10-26 04:18:37,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 04:18:37,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 74 transitions. [2020-10-26 04:18:37,598 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2020-10-26 04:18:37,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 47 states and 56 transitions. [2020-10-26 04:18:37,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2020-10-26 04:18:37,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-10-26 04:18:37,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 56 transitions. [2020-10-26 04:18:37,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:37,599 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 56 transitions. [2020-10-26 04:18:37,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 56 transitions. [2020-10-26 04:18:37,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 31. [2020-10-26 04:18:37,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-26 04:18:37,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2020-10-26 04:18:37,603 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2020-10-26 04:18:37,603 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2020-10-26 04:18:37,603 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-26 04:18:37,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2020-10-26 04:18:37,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-26 04:18:37,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:37,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:37,605 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:18:37,605 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 04:18:37,606 INFO L794 eck$LassoCheckResult]: Stem: 715#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 695#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 696#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 704#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 709#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 710#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 711#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 716#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 712#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 713#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 714#L509-5 strlen_#res := strlen_~i~0; 697#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 698#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 699#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 700#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 705#L509-11 strlen_#res := strlen_~i~0; 702#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 703#L529 assume !(0 == strstr_~nl~0 % 4294967296); 706#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 707#L531-3 [2020-10-26 04:18:37,606 INFO L796 eck$LassoCheckResult]: Loop: 707#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 693#L532 assume !strstr_#t~short17; 694#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 708#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 707#L531-3 [2020-10-26 04:18:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:37,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1796108770, now seen corresponding path program 1 times [2020-10-26 04:18:37,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:37,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254478361] [2020-10-26 04:18:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:18:37,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254478361] [2020-10-26 04:18:37,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287531658] [2020-10-26 04:18:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:18:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:37,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:18:37,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-26 04:18:37,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:18:37,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2020-10-26 04:18:37,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749792426] [2020-10-26 04:18:37,919 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:18:37,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:37,919 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 3 times [2020-10-26 04:18:37,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:37,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375014533] [2020-10-26 04:18:37,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:37,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:37,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:37,931 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:38,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:18:38,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 04:18:38,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-26 04:18:38,058 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand 6 states. [2020-10-26 04:18:38,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:18:38,138 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-10-26 04:18:38,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 04:18:38,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 43 transitions. [2020-10-26 04:18:38,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-26 04:18:38,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 38 transitions. [2020-10-26 04:18:38,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-10-26 04:18:38,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-26 04:18:38,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2020-10-26 04:18:38,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:38,142 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-10-26 04:18:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2020-10-26 04:18:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-10-26 04:18:38,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-26 04:18:38,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-10-26 04:18:38,144 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-10-26 04:18:38,144 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-10-26 04:18:38,144 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-26 04:18:38,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2020-10-26 04:18:38,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-26 04:18:38,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:38,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:38,146 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] [2020-10-26 04:18:38,146 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 04:18:38,146 INFO L794 eck$LassoCheckResult]: Stem: 860#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 836#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 837#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 847#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 854#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 855#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 856#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 861#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 857#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 858#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 859#L509-5 strlen_#res := strlen_~i~0; 842#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 843#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 844#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 845#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 838#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 839#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 846#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 850#L509-11 strlen_#res := strlen_~i~0; 848#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 849#L529 assume !(0 == strstr_~nl~0 % 4294967296); 851#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 852#L531-3 [2020-10-26 04:18:38,146 INFO L796 eck$LassoCheckResult]: Loop: 852#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 840#L532 assume !strstr_#t~short17; 841#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 853#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 852#L531-3 [2020-10-26 04:18:38,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:38,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1624521053, now seen corresponding path program 1 times [2020-10-26 04:18:38,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:38,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505818523] [2020-10-26 04:18:38,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:38,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:38,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:38,275 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:38,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:38,277 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 4 times [2020-10-26 04:18:38,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:38,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983805163] [2020-10-26 04:18:38,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:38,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:38,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:38,298 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:38,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:38,303 INFO L82 PathProgramCache]: Analyzing trace with hash 16049535, now seen corresponding path program 1 times [2020-10-26 04:18:38,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:38,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41482698] [2020-10-26 04:18:38,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:38,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:38,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:38,409 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:39,363 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 157 [2020-10-26 04:18:39,555 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-26 04:18:39,558 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:18:39,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:18:39,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:18:39,558 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:18:39,558 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:18:39,558 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:39,558 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:18:39,558 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:18:39,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration7_Lasso [2020-10-26 04:18:39,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:18:39,558 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:18:39,564 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 04:18:39,576 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 04:18:39,578 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 04:18:39,581 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 04:18:39,588 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 04:18:39,591 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 04:18:39,593 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 04:18:39,596 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 04:18:39,600 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 04:18:39,603 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 04:18:39,605 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 04:18:39,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:39,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:39,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:39,631 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 04:18:39,634 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 04:18:39,637 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 04:18:39,639 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 04:18:39,648 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 04:18:39,650 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 04:18:39,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:39,655 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 04:18:39,657 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 04:18:40,220 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-26 04:18:40,404 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2020-10-26 04:18:40,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:40,656 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-26 04:18:41,234 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:18:41,234 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,241 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 04:18:41,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:41,245 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 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 [2020-10-26 04:18:41,266 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 04:18:41,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:41,269 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) [2020-10-26 04:18:41,292 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:41,296 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 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 [2020-10-26 04:18:41,318 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 04:18:41,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,321 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:41,321 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:41,324 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 [2020-10-26 04:18:41,349 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 04:18:41,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:41,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,375 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 04:18:41,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,380 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,416 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 04:18:41,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,462 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 04:18:41,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,471 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,509 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 04:18:41,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,517 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,571 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 04:18:41,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,577 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 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,631 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 04:18:41,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:41,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:41,657 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:41,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,716 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,767 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 04:18:41,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,775 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,812 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 04:18:41,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,818 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,857 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 04:18:41,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,866 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,901 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 04:18:41,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,904 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:41,905 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,908 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,944 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 04:18:41,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,949 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:41,982 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:41,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:41,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:41,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:41,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:41,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:41,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:41,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:41,985 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 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:42,008 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 04:18:42,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:42,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:42,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:42,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:42,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:42,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:42,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:42,011 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:42,033 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 Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:42,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:42,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:42,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:42,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:42,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:42,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:42,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:42,036 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 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:42,058 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 04:18:42,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:42,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:42,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:42,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:42,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:42,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:42,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:42,062 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 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:42,087 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 04:18:42,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:42,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:42,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:42,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:42,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:42,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:42,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:42,090 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:42,112 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:42,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:42,114 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-10-26 04:18:42,114 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:18:42,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:42,122 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-10-26 04:18:42,122 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-26 04:18:42,144 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:42,178 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 04:18:42,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:42,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:42,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:42,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:42,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:42,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:42,185 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 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:42,209 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 04:18:42,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:42,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:42,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:42,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:42,224 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:42,224 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:42,246 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:18:42,273 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-26 04:18:42,273 INFO L444 ModelExtractionUtils]: 42 out of 55 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:42,277 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:42,280 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:18:42,280 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:18:42,280 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strlen_~s.base)_3, ULTIMATE.start_strstr_~haystack.offset) = 1*v_rep(select #length ULTIMATE.start_strlen_~s.base)_3 - 1*ULTIMATE.start_strstr_~haystack.offset Supporting invariants [] [2020-10-26 04:18:42,477 INFO L297 tatePredicateManager]: 33 out of 36 supporting invariants were superfluous and have been removed [2020-10-26 04:18:42,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:18:42,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:42,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:18:42,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:42,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:18:42,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:42,652 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 04:18:42,653 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-10-26 04:18:42,653 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand 6 states. [2020-10-26 04:18:42,722 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8. Second operand 6 states. Result 41 states and 51 transitions. Complement of second has 8 states. [2020-10-26 04:18:42,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:18:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-26 04:18:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-10-26 04:18:42,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 22 letters. Loop has 4 letters. [2020-10-26 04:18:42,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:42,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 26 letters. Loop has 4 letters. [2020-10-26 04:18:42,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:42,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 22 letters. Loop has 8 letters. [2020-10-26 04:18:42,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:42,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2020-10-26 04:18:42,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:42,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 45 transitions. [2020-10-26 04:18:42,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-26 04:18:42,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-26 04:18:42,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 45 transitions. [2020-10-26 04:18:42,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:42,730 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-10-26 04:18:42,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 45 transitions. [2020-10-26 04:18:42,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-26 04:18:42,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-26 04:18:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-10-26 04:18:42,739 INFO L714 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-10-26 04:18:42,739 INFO L594 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-10-26 04:18:42,739 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-26 04:18:42,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 44 transitions. [2020-10-26 04:18:42,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:42,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:42,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:42,745 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] [2020-10-26 04:18:42,745 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:42,745 INFO L794 eck$LassoCheckResult]: Stem: 1192#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1170#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 1171#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 1179#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1186#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1187#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1188#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1193#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1189#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1190#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1191#L509-5 strlen_#res := strlen_~i~0; 1174#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1175#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1176#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1177#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1172#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1173#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1178#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1182#L509-11 strlen_#res := strlen_~i~0; 1180#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1181#L529 assume !(0 == strstr_~nl~0 % 4294967296); 1183#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1184#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1167#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 1164#L517-3 [2020-10-26 04:18:42,746 INFO L796 eck$LassoCheckResult]: Loop: 1164#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1159#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 1160#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 1164#L517-3 [2020-10-26 04:18:42,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:42,750 INFO L82 PathProgramCache]: Analyzing trace with hash -2091601114, now seen corresponding path program 1 times [2020-10-26 04:18:42,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:42,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217443499] [2020-10-26 04:18:42,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:42,795 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:42,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:42,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:42,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:42,839 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 1 times [2020-10-26 04:18:42,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:42,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363499944] [2020-10-26 04:18:42,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:42,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:42,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:42,857 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:42,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:42,859 INFO L82 PathProgramCache]: Analyzing trace with hash 496824785, now seen corresponding path program 1 times [2020-10-26 04:18:42,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:42,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568760625] [2020-10-26 04:18:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:42,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:42,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:42,927 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:44,381 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 270 DAG size of output: 197 [2020-10-26 04:18:44,712 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-26 04:18:44,715 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:18:44,715 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:18:44,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:18:44,716 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:18:44,716 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:18:44,716 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:44,716 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:18:44,716 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:18:44,716 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration8_Lasso [2020-10-26 04:18:44,716 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:18:44,716 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:18:44,721 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 04:18:44,726 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 04:18:44,728 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 04:18:44,730 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 04:18:44,733 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 04:18:44,735 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 04:18:44,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:44,742 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 04:18:44,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:44,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:44,750 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 04:18:44,752 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 04:18:44,755 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 04:18:44,758 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 04:18:44,761 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 04:18:44,763 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 04:18:44,766 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 04:18:44,788 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 04:18:44,790 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 04:18:44,793 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 04:18:44,795 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 04:18:44,798 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 04:18:44,802 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 04:18:45,883 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 125 [2020-10-26 04:18:46,226 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2020-10-26 04:18:46,227 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 04:18:46,233 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 04:18:46,234 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 04:18:46,237 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 04:18:46,239 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 04:18:46,241 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 04:18:46,256 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 04:18:46,258 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 04:18:46,259 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 04:18:46,828 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-10-26 04:18:47,417 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-26 04:18:47,659 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:18:47,659 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,662 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 04:18:47,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:47,666 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:47,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:47,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,700 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:47,734 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 [2020-10-26 04:18:47,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,738 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:47,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:47,767 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 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,792 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 04:18:47,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:47,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:47,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:47,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:47,845 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:47,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:47,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,872 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 04:18:47,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:47,876 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 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,898 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 04:18:47,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:47,901 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:47,924 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:47,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:47,930 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 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,954 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 04:18:47,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:47,957 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 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:47,979 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 04:18:47,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:47,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:47,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:47,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:47,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:47,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:47,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:47,982 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 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,005 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 [2020-10-26 04:18:48,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:48,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:48,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:48,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,037 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 04:18:48,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,042 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 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,065 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 04:18:48,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:48,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:48,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:48,068 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 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,091 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 04:18:48,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:48,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:48,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:48,094 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 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,117 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 04:18:48,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:48,172 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 04:18:48,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:48,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:48,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,178 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 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,203 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 04:18:48,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:48,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:48,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:48,206 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 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,230 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 04:18:48,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:48,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:48,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:48,233 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 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,256 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 04:18:48,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:48,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:48,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:48,259 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:48,281 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:48,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:48,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:48,284 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 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:48,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,308 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,335 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 04:18:48,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,341 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 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,363 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 04:18:48,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,375 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,375 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,393 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 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,421 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 04:18:48,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,431 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:48,452 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,462 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 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,483 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 04:18:48,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,486 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,488 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 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,510 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 04:18:48,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,520 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:48,541 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,548 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 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,573 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 04:18:48,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:48,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:48,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:48,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:48,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:48,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:48,627 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:18:48,760 INFO L443 ModelExtractionUtils]: Simplification made 38 calls to the SMT solver. [2020-10-26 04:18:48,760 INFO L444 ModelExtractionUtils]: 31 out of 67 variables were initially zero. Simplification set additionally 33 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:48,764 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:48,766 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:18:48,766 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:18:48,767 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_4) = -1*ULTIMATE.start_memcmp_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_4 Supporting invariants [] [2020-10-26 04:18:49,091 INFO L297 tatePredicateManager]: 50 out of 53 supporting invariants were superfluous and have been removed [2020-10-26 04:18:49,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:18:49,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:49,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 44 conjunts are in the unsatisfiable core [2020-10-26 04:18:49,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:49,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-26 04:18:49,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:49,375 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 04:18:49,375 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-10-26 04:18:49,376 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 44 transitions. cyclomatic complexity: 11 Second operand 9 states. [2020-10-26 04:18:49,718 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 44 transitions. cyclomatic complexity: 11. Second operand 9 states. Result 94 states and 113 transitions. Complement of second has 14 states. [2020-10-26 04:18:49,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 7 stem states 2 non-accepting loop states 2 accepting loop states [2020-10-26 04:18:49,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-26 04:18:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 51 transitions. [2020-10-26 04:18:49,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 51 transitions. Stem has 24 letters. Loop has 3 letters. [2020-10-26 04:18:49,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:49,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 51 transitions. Stem has 27 letters. Loop has 3 letters. [2020-10-26 04:18:49,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:49,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 51 transitions. Stem has 24 letters. Loop has 6 letters. [2020-10-26 04:18:49,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:49,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 113 transitions. [2020-10-26 04:18:49,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:49,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 72 states and 87 transitions. [2020-10-26 04:18:49,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-10-26 04:18:49,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2020-10-26 04:18:49,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 87 transitions. [2020-10-26 04:18:49,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:49,733 INFO L691 BuchiCegarLoop]: Abstraction has 72 states and 87 transitions. [2020-10-26 04:18:49,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 87 transitions. [2020-10-26 04:18:49,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 43. [2020-10-26 04:18:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-26 04:18:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2020-10-26 04:18:49,741 INFO L714 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2020-10-26 04:18:49,741 INFO L594 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2020-10-26 04:18:49,741 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-26 04:18:49,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 52 transitions. [2020-10-26 04:18:49,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:49,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:49,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:49,744 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:18:49,744 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:49,745 INFO L794 eck$LassoCheckResult]: Stem: 1673#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1653#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 1654#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 1662#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1667#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1668#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1669#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1674#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1670#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1671#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1672#L509-5 strlen_#res := strlen_~i~0; 1655#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1656#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1657#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1658#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1648#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1649#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1659#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1663#L509-11 strlen_#res := strlen_~i~0; 1660#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1661#L529 assume !(0 == strstr_~nl~0 % 4294967296); 1664#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1665#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1681#L532 assume !strstr_#t~short17; 1652#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 1666#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 1676#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1650#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 1643#L517-3 [2020-10-26 04:18:49,745 INFO L796 eck$LassoCheckResult]: Loop: 1643#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1639#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 1640#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 1643#L517-3 [2020-10-26 04:18:49,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:49,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1756263678, now seen corresponding path program 1 times [2020-10-26 04:18:49,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:49,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842882914] [2020-10-26 04:18:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:18:49,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842882914] [2020-10-26 04:18:49,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578832419] [2020-10-26 04:18:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:18:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:50,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-26 04:18:50,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:18:50,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:18:50,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2020-10-26 04:18:50,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655851009] [2020-10-26 04:18:50,157 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:18:50,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:50,158 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 2 times [2020-10-26 04:18:50,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:50,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459532113] [2020-10-26 04:18:50,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:50,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:50,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:50,182 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:50,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:18:50,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-26 04:18:50,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-26 04:18:50,274 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. cyclomatic complexity: 14 Second operand 16 states. [2020-10-26 04:18:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:18:50,551 INFO L93 Difference]: Finished difference Result 133 states and 162 transitions. [2020-10-26 04:18:50,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 04:18:50,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 162 transitions. [2020-10-26 04:18:50,553 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-26 04:18:50,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 115 states and 141 transitions. [2020-10-26 04:18:50,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2020-10-26 04:18:50,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2020-10-26 04:18:50,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 141 transitions. [2020-10-26 04:18:50,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:50,560 INFO L691 BuchiCegarLoop]: Abstraction has 115 states and 141 transitions. [2020-10-26 04:18:50,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 141 transitions. [2020-10-26 04:18:50,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 54. [2020-10-26 04:18:50,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-26 04:18:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-10-26 04:18:50,571 INFO L714 BuchiCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-10-26 04:18:50,572 INFO L594 BuchiCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-10-26 04:18:50,572 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-26 04:18:50,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 64 transitions. [2020-10-26 04:18:50,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:50,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:50,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:50,575 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] [2020-10-26 04:18:50,576 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:50,576 INFO L794 eck$LassoCheckResult]: Stem: 1962#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1939#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 1940#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 1947#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1952#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1953#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1955#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1963#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1956#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1957#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1977#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1976#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1975#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1974#L509-5 strlen_#res := strlen_~i~0; 1973#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1972#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1943#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1944#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1961#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1970#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1960#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1948#L509-11 strlen_#res := strlen_~i~0; 1945#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1946#L529 assume !(0 == strstr_~nl~0 % 4294967296); 1949#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1950#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1967#L532 assume !strstr_#t~short17; 1938#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 1951#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 1965#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1936#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 1929#L517-3 [2020-10-26 04:18:50,577 INFO L796 eck$LassoCheckResult]: Loop: 1929#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1925#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 1926#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 1929#L517-3 [2020-10-26 04:18:50,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:50,579 INFO L82 PathProgramCache]: Analyzing trace with hash -421611971, now seen corresponding path program 2 times [2020-10-26 04:18:50,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:50,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139539593] [2020-10-26 04:18:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 04:18:50,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139539593] [2020-10-26 04:18:50,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890370953] [2020-10-26 04:18:50,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:18:50,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-26 04:18:50,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:18:50,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-26 04:18:50,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 04:18:50,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:18:50,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2020-10-26 04:18:50,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365605473] [2020-10-26 04:18:50,938 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:18:50,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:50,938 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 3 times [2020-10-26 04:18:50,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:50,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044653877] [2020-10-26 04:18:50,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:50,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:50,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:50,950 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:51,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:18:51,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-26 04:18:51,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-26 04:18:51,031 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. cyclomatic complexity: 15 Second operand 16 states. [2020-10-26 04:18:51,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:18:51,385 INFO L93 Difference]: Finished difference Result 189 states and 232 transitions. [2020-10-26 04:18:51,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 04:18:51,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 232 transitions. [2020-10-26 04:18:51,387 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2020-10-26 04:18:51,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 184 states and 227 transitions. [2020-10-26 04:18:51,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2020-10-26 04:18:51,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2020-10-26 04:18:51,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 227 transitions. [2020-10-26 04:18:51,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:51,391 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 227 transitions. [2020-10-26 04:18:51,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 227 transitions. [2020-10-26 04:18:51,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 57. [2020-10-26 04:18:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-26 04:18:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2020-10-26 04:18:51,407 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-10-26 04:18:51,407 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-10-26 04:18:51,407 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-26 04:18:51,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 68 transitions. [2020-10-26 04:18:51,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:51,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:51,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:51,409 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] [2020-10-26 04:18:51,410 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:51,411 INFO L794 eck$LassoCheckResult]: Stem: 2324#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2296#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2297#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2307#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2314#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2315#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2317#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2325#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2341#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2320#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2321#L509-5 strlen_#res := strlen_~i~0; 2303#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2304#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2316#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2334#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2298#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2299#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2306#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2323#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2333#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2322#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2310#L509-11 strlen_#res := strlen_~i~0; 2308#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2309#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2311#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2312#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2329#L532 assume !strstr_#t~short17; 2302#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 2313#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2327#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2300#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2291#L517-3 [2020-10-26 04:18:51,413 INFO L796 eck$LassoCheckResult]: Loop: 2291#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2287#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2288#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2291#L517-3 [2020-10-26 04:18:51,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:51,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1765677085, now seen corresponding path program 3 times [2020-10-26 04:18:51,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:51,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32709516] [2020-10-26 04:18:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:51,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:51,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:51,491 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:51,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:51,492 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 4 times [2020-10-26 04:18:51,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:51,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102658755] [2020-10-26 04:18:51,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:51,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:51,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:51,503 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:51,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:51,504 INFO L82 PathProgramCache]: Analyzing trace with hash 821646714, now seen corresponding path program 1 times [2020-10-26 04:18:51,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:51,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065939464] [2020-10-26 04:18:51,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:51,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:51,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:51,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:53,644 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 318 DAG size of output: 232 [2020-10-26 04:18:54,023 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-26 04:18:54,026 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:18:54,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:18:54,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:18:54,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:18:54,026 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:18:54,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:54,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:18:54,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:18:54,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration11_Lasso [2020-10-26 04:18:54,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:18:54,027 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:18:54,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:54,052 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 04:18:54,056 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 04:18:54,059 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 04:18:54,063 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 04:18:54,065 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 04:18:54,067 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 04:18:54,088 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 04:18:54,091 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 04:18:54,095 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 04:18:54,097 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 04:18:54,099 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 04:18:54,104 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 04:18:54,107 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 04:18:54,109 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 04:18:54,125 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 04:18:54,147 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 04:18:54,150 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 04:18:54,153 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 04:18:54,156 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 04:18:54,158 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 04:18:54,161 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 04:18:54,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:54,167 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 04:18:54,170 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 04:18:55,358 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 125 [2020-10-26 04:18:55,703 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2020-10-26 04:18:55,704 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 04:18:55,706 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 04:18:55,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:55,710 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 04:18:55,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:55,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:55,718 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 04:18:55,724 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 04:18:55,981 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-26 04:18:56,381 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-26 04:18:57,046 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-26 04:18:57,581 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-10-26 04:18:57,658 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:18:57,660 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,664 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 04:18:57,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,668 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 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,690 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 04:18:57,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,693 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 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,717 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 04:18:57,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,720 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 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,743 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 04:18:57,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,747 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 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,769 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 04:18:57,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,772 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 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,798 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 04:18:57,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,801 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 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,826 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 04:18:57,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:57,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:57,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:57,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:57,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,905 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 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:57,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,931 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 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,955 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 04:18:57,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,958 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 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:57,981 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 04:18:57,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:57,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:57,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:57,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:57,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:57,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:57,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:57,985 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 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,010 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 04:18:58,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:58,017 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 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,047 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 [2020-10-26 04:18:58,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:58,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:58,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:58,050 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 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,074 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 04:18:58,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:58,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:58,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:58,077 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 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,102 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 04:18:58,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:58,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:58,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:58,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,129 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 04:18:58,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:58,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:58,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:58,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 119 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,169 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 04:18:58,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:58,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:58,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,173 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 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,205 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 04:18:58,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:58,211 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 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,238 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 04:18:58,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:58,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:58,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:58,241 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 123 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 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,265 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 04:18:58,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:58,270 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 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:18:58,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:58,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:58,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,301 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 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,329 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 04:18:58,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,331 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,331 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:58,334 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 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,359 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 04:18:58,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:58,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:58,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:58,363 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 127 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,388 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 04:18:58,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:58,394 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,418 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,430 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,431 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:58,455 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,502 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 04:18:58,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,505 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,505 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,515 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,555 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,560 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,560 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:58,567 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,643 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 04:18:58,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:58,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,661 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 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,720 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 04:18:58,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:58,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:58,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:58,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:58,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:58,804 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:18:58,946 INFO L443 ModelExtractionUtils]: Simplification made 34 calls to the SMT solver. [2020-10-26 04:18:58,946 INFO L444 ModelExtractionUtils]: 18 out of 73 variables were initially zero. Simplification set additionally 52 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:58,966 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:58,968 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:18:58,969 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:18:58,969 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_5) = -1*ULTIMATE.start_memcmp_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_5 Supporting invariants [] [2020-10-26 04:18:59,378 INFO L297 tatePredicateManager]: 58 out of 60 supporting invariants were superfluous and have been removed [2020-10-26 04:18:59,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:18:59,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:59,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-26 04:18:59,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:59,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 04:18:59,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:59,542 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 04:18:59,544 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-10-26 04:18:59,544 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 68 transitions. cyclomatic complexity: 16 Second operand 6 states. [2020-10-26 04:18:59,620 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 68 transitions. cyclomatic complexity: 16. Second operand 6 states. Result 108 states and 132 transitions. Complement of second has 9 states. [2020-10-26 04:18:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:18:59,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-26 04:18:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 41 transitions. [2020-10-26 04:18:59,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 31 letters. Loop has 3 letters. [2020-10-26 04:18:59,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:59,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 34 letters. Loop has 3 letters. [2020-10-26 04:18:59,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:59,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 31 letters. Loop has 6 letters. [2020-10-26 04:18:59,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:59,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 132 transitions. [2020-10-26 04:18:59,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:59,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 81 states and 99 transitions. [2020-10-26 04:18:59,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-10-26 04:18:59,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-10-26 04:18:59,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 99 transitions. [2020-10-26 04:18:59,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:59,632 INFO L691 BuchiCegarLoop]: Abstraction has 81 states and 99 transitions. [2020-10-26 04:18:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 99 transitions. [2020-10-26 04:18:59,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 60. [2020-10-26 04:18:59,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-26 04:18:59,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2020-10-26 04:18:59,636 INFO L714 BuchiCegarLoop]: Abstraction has 60 states and 71 transitions. [2020-10-26 04:18:59,636 INFO L594 BuchiCegarLoop]: Abstraction has 60 states and 71 transitions. [2020-10-26 04:18:59,636 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-26 04:18:59,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 71 transitions. [2020-10-26 04:18:59,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:59,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:59,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:59,642 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 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, 1] [2020-10-26 04:18:59,643 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:59,645 INFO L794 eck$LassoCheckResult]: Stem: 2867#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2841#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2842#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2850#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2858#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2859#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2860#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2873#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2861#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2862#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2868#L509-5 strlen_#res := strlen_~i~0; 2845#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2846#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2847#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2848#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2843#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2844#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2849#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2875#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2874#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2866#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2855#L509-11 strlen_#res := strlen_~i~0; 2851#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2852#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2856#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2857#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2839#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2834#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2835#L517-1 assume !(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6; 2836#L517-4 memcmp_#res := 0; 2837#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2853#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 2854#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2871#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2838#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2833#L517-3 [2020-10-26 04:18:59,647 INFO L796 eck$LassoCheckResult]: Loop: 2833#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2829#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2830#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2833#L517-3 [2020-10-26 04:18:59,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:59,648 INFO L82 PathProgramCache]: Analyzing trace with hash 191871499, now seen corresponding path program 1 times [2020-10-26 04:18:59,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:59,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537926380] [2020-10-26 04:18:59,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 04:18:59,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537926380] [2020-10-26 04:18:59,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:18:59,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 04:18:59,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645278754] [2020-10-26 04:18:59,702 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:18:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:59,702 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 5 times [2020-10-26 04:18:59,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:59,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646347463] [2020-10-26 04:18:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:59,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:59,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:59,728 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:59,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:18:59,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:18:59,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:18:59,858 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. cyclomatic complexity: 17 Second operand 4 states. [2020-10-26 04:18:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:18:59,880 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2020-10-26 04:18:59,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:18:59,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 72 transitions. [2020-10-26 04:18:59,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:59,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 59 states and 68 transitions. [2020-10-26 04:18:59,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-10-26 04:18:59,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2020-10-26 04:18:59,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 68 transitions. [2020-10-26 04:18:59,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:18:59,885 INFO L691 BuchiCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-10-26 04:18:59,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 68 transitions. [2020-10-26 04:18:59,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-26 04:18:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-26 04:18:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2020-10-26 04:18:59,894 INFO L714 BuchiCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-10-26 04:18:59,894 INFO L594 BuchiCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-10-26 04:18:59,894 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-10-26 04:18:59,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 68 transitions. [2020-10-26 04:18:59,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:18:59,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:59,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:59,897 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 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, 1] [2020-10-26 04:18:59,899 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:18:59,900 INFO L794 eck$LassoCheckResult]: Stem: 2998#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2971#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2972#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2980#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2987#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2988#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2989#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3018#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3014#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3013#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3012#L509-5 strlen_#res := strlen_~i~0; 2975#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2976#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2977#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2978#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2973#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2974#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2979#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3008#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3007#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2995#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2984#L509-11 strlen_#res := strlen_~i~0; 2981#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2982#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2985#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2986#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2968#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2970#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2962#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2963#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 2996#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2997#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3005#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3004#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2967#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2964#L517-3 [2020-10-26 04:18:59,900 INFO L796 eck$LassoCheckResult]: Loop: 2964#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2960#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2961#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2964#L517-3 [2020-10-26 04:18:59,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:59,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1795103955, now seen corresponding path program 1 times [2020-10-26 04:18:59,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:59,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845106947] [2020-10-26 04:18:59,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 04:18:59,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845106947] [2020-10-26 04:18:59,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:18:59,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 04:18:59,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483905315] [2020-10-26 04:18:59,992 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:18:59,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:59,993 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 6 times [2020-10-26 04:18:59,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:59,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969131] [2020-10-26 04:18:59,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:59,998 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:00,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:00,004 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:00,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:19:00,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:19:00,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:19:00,096 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-26 04:19:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:19:00,244 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2020-10-26 04:19:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 04:19:00,245 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 79 transitions. [2020-10-26 04:19:00,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:19:00,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 68 states and 77 transitions. [2020-10-26 04:19:00,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2020-10-26 04:19:00,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2020-10-26 04:19:00,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 77 transitions. [2020-10-26 04:19:00,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:19:00,248 INFO L691 BuchiCegarLoop]: Abstraction has 68 states and 77 transitions. [2020-10-26 04:19:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 77 transitions. [2020-10-26 04:19:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2020-10-26 04:19:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-26 04:19:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2020-10-26 04:19:00,252 INFO L714 BuchiCegarLoop]: Abstraction has 63 states and 72 transitions. [2020-10-26 04:19:00,252 INFO L594 BuchiCegarLoop]: Abstraction has 63 states and 72 transitions. [2020-10-26 04:19:00,252 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-10-26 04:19:00,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 72 transitions. [2020-10-26 04:19:00,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:19:00,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:00,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:00,254 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 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] [2020-10-26 04:19:00,254 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:19:00,254 INFO L794 eck$LassoCheckResult]: Stem: 3142#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3116#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3117#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3125#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3132#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3133#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3134#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3143#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3135#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3136#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3138#L509-5 strlen_#res := strlen_~i~0; 3120#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3121#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3122#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3123#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3118#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3119#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3124#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3153#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3150#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3139#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3129#L509-11 strlen_#res := strlen_~i~0; 3126#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3127#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3130#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3131#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3114#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3112#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3109#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3110#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3167#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3168#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3159#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3140#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3141#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3148#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3147#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3113#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3111#L517-3 [2020-10-26 04:19:00,254 INFO L796 eck$LassoCheckResult]: Loop: 3111#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3107#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3108#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3111#L517-3 [2020-10-26 04:19:00,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:00,255 INFO L82 PathProgramCache]: Analyzing trace with hash -2138077336, now seen corresponding path program 1 times [2020-10-26 04:19:00,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:00,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488973068] [2020-10-26 04:19:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 04:19:00,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488973068] [2020-10-26 04:19:00,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274016476] [2020-10-26 04:19:00,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:19:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:00,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-26 04:19:00,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:00,600 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 04:19:00,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:19:00,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-10-26 04:19:00,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717535278] [2020-10-26 04:19:00,601 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:19:00,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:00,602 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 7 times [2020-10-26 04:19:00,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:00,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608610696] [2020-10-26 04:19:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:00,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:00,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:00,613 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:00,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:19:00,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 04:19:00,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-26 04:19:00,714 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. cyclomatic complexity: 15 Second operand 10 states. [2020-10-26 04:19:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:19:00,951 INFO L93 Difference]: Finished difference Result 127 states and 143 transitions. [2020-10-26 04:19:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 04:19:00,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 127 states and 143 transitions. [2020-10-26 04:19:00,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-26 04:19:00,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 127 states to 99 states and 113 transitions. [2020-10-26 04:19:00,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-10-26 04:19:00,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-10-26 04:19:00,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 113 transitions. [2020-10-26 04:19:00,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:19:00,956 INFO L691 BuchiCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-10-26 04:19:00,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 113 transitions. [2020-10-26 04:19:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 63. [2020-10-26 04:19:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-26 04:19:00,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-10-26 04:19:00,959 INFO L714 BuchiCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-10-26 04:19:00,959 INFO L594 BuchiCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-10-26 04:19:00,960 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-10-26 04:19:00,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 71 transitions. [2020-10-26 04:19:00,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:19:00,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:00,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:00,961 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:19:00,961 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:19:00,962 INFO L794 eck$LassoCheckResult]: Stem: 3472#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3446#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3447#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3455#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3460#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3461#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3464#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3475#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3465#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3466#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3488#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3481#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3482#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3467#L509-5 strlen_#res := strlen_~i~0; 3468#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3462#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3463#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3491#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3490#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3452#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3451#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3440#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3441#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3469#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3456#L509-11 strlen_#res := strlen_~i~0; 3453#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3454#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3457#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3458#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3443#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3445#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3492#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3477#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3478#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3435#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3436#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3470#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3471#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3487#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3484#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3442#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3437#L517-3 [2020-10-26 04:19:00,962 INFO L796 eck$LassoCheckResult]: Loop: 3437#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3433#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3434#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3437#L517-3 [2020-10-26 04:19:00,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:00,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1050158307, now seen corresponding path program 2 times [2020-10-26 04:19:00,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:00,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442836375] [2020-10-26 04:19:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:01,218 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 04:19:01,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442836375] [2020-10-26 04:19:01,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755747557] [2020-10-26 04:19:01,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:19:01,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-26 04:19:01,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:19:01,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjunts are in the unsatisfiable core [2020-10-26 04:19:01,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 04:19:01,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:19:01,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2020-10-26 04:19:01,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626416544] [2020-10-26 04:19:01,472 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:19:01,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:01,472 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 8 times [2020-10-26 04:19:01,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:01,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998486586] [2020-10-26 04:19:01,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,478 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,485 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:01,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:19:01,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-26 04:19:01,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2020-10-26 04:19:01,603 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. cyclomatic complexity: 14 Second operand 19 states. [2020-10-26 04:19:02,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:19:02,041 INFO L93 Difference]: Finished difference Result 195 states and 222 transitions. [2020-10-26 04:19:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 04:19:02,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 222 transitions. [2020-10-26 04:19:02,044 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-10-26 04:19:02,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 174 states and 200 transitions. [2020-10-26 04:19:02,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2020-10-26 04:19:02,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2020-10-26 04:19:02,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 200 transitions. [2020-10-26 04:19:02,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:19:02,046 INFO L691 BuchiCegarLoop]: Abstraction has 174 states and 200 transitions. [2020-10-26 04:19:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 200 transitions. [2020-10-26 04:19:02,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 66. [2020-10-26 04:19:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-26 04:19:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2020-10-26 04:19:02,049 INFO L714 BuchiCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-26 04:19:02,050 INFO L594 BuchiCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-26 04:19:02,050 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-10-26 04:19:02,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 74 transitions. [2020-10-26 04:19:02,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:19:02,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:02,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:02,051 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 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] [2020-10-26 04:19:02,052 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:19:02,052 INFO L794 eck$LassoCheckResult]: Stem: 3882#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3850#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3851#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3863#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3870#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3871#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3874#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3892#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3875#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3876#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3885#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3893#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3895#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3896#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3897#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3883#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3884#L509-5 strlen_#res := strlen_~i~0; 3858#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3859#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3860#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3861#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3880#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3898#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3879#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3866#L509-11 strlen_#res := strlen_~i~0; 3864#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3865#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3867#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3868#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3890#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3904#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3905#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3888#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3889#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3845#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3846#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3881#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3856#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3869#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3902#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3854#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3847#L517-3 [2020-10-26 04:19:02,052 INFO L796 eck$LassoCheckResult]: Loop: 3847#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3843#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3844#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3847#L517-3 [2020-10-26 04:19:02,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:02,053 INFO L82 PathProgramCache]: Analyzing trace with hash 584016579, now seen corresponding path program 3 times [2020-10-26 04:19:02,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:02,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473467404] [2020-10-26 04:19:02,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 04:19:02,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473467404] [2020-10-26 04:19:02,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189763072] [2020-10-26 04:19:02,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:19:02,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-26 04:19:02,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:19:02,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-26 04:19:02,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-26 04:19:05,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:19:05,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2020-10-26 04:19:05,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088299244] [2020-10-26 04:19:05,190 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:19:05,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:05,191 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 9 times [2020-10-26 04:19:05,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:05,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841366298] [2020-10-26 04:19:05,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:05,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:05,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:05,205 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:05,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:19:05,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-26 04:19:05,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-10-26 04:19:05,302 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. cyclomatic complexity: 14 Second operand 17 states. [2020-10-26 04:19:06,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:19:06,641 INFO L93 Difference]: Finished difference Result 284 states and 324 transitions. [2020-10-26 04:19:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-26 04:19:06,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 284 states and 324 transitions. [2020-10-26 04:19:06,645 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-10-26 04:19:06,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 284 states to 258 states and 297 transitions. [2020-10-26 04:19:06,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2020-10-26 04:19:06,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 87 [2020-10-26 04:19:06,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 258 states and 297 transitions. [2020-10-26 04:19:06,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:19:06,648 INFO L691 BuchiCegarLoop]: Abstraction has 258 states and 297 transitions. [2020-10-26 04:19:06,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states and 297 transitions. [2020-10-26 04:19:06,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 66. [2020-10-26 04:19:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-26 04:19:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2020-10-26 04:19:06,651 INFO L714 BuchiCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-26 04:19:06,652 INFO L594 BuchiCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-26 04:19:06,652 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-10-26 04:19:06,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 74 transitions. [2020-10-26 04:19:06,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:19:06,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:06,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:06,653 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:19:06,653 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:19:06,654 INFO L794 eck$LassoCheckResult]: Stem: 4392#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4368#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 4369#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 4378#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4384#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4385#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4386#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4400#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4387#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4388#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4413#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4412#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4394#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4395#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4401#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4393#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4389#L509-5 strlen_#res := strlen_~i~0; 4370#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4371#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4372#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4373#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4403#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4374#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4375#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4362#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4363#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4390#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4379#L509-11 strlen_#res := strlen_~i~0; 4376#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 4377#L529 assume !(0 == strstr_~nl~0 % 4294967296); 4380#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 4381#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4398#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4361#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4358#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4359#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4397#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4419#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4402#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 4391#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 4366#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 4415#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 4414#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4364#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4360#L517-3 [2020-10-26 04:19:06,654 INFO L796 eck$LassoCheckResult]: Loop: 4360#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4356#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4357#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4360#L517-3 [2020-10-26 04:19:06,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:06,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1423552120, now seen corresponding path program 4 times [2020-10-26 04:19:06,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:06,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112305434] [2020-10-26 04:19:06,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 04:19:06,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112305434] [2020-10-26 04:19:06,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667128460] [2020-10-26 04:19:06,909 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:19:06,999 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-26 04:19:06,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:19:07,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 25 conjunts are in the unsatisfiable core [2020-10-26 04:19:07,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 04:19:07,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:19:07,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2020-10-26 04:19:07,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987851400] [2020-10-26 04:19:07,141 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:19:07,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:07,142 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 10 times [2020-10-26 04:19:07,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:07,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773397505] [2020-10-26 04:19:07,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:07,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:07,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:07,153 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:07,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:19:07,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-26 04:19:07,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2020-10-26 04:19:07,249 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. cyclomatic complexity: 14 Second operand 19 states. [2020-10-26 04:19:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:19:07,690 INFO L93 Difference]: Finished difference Result 231 states and 264 transitions. [2020-10-26 04:19:07,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 04:19:07,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 264 transitions. [2020-10-26 04:19:07,696 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2020-10-26 04:19:07,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 226 states and 259 transitions. [2020-10-26 04:19:07,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2020-10-26 04:19:07,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2020-10-26 04:19:07,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 226 states and 259 transitions. [2020-10-26 04:19:07,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:19:07,699 INFO L691 BuchiCegarLoop]: Abstraction has 226 states and 259 transitions. [2020-10-26 04:19:07,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states and 259 transitions. [2020-10-26 04:19:07,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 69. [2020-10-26 04:19:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-26 04:19:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2020-10-26 04:19:07,702 INFO L714 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-10-26 04:19:07,702 INFO L594 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-10-26 04:19:07,702 INFO L427 BuchiCegarLoop]: ======== Iteration 18============ [2020-10-26 04:19:07,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 78 transitions. [2020-10-26 04:19:07,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:19:07,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:07,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:07,704 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:19:07,704 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:19:07,704 INFO L794 eck$LassoCheckResult]: Stem: 4853#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4827#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 4828#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 4837#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4842#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4843#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4845#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4859#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4846#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4847#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4855#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4875#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4854#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4848#L509-5 strlen_#res := strlen_~i~0; 4829#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4830#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4844#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4868#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4867#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4866#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4832#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4850#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4833#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4834#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4821#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4822#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4849#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4838#L509-11 strlen_#res := strlen_~i~0; 4835#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 4836#L529 assume !(0 == strstr_~nl~0 % 4294967296); 4839#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 4840#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4824#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4826#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4879#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4857#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4858#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4816#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4817#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 4851#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 4852#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem15;havoc strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~ret16;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 4864#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 4863#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4823#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4818#L517-3 [2020-10-26 04:19:07,705 INFO L796 eck$LassoCheckResult]: Loop: 4818#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4814#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4815#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4818#L517-3 [2020-10-26 04:19:07,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:07,705 INFO L82 PathProgramCache]: Analyzing trace with hash -224601240, now seen corresponding path program 5 times [2020-10-26 04:19:07,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:07,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594039775] [2020-10-26 04:19:07,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:07,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:07,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:07,783 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 11 times [2020-10-26 04:19:07,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:07,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563150215] [2020-10-26 04:19:07,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:07,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:07,792 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:07,794 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:07,795 INFO L82 PathProgramCache]: Analyzing trace with hash 463587919, now seen corresponding path program 6 times [2020-10-26 04:19:07,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:07,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318257998] [2020-10-26 04:19:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:07,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:07,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:07,891 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:12,137 WARN L193 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 476 DAG size of output: 339 [2020-10-26 04:19:12,647 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-26 04:19:12,650 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:19:12,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:19:12,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:19:12,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:19:12,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:19:12,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:12,651 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:19:12,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:19:12,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration18_Lasso [2020-10-26 04:19:12,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:19:12,651 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:19:12,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:12,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:12,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:12,673 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 04:19:12,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:12,678 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 04:19:12,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:12,706 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 04:19:12,710 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 04:19:12,718 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 04:19:12,721 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 04:19:12,723 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 04:19:12,726 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 04:19:12,729 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 04:19:12,731 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 04:19:12,734 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 04:19:12,737 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 04:19:12,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:12,742 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 04:19:12,746 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 04:19:12,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:12,759 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 04:19:12,761 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 04:19:12,772 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 04:19:12,774 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 04:19:12,776 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 04:19:14,614 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 145 [2020-10-26 04:19:15,121 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94 [2020-10-26 04:19:15,122 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 04:19:15,125 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 04:19:15,127 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 04:19:15,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:15,132 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 04:19:15,441 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-26 04:19:15,910 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-26 04:19:16,034 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-26 04:19:16,221 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-26 04:19:16,569 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-26 04:19:16,824 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 04:19:16,932 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-26 04:19:17,915 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-26 04:19:17,977 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:19:17,977 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:17,989 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 04:19:17,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:17,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:17,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:17,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:17,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:17,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:17,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:17,994 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 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:18,031 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 04:19:18,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,036 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 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:18,075 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 04:19:18,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,082 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 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:18,119 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 04:19:18,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,124 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 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:18,160 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 04:19:18,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,165 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 143 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 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,196 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 04:19:18,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,199 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 144 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 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,223 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 04:19:18,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:18,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:18,244 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 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:18,266 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 04:19:18,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 145 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 146 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 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,293 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 04:19:18,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,296 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 147 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 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,321 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 04:19:18,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,325 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 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:18,348 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 04:19:18,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 148 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 149 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 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,376 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 04:19:18,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,380 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 150 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 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,404 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 04:19:18,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:18,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:18,410 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 151 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 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,433 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 04:19:18,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,436 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 152 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 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,460 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 04:19:18,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,464 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 153 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 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,488 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 04:19:18,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,491 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 154 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 154 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,513 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 04:19:18,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,516 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 155 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 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,540 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 04:19:18,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,543 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 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:18,586 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 04:19:18,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:18,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,594 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 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:18,634 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 04:19:18,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,641 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 158 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 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,675 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 04:19:18,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:18,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:18,680 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 159 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 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,703 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 04:19:18,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,706 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 160 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 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,729 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 04:19:18,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,732 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 161 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 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,756 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 04:19:18,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 162 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 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,783 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 [2020-10-26 04:19:18,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:18,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:18,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:18,787 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 163 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 163 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,812 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 04:19:18,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:18,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:18,818 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 164 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 164 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,841 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 04:19:18,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,843 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-26 04:19:18,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,844 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-26 04:19:18,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:18,848 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 165 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 165 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,874 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 04:19:18,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,876 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:18,876 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:18,879 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 166 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 166 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,905 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 04:19:18,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:18,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:18,910 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 167 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 167 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:18,935 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 04:19:18,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:18,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:18,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:18,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:18,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:18,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:18,973 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 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:19,012 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 04:19:19,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:19,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:19,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:19,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:19,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:19,034 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:19,097 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:19:19,164 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-26 04:19:19,164 INFO L444 ModelExtractionUtils]: 28 out of 82 variables were initially zero. Simplification set additionally 51 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 169 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:19,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 169 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:19,179 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:19:19,179 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:19:19,179 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~d~0.offset, v_rep(select #length ULTIMATE.start_strlen_~s.base)_4) = -1*ULTIMATE.start_memcmp_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_strlen_~s.base)_4 Supporting invariants [] [2020-10-26 04:19:20,056 INFO L297 tatePredicateManager]: 83 out of 86 supporting invariants were superfluous and have been removed [2020-10-26 04:19:20,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:19:20,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:20,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-26 04:19:20,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:20,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:19:20,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:20,302 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 04:19:20,303 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-10-26 04:19:20,303 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-26 04:19:20,406 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15. Second operand 7 states. Result 87 states and 100 transitions. Complement of second has 10 states. [2020-10-26 04:19:20,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:19:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-26 04:19:20,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2020-10-26 04:19:20,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2020-10-26 04:19:20,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:20,408 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-26 04:19:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:20,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-26 04:19:20,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:20,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:19:20,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:20,605 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 04:19:20,605 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2020-10-26 04:19:20,606 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-26 04:19:20,686 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15. Second operand 7 states. Result 87 states and 100 transitions. Complement of second has 10 states. [2020-10-26 04:19:20,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:19:20,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-26 04:19:20,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2020-10-26 04:19:20,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2020-10-26 04:19:20,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:20,688 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-26 04:19:20,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:20,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-26 04:19:20,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:20,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:19:20,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:20,901 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 04:19:20,902 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-10-26 04:19:20,903 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-26 04:19:20,989 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15. Second operand 7 states. Result 87 states and 100 transitions. Complement of second has 9 states. [2020-10-26 04:19:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:19:20,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-26 04:19:20,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2020-10-26 04:19:20,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 44 letters. Loop has 3 letters. [2020-10-26 04:19:20,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:20,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 47 letters. Loop has 3 letters. [2020-10-26 04:19:20,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:20,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 44 letters. Loop has 6 letters. [2020-10-26 04:19:20,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:20,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 100 transitions. [2020-10-26 04:19:20,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:19:20,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 0 states and 0 transitions. [2020-10-26 04:19:20,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:19:20,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:19:20,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:19:20,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:19:20,994 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:19:20,994 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:19:20,994 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:19:20,994 INFO L427 BuchiCegarLoop]: ======== Iteration 19============ [2020-10-26 04:19:20,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:19:20,994 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:19:20,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:19:21,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:19:21 BoogieIcfgContainer [2020-10-26 04:19:21,002 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:19:21,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:19:21,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:19:21,003 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:19:21,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:18:30" (3/4) ... [2020-10-26 04:19:21,008 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:19:21,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:19:21,009 INFO L168 Benchmark]: Toolchain (without parser) took 51995.99 ms. Allocated memory was 46.1 MB in the beginning and 394.3 MB in the end (delta: 348.1 MB). Free memory was 21.7 MB in the beginning and 245.2 MB in the end (delta: -223.5 MB). Peak memory consumption was 125.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:21,010 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 29.0 MB in the beginning and 29.0 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:19:21,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.11 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.1 MB in the beginning and 31.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:21,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.57 ms. Allocated memory is still 58.7 MB. Free memory was 31.5 MB in the beginning and 29.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:21,011 INFO L168 Benchmark]: Boogie Preprocessor took 79.33 ms. Allocated memory is still 58.7 MB. Free memory was 29.2 MB in the beginning and 41.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:21,011 INFO L168 Benchmark]: RCFGBuilder took 558.89 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 37.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:21,012 INFO L168 Benchmark]: BuchiAutomizer took 50636.03 ms. Allocated memory was 58.7 MB in the beginning and 394.3 MB in the end (delta: 335.5 MB). Free memory was 37.3 MB in the beginning and 245.2 MB in the end (delta: -207.9 MB). Peak memory consumption was 125.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:21,012 INFO L168 Benchmark]: Witness Printer took 5.37 ms. Allocated memory is still 394.3 MB. Free memory is still 245.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:19:21,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 29.0 MB in the beginning and 29.0 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 594.11 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.1 MB in the beginning and 31.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.57 ms. Allocated memory is still 58.7 MB. Free memory was 31.5 MB in the beginning and 29.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.33 ms. Allocated memory is still 58.7 MB. Free memory was 29.2 MB in the beginning and 41.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 558.89 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 37.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 50636.03 ms. Allocated memory was 58.7 MB in the beginning and 394.3 MB in the end (delta: 335.5 MB). Free memory was 37.3 MB in the beginning and 245.2 MB in the end (delta: -207.9 MB). Peak memory consumption was 125.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.37 ms. Allocated memory is still 394.3 MB. Free memory is still 245.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 18 terminating modules (12 trivial, 5 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * s and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * s and consists of 6 locations. One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * haystack and consists of 6 locations. One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[__builtin_alloca (out_len)] and consists of 11 locations. One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. One nondeterministic module has affine ranking function -1 * d + unknown-#length-unknown[s] and consists of 7 locations. 12 modules have a trivial ranking function, the largest among these consists of 19 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 50.5s and 19 iterations. TraceHistogramMax:4. Analysis of lassos took 44.1s. Construction of modules took 2.1s. Büchi inclusion checks took 3.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 17. Automata minimization 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 767 StatesRemovedByMinimization, 13 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 17. Nontrivial modules had stage [5, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 709 SDtfs, 1387 SDslu, 3388 SDs, 0 SdLazy, 1968 SolverSat, 180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU12 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital309 mio100 ax100 hnf98 lsp88 ukn88 mio100 lsp44 div104 bol100 ite100 ukn100 eq190 hnf87 smp97 dnf150 smp86 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 4 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 28 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...