./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 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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 0.1.25-9a8b2e8 [2020-10-20 06:37:10,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:37:10,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:37:10,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:37:10,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:37:10,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:37:10,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:37:10,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:37:10,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:37:10,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:37:10,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:37:10,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:37:10,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:37:10,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:37:10,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:37:10,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:37:10,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:37:10,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:37:10,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:37:10,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:37:10,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:37:10,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:37:10,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:37:10,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:37:10,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:37:10,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:37:10,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:37:10,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:37:10,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:37:10,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:37:10,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:37:10,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:37:10,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:37:10,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:37:10,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:37:10,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:37:10,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:37:10,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:37:10,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:37:10,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:37:10,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:37:10,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:37:10,836 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:37:10,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:37:10,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:37:10,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:37:10,839 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:37:10,839 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:37:10,839 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:37:10,839 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:37:10,840 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:37:10,840 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:37:10,840 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:37:10,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:37:10,841 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:37:10,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:37:10,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:37:10,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:37:10,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:37:10,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:37:10,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:37:10,842 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:37:10,843 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:37:10,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:37:10,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:37:10,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:37:10,844 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:37:10,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:37:10,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:37:10,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:37:10,845 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:37:10,846 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:37:10,846 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 938c367f37ddd298c829be75f27a69a6e9a1154b [2020-10-20 06:37:11,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:37:11,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:37:11,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:37:11,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:37:11,075 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:37:11,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strstr.i [2020-10-20 06:37:11,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/081876808/0cfe97184d824ca788d2898e8cfc346a/FLAGb7a8f090c [2020-10-20 06:37:11,643 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:37:11,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strstr.i [2020-10-20 06:37:11,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/081876808/0cfe97184d824ca788d2898e8cfc346a/FLAGb7a8f090c [2020-10-20 06:37:12,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/081876808/0cfe97184d824ca788d2898e8cfc346a [2020-10-20 06:37:12,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:37:12,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:37:12,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:37:12,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:37:12,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:37:12,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86dd75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12, skipping insertion in model container [2020-10-20 06:37:12,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:37:12,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:37:12,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:37:12,561 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:37:12,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:37:12,685 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:37:12,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12 WrapperNode [2020-10-20 06:37:12,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:37:12,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:37:12,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:37:12,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:37:12,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:37:12,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:37:12,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:37:12,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:37:12,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:37:12,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:37:12,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:37:12,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:37:12,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:37:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:37:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:37:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:37:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:37:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:37:13,289 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:37:13,290 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-20 06:37:13,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:13 BoogieIcfgContainer [2020-10-20 06:37:13,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:37:13,293 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:37:13,293 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:37:13,296 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:37:13,297 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:13,298 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:37:12" (1/3) ... [2020-10-20 06:37:13,299 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43c7dbec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:37:13, skipping insertion in model container [2020-10-20 06:37:13,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:13,299 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (2/3) ... [2020-10-20 06:37:13,299 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43c7dbec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:37:13, skipping insertion in model container [2020-10-20 06:37:13,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:13,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:13" (3/3) ... [2020-10-20 06:37:13,302 INFO L373 chiAutomizerObserver]: Analyzing ICFG strstr.i [2020-10-20 06:37:13,349 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:37:13,349 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:37:13,349 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:37:13,349 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:37:13,350 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:37:13,350 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:37:13,350 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:37:13,350 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:37:13,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states. [2020-10-20 06:37:13,385 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-10-20 06:37:13,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:13,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:13,391 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:37:13,392 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:13,392 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:37:13,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states. [2020-10-20 06:37:13,395 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-10-20 06:37:13,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:13,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:13,396 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:37:13,396 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:13,403 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 [2020-10-20 06:37:13,404 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 [2020-10-20 06:37:13,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:13,409 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2020-10-20 06:37:13,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:13,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173538796] [2020-10-20 06:37:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,603 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:13,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:13,605 INFO L82 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 1 times [2020-10-20 06:37:13,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:13,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683744462] [2020-10-20 06:37:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,614 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,623 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:13,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:13,625 INFO L82 PathProgramCache]: Analyzing trace with hash 179566670, now seen corresponding path program 1 times [2020-10-20 06:37:13,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:13,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238350034] [2020-10-20 06:37:13,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,751 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,767 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:14,337 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 96 [2020-10-20 06:37:14,498 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-20 06:37:14,514 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:14,516 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:14,516 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:14,516 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:14,516 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:14,516 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:14,516 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:14,517 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:14,517 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration1_Lasso [2020-10-20 06:37:14,517 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:14,518 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:14,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,907 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-10-20 06:37:14,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,524 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:15,530 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:15,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,558 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:15,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:15,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:15,687 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:15,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,890 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:15,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,921 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 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 [2020-10-20 06:37:15,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:15,951 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:15,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,987 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 [2020-10-20 06:37:15,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:15,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:16,003 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:16,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:16,052 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:16,208 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-10-20 06:37:16,208 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 [2020-10-20 06:37:16,222 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:37:16,233 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:16,234 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:16,234 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 [] [2020-10-20 06:37:16,299 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-10-20 06:37:16,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:16,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:16,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:37:16,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:16,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:16,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:16,426 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 06:37:16,441 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states. Second operand 4 states. [2020-10-20 06:37:16,561 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. [2020-10-20 06:37:16,562 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 [2020-10-20 06:37:16,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:37:16,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2020-10-20 06:37:16,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 3 letters. [2020-10-20 06:37:16,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:16,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 8 letters. Loop has 3 letters. [2020-10-20 06:37:16,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:16,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 6 letters. [2020-10-20 06:37:16,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:16,572 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 130 transitions. [2020-10-20 06:37:16,578 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2020-10-20 06:37:16,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 47 states and 62 transitions. [2020-10-20 06:37:16,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2020-10-20 06:37:16,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2020-10-20 06:37:16,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2020-10-20 06:37:16,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:16,590 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-20 06:37:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2020-10-20 06:37:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-20 06:37:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 06:37:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-10-20 06:37:16,635 INFO L714 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-20 06:37:16,635 INFO L594 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-20 06:37:16,635 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:37:16,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 62 transitions. [2020-10-20 06:37:16,642 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2020-10-20 06:37:16,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:16,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:16,643 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,644 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:16,644 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 [2020-10-20 06:37:16,644 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 [2020-10-20 06:37:16,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1806906284, now seen corresponding path program 1 times [2020-10-20 06:37:16,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228007237] [2020-10-20 06:37:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:16,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228007237] [2020-10-20 06:37:16,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:16,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:37:16,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709274138] [2020-10-20 06:37:16,763 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:16,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,763 INFO L82 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 1 times [2020-10-20 06:37:16,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903075736] [2020-10-20 06:37:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,770 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,776 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:16,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:16,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:37:16,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:37:16,815 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. cyclomatic complexity: 20 Second operand 3 states. [2020-10-20 06:37:16,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:16,839 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2020-10-20 06:37:16,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:37:16,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2020-10-20 06:37:16,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-20 06:37:16,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2020-10-20 06:37:16,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-10-20 06:37:16,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-10-20 06:37:16,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2020-10-20 06:37:16,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:16,844 INFO L691 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-10-20 06:37:16,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2020-10-20 06:37:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-20 06:37:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-20 06:37:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2020-10-20 06:37:16,848 INFO L714 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-10-20 06:37:16,848 INFO L594 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-10-20 06:37:16,848 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:37:16,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2020-10-20 06:37:16,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-20 06:37:16,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:16,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:16,850 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,851 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:16,851 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 [2020-10-20 06:37:16,851 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 [2020-10-20 06:37:16,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,852 INFO L82 PathProgramCache]: Analyzing trace with hash 764823385, now seen corresponding path program 1 times [2020-10-20 06:37:16,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451189090] [2020-10-20 06:37:16,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,894 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,895 INFO L82 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 2 times [2020-10-20 06:37:16,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610754593] [2020-10-20 06:37:16,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,907 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:16,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,911 INFO L82 PathProgramCache]: Analyzing trace with hash 52000116, now seen corresponding path program 1 times [2020-10-20 06:37:16,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067467586] [2020-10-20 06:37:16,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,973 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:17,540 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2020-10-20 06:37:17,689 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-20 06:37:17,692 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:17,692 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:17,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:17,692 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:17,693 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:17,693 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:17,693 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:17,693 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:17,693 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration3_Lasso [2020-10-20 06:37:17,693 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:17,693 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:17,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,122 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-20 06:37:18,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,727 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:18,727 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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:18,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:18,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:18,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:18,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:18,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:18,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,775 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:18,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:18,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:18,812 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:18,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:18,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:18,851 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:18,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:18,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:18,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:18,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:18,915 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:18,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:18,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,950 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:18,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:18,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:18,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:18,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:19,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,041 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:19,065 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 [2020-10-20 06:37:19,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,068 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 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 [2020-10-20 06:37:19,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,123 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:19,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:19,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:19,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,247 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:19,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,272 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:19,273 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:19,276 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:19,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 35 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,369 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:19,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:19,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:19,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:19,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:19,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:19,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:19,502 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:19,537 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-20 06:37:19,537 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) [2020-10-20 06:37:19,544 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 [2020-10-20 06:37:19,551 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:19,551 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:19,551 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 [] [2020-10-20 06:37:19,612 INFO L297 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2020-10-20 06:37:19,615 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:19,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:19,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:37:19,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:19,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:19,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:19,741 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 [2020-10-20 06:37:19,741 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 10 Second operand 6 states. [2020-10-20 06:37:19,872 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. [2020-10-20 06:37:19,876 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 [2020-10-20 06:37:19,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:37:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 48 transitions. [2020-10-20 06:37:19,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 06:37:19,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:19,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-20 06:37:19,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:19,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-20 06:37:19,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:19,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 72 transitions. [2020-10-20 06:37:19,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2020-10-20 06:37:19,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 43 states and 54 transitions. [2020-10-20 06:37:19,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-10-20 06:37:19,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2020-10-20 06:37:19,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2020-10-20 06:37:19,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:19,886 INFO L691 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2020-10-20 06:37:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2020-10-20 06:37:19,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2020-10-20 06:37:19,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 06:37:19,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2020-10-20 06:37:19,892 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-10-20 06:37:19,893 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-10-20 06:37:19,893 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:37:19,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2020-10-20 06:37:19,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:19,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:19,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:19,898 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:19,898 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:19,898 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 [2020-10-20 06:37:19,899 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:19,899 INFO L82 PathProgramCache]: Analyzing trace with hash 51953446, now seen corresponding path program 1 times [2020-10-20 06:37:19,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:19,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028766242] [2020-10-20 06:37:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:19,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:19,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028766242] [2020-10-20 06:37:19,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:19,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:37:19,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338332274] [2020-10-20 06:37:19,987 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:19,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:19,987 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 1 times [2020-10-20 06:37:19,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:19,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410956380] [2020-10-20 06:37:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,999 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,001 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:20,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:20,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:37:20,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:37:20,100 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-10-20 06:37:20,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:20,145 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2020-10-20 06:37:20,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:37:20,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2020-10-20 06:37:20,147 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:20,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 38 transitions. [2020-10-20 06:37:20,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-10-20 06:37:20,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-20 06:37:20,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2020-10-20 06:37:20,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:20,149 INFO L691 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-20 06:37:20,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2020-10-20 06:37:20,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-20 06:37:20,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 06:37:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-20 06:37:20,152 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-20 06:37:20,152 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-20 06:37:20,152 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 06:37:20,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2020-10-20 06:37:20,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:20,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:20,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:20,154 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:20,155 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:20,155 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 [2020-10-20 06:37:20,155 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:20,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1349410205, now seen corresponding path program 1 times [2020-10-20 06:37:20,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:20,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183812424] [2020-10-20 06:37:20,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:20,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183812424] [2020-10-20 06:37:20,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:20,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:37:20,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655232875] [2020-10-20 06:37:20,200 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:20,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,200 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 2 times [2020-10-20 06:37:20,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:20,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473613946] [2020-10-20 06:37:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,214 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:20,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:20,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:37:20,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:37:20,334 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-10-20 06:37:20,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:20,400 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-10-20 06:37:20,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:37:20,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 74 transitions. [2020-10-20 06:37:20,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2020-10-20 06:37:20,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 47 states and 56 transitions. [2020-10-20 06:37:20,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2020-10-20 06:37:20,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-10-20 06:37:20,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 56 transitions. [2020-10-20 06:37:20,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:20,406 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 56 transitions. [2020-10-20 06:37:20,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 56 transitions. [2020-10-20 06:37:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 31. [2020-10-20 06:37:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 06:37:20,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2020-10-20 06:37:20,408 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2020-10-20 06:37:20,409 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2020-10-20 06:37:20,409 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 06:37:20,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2020-10-20 06:37:20,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:20,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:20,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:20,410 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:20,410 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:20,411 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 [2020-10-20 06:37:20,411 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1796108770, now seen corresponding path program 1 times [2020-10-20 06:37:20,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:20,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898262527] [2020-10-20 06:37:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:20,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898262527] [2020-10-20 06:37:20,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913135806] [2020-10-20 06:37:20,642 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 [2020-10-20 06:37:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:20,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:20,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 06:37:20,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:37:20,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2020-10-20 06:37:20,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768245322] [2020-10-20 06:37:20,741 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:20,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,742 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 3 times [2020-10-20 06:37:20,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:20,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15742076] [2020-10-20 06:37:20,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,750 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:20,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:20,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:37:20,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:37:20,860 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand 6 states. [2020-10-20 06:37:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:20,944 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-10-20 06:37:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:37:20,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 43 transitions. [2020-10-20 06:37:20,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:20,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 38 transitions. [2020-10-20 06:37:20,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-10-20 06:37:20,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-20 06:37:20,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2020-10-20 06:37:20,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:20,948 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-10-20 06:37:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2020-10-20 06:37:20,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-10-20 06:37:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 06:37:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-10-20 06:37:20,951 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-10-20 06:37:20,951 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-10-20 06:37:20,951 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-20 06:37:20,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2020-10-20 06:37:20,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:20,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:20,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:20,953 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] [2020-10-20 06:37:20,953 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:20,953 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 [2020-10-20 06:37:20,954 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:20,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1624521053, now seen corresponding path program 1 times [2020-10-20 06:37:20,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:20,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381689308] [2020-10-20 06:37:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:21,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:21,036 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:21,049 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:21,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:21,050 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 4 times [2020-10-20 06:37:21,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:21,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323081647] [2020-10-20 06:37:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:21,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:21,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:21,068 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:21,071 INFO L82 PathProgramCache]: Analyzing trace with hash 16049535, now seen corresponding path program 1 times [2020-10-20 06:37:21,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:21,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049533009] [2020-10-20 06:37:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:21,114 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:21,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:21,165 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:22,069 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 157 [2020-10-20 06:37:22,268 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-20 06:37:22,270 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:22,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:22,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:22,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:22,271 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:22,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:22,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:22,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration7_Lasso [2020-10-20 06:37:22,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:22,271 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:22,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,899 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-20 06:37:23,073 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2020-10-20 06:37:23,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:23,294 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-20 06:37:23,860 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:23,860 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 [2020-10-20 06:37:23,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,874 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,900 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,932 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:23,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:23,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,975 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:24,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,009 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,036 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,062 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 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,087 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 [2020-10-20 06:37:24,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,090 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,117 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,144 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 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 [2020-10-20 06:37:24,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,189 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:24,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,234 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 [2020-10-20 06:37:24,236 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,265 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 [2020-10-20 06:37:24,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,271 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,299 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,326 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:24,349 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 [2020-10-20 06:37:24,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,352 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,352 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 [2020-10-20 06:37:24,355 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,381 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,408 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:24,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,435 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:24,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,502 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:24,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,528 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,555 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 [2020-10-20 06:37:24,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,557 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-10-20 06:37:24,557 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 06:37:24,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,571 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-10-20 06:37:24,572 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 06:37:24,593 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:24,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,627 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:24,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,692 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:24,718 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-20 06:37:24,719 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) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,723 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:37:24,726 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:24,726 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:24,726 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strstr_~haystack.offset, v_rep(select #length ULTIMATE.start_strlen_~s.base)_3) = -1*ULTIMATE.start_strstr_~haystack.offset + 1*v_rep(select #length ULTIMATE.start_strlen_~s.base)_3 Supporting invariants [] [2020-10-20 06:37:24,914 INFO L297 tatePredicateManager]: 33 out of 36 supporting invariants were superfluous and have been removed [2020-10-20 06:37:24,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:24,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:24,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:37:24,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:25,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:37:25,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:25,075 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 [2020-10-20 06:37:25,075 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand 6 states. [2020-10-20 06:37:25,152 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. [2020-10-20 06:37:25,154 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 [2020-10-20 06:37:25,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:37:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-10-20 06:37:25,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 22 letters. Loop has 4 letters. [2020-10-20 06:37:25,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:25,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 26 letters. Loop has 4 letters. [2020-10-20 06:37:25,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:25,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 22 letters. Loop has 8 letters. [2020-10-20 06:37:25,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:25,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2020-10-20 06:37:25,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:25,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 45 transitions. [2020-10-20 06:37:25,158 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-20 06:37:25,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-20 06:37:25,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 45 transitions. [2020-10-20 06:37:25,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:25,158 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-10-20 06:37:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 45 transitions. [2020-10-20 06:37:25,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-20 06:37:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 06:37:25,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-10-20 06:37:25,161 INFO L714 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-10-20 06:37:25,161 INFO L594 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-10-20 06:37:25,162 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-20 06:37:25,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 44 transitions. [2020-10-20 06:37:25,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:25,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:25,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:25,163 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] [2020-10-20 06:37:25,164 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:25,164 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 [2020-10-20 06:37:25,164 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 [2020-10-20 06:37:25,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,165 INFO L82 PathProgramCache]: Analyzing trace with hash -2091601114, now seen corresponding path program 1 times [2020-10-20 06:37:25,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200897583] [2020-10-20 06:37:25,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,245 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:25,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,246 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 1 times [2020-10-20 06:37:25,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541816861] [2020-10-20 06:37:25,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,260 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:25,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,261 INFO L82 PathProgramCache]: Analyzing trace with hash 496824785, now seen corresponding path program 1 times [2020-10-20 06:37:25,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395259487] [2020-10-20 06:37:25,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,311 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:26,732 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 270 DAG size of output: 197 [2020-10-20 06:37:27,069 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-20 06:37:27,072 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:27,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:27,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:27,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:27,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:27,073 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:27,073 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:27,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:27,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration8_Lasso [2020-10-20 06:37:27,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:27,074 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:27,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,231 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 125 [2020-10-20 06:37:28,711 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2020-10-20 06:37:28,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:29,220 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-10-20 06:37:29,801 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-20 06:37:30,021 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:30,022 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 [2020-10-20 06:37:30,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,028 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,055 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,082 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 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,107 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,133 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,169 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,197 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,223 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,251 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:30,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,315 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,341 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 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 [2020-10-20 06:37:30,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,367 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,396 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,423 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,448 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,492 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:30,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,536 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 [2020-10-20 06:37:30,538 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:30,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,585 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:30,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:30,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,648 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:30,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:30,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:30,674 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,703 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:30,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,746 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,767 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 [2020-10-20 06:37:30,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,779 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,797 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:30,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,821 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,826 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,858 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,886 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:30,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,947 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:30,969 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:31,017 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:31,159 INFO L443 ModelExtractionUtils]: Simplification made 38 calls to the SMT solver. [2020-10-20 06:37:31,159 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) Waiting until toolchain timeout for monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:31,161 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:37:31,163 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:31,163 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:31,163 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 [] [2020-10-20 06:37:31,491 INFO L297 tatePredicateManager]: 50 out of 53 supporting invariants were superfluous and have been removed [2020-10-20 06:37:31,499 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:31,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:31,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 44 conjunts are in the unsatisfiable core [2020-10-20 06:37:31,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:31,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-20 06:37:31,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:31,752 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 [2020-10-20 06:37:31,752 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 44 transitions. cyclomatic complexity: 11 Second operand 9 states. [2020-10-20 06:37:32,105 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. [2020-10-20 06:37:32,105 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 [2020-10-20 06:37:32,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 06:37:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 51 transitions. [2020-10-20 06:37:32,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 51 transitions. Stem has 24 letters. Loop has 3 letters. [2020-10-20 06:37:32,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:32,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 51 transitions. Stem has 27 letters. Loop has 3 letters. [2020-10-20 06:37:32,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:32,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 51 transitions. Stem has 24 letters. Loop has 6 letters. [2020-10-20 06:37:32,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:32,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 113 transitions. [2020-10-20 06:37:32,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:32,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 72 states and 87 transitions. [2020-10-20 06:37:32,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-10-20 06:37:32,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2020-10-20 06:37:32,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 87 transitions. [2020-10-20 06:37:32,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:32,114 INFO L691 BuchiCegarLoop]: Abstraction has 72 states and 87 transitions. [2020-10-20 06:37:32,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 87 transitions. [2020-10-20 06:37:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 43. [2020-10-20 06:37:32,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-20 06:37:32,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2020-10-20 06:37:32,124 INFO L714 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2020-10-20 06:37:32,124 INFO L594 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2020-10-20 06:37:32,124 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-20 06:37:32,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 52 transitions. [2020-10-20 06:37:32,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:32,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:32,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:32,127 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] [2020-10-20 06:37:32,127 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:32,127 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:32,128 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 [2020-10-20 06:37:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:32,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1756263678, now seen corresponding path program 1 times [2020-10-20 06:37:32,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:32,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987652037] [2020-10-20 06:37:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:32,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987652037] [2020-10-20 06:37:32,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964276991] [2020-10-20 06:37:32,294 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 [2020-10-20 06:37:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:32,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-20 06:37:32,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:32,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:37:32,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2020-10-20 06:37:32,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641842080] [2020-10-20 06:37:32,471 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:32,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:32,471 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 2 times [2020-10-20 06:37:32,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:32,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247455538] [2020-10-20 06:37:32,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:32,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:32,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:32,483 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:32,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:32,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-20 06:37:32,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-20 06:37:32,570 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. cyclomatic complexity: 14 Second operand 16 states. [2020-10-20 06:37:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:32,864 INFO L93 Difference]: Finished difference Result 133 states and 162 transitions. [2020-10-20 06:37:32,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:37:32,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 162 transitions. [2020-10-20 06:37:32,867 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-20 06:37:32,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 115 states and 141 transitions. [2020-10-20 06:37:32,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2020-10-20 06:37:32,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2020-10-20 06:37:32,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 141 transitions. [2020-10-20 06:37:32,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:32,874 INFO L691 BuchiCegarLoop]: Abstraction has 115 states and 141 transitions. [2020-10-20 06:37:32,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 141 transitions. [2020-10-20 06:37:32,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 54. [2020-10-20 06:37:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-20 06:37:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-10-20 06:37:32,879 INFO L714 BuchiCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-10-20 06:37:32,879 INFO L594 BuchiCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-10-20 06:37:32,879 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-20 06:37:32,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 64 transitions. [2020-10-20 06:37:32,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:32,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:32,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:32,880 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] [2020-10-20 06:37:32,881 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:32,881 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:32,881 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 [2020-10-20 06:37:32,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:32,881 INFO L82 PathProgramCache]: Analyzing trace with hash -421611971, now seen corresponding path program 2 times [2020-10-20 06:37:32,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:32,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584240740] [2020-10-20 06:37:32,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:37:33,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584240740] [2020-10-20 06:37:33,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566838239] [2020-10-20 06:37:33,101 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 [2020-10-20 06:37:33,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:37:33,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:37:33,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-20 06:37:33,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:37:33,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:37:33,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2020-10-20 06:37:33,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695733321] [2020-10-20 06:37:33,281 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:33,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:33,282 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 3 times [2020-10-20 06:37:33,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:33,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694446538] [2020-10-20 06:37:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:33,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:33,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:33,292 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:33,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:33,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-20 06:37:33,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-20 06:37:33,380 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. cyclomatic complexity: 15 Second operand 16 states. [2020-10-20 06:37:33,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:33,715 INFO L93 Difference]: Finished difference Result 189 states and 232 transitions. [2020-10-20 06:37:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:37:33,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 232 transitions. [2020-10-20 06:37:33,717 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2020-10-20 06:37:33,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 184 states and 227 transitions. [2020-10-20 06:37:33,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2020-10-20 06:37:33,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2020-10-20 06:37:33,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 227 transitions. [2020-10-20 06:37:33,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:33,722 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 227 transitions. [2020-10-20 06:37:33,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 227 transitions. [2020-10-20 06:37:33,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 57. [2020-10-20 06:37:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 06:37:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2020-10-20 06:37:33,728 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-10-20 06:37:33,728 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-10-20 06:37:33,728 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-20 06:37:33,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 68 transitions. [2020-10-20 06:37:33,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:33,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:33,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:33,730 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] [2020-10-20 06:37:33,731 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:33,731 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:33,731 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 [2020-10-20 06:37:33,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:33,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1765677085, now seen corresponding path program 3 times [2020-10-20 06:37:33,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:33,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563745759] [2020-10-20 06:37:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:33,752 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:33,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:33,780 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:33,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:33,781 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 4 times [2020-10-20 06:37:33,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:33,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931860329] [2020-10-20 06:37:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:33,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:33,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:33,803 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:33,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:33,804 INFO L82 PathProgramCache]: Analyzing trace with hash 821646714, now seen corresponding path program 1 times [2020-10-20 06:37:33,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:33,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166218554] [2020-10-20 06:37:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:33,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:33,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:33,861 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:35,793 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 318 DAG size of output: 232 [2020-10-20 06:37:36,153 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-20 06:37:36,156 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:36,157 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:36,157 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:36,157 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:36,157 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:36,157 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:36,157 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:36,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:36,158 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration11_Lasso [2020-10-20 06:37:36,158 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:36,158 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:36,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:36,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:37,382 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 125 [2020-10-20 06:37:37,693 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2020-10-20 06:37:37,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:37,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:37,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:37,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:37,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:37,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:37,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:37,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,295 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-20 06:37:38,886 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-20 06:37:39,368 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-10-20 06:37:39,438 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:39,438 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 [2020-10-20 06:37:39,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,445 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,473 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,500 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,526 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,551 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,577 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 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 [2020-10-20 06:37:39,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:39,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:39,626 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:39,664 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 [2020-10-20 06:37:39,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:39,669 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,701 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:39,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,754 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,780 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:39,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:39,809 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,836 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,857 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 [2020-10-20 06:37:39,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,860 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:39,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,891 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:39,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:39,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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) Waiting until toolchain timeout for monitored process 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:39,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:39,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:39,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:39,973 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 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 [2020-10-20 06:37:39,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:39,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:39,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:39,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:39,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:39,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:39,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:40,001 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:40,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:40,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:40,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:40,027 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:40,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:40,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:40,056 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:40,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:40,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:40,089 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 [2020-10-20 06:37:40,091 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:40,117 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 [2020-10-20 06:37:40,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:40,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:40,125 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:40,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:40,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:40,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:40,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:40,162 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:40,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:40,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:40,191 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:40,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:40,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:40,254 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:40,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:40,299 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 [2020-10-20 06:37:40,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:40,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:40,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:40,385 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:40,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:40,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:40,462 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 [2020-10-20 06:37:40,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:40,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:40,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:40,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:40,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:40,530 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 [2020-10-20 06:37:40,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:40,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:40,608 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:40,795 INFO L443 ModelExtractionUtils]: Simplification made 34 calls to the SMT solver. [2020-10-20 06:37:40,795 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) [2020-10-20 06:37:40,799 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 [2020-10-20 06:37:40,801 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:40,802 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:40,802 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 [] [2020-10-20 06:37:41,162 INFO L297 tatePredicateManager]: 58 out of 60 supporting invariants were superfluous and have been removed [2020-10-20 06:37:41,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:41,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-20 06:37:41,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:41,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:37:41,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:41,311 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 [2020-10-20 06:37:41,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 68 transitions. cyclomatic complexity: 16 Second operand 6 states. [2020-10-20 06:37:41,378 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. [2020-10-20 06:37:41,381 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 [2020-10-20 06:37:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:37:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 41 transitions. [2020-10-20 06:37:41,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 31 letters. Loop has 3 letters. [2020-10-20 06:37:41,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:41,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 34 letters. Loop has 3 letters. [2020-10-20 06:37:41,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:41,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 31 letters. Loop has 6 letters. [2020-10-20 06:37:41,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:41,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 132 transitions. [2020-10-20 06:37:41,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:41,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 81 states and 99 transitions. [2020-10-20 06:37:41,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-10-20 06:37:41,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-10-20 06:37:41,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 99 transitions. [2020-10-20 06:37:41,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:41,387 INFO L691 BuchiCegarLoop]: Abstraction has 81 states and 99 transitions. [2020-10-20 06:37:41,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 99 transitions. [2020-10-20 06:37:41,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 60. [2020-10-20 06:37:41,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 06:37:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2020-10-20 06:37:41,390 INFO L714 BuchiCegarLoop]: Abstraction has 60 states and 71 transitions. [2020-10-20 06:37:41,390 INFO L594 BuchiCegarLoop]: Abstraction has 60 states and 71 transitions. [2020-10-20 06:37:41,391 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-20 06:37:41,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 71 transitions. [2020-10-20 06:37:41,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:41,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:41,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:41,393 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] [2020-10-20 06:37:41,393 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:41,393 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:41,393 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 [2020-10-20 06:37:41,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:41,394 INFO L82 PathProgramCache]: Analyzing trace with hash 191871499, now seen corresponding path program 1 times [2020-10-20 06:37:41,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:41,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740865932] [2020-10-20 06:37:41,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-20 06:37:41,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740865932] [2020-10-20 06:37:41,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:41,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:37:41,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938559960] [2020-10-20 06:37:41,432 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:41,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:41,433 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 5 times [2020-10-20 06:37:41,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:41,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116740444] [2020-10-20 06:37:41,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:41,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:41,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:41,447 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:41,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:41,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:37:41,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:37:41,544 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. cyclomatic complexity: 17 Second operand 4 states. [2020-10-20 06:37:41,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:41,564 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2020-10-20 06:37:41,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:37:41,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 72 transitions. [2020-10-20 06:37:41,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:41,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 59 states and 68 transitions. [2020-10-20 06:37:41,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-10-20 06:37:41,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2020-10-20 06:37:41,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 68 transitions. [2020-10-20 06:37:41,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:41,568 INFO L691 BuchiCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-10-20 06:37:41,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 68 transitions. [2020-10-20 06:37:41,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-20 06:37:41,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 06:37:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2020-10-20 06:37:41,572 INFO L714 BuchiCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-10-20 06:37:41,572 INFO L594 BuchiCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-10-20 06:37:41,572 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-10-20 06:37:41,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 68 transitions. [2020-10-20 06:37:41,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:41,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:41,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:41,574 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] [2020-10-20 06:37:41,574 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:41,575 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:41,575 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 [2020-10-20 06:37:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:41,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1795103955, now seen corresponding path program 1 times [2020-10-20 06:37:41,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:41,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972605727] [2020-10-20 06:37:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-20 06:37:41,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972605727] [2020-10-20 06:37:41,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:41,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:37:41,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825519134] [2020-10-20 06:37:41,667 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:41,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:41,667 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 6 times [2020-10-20 06:37:41,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:41,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138240815] [2020-10-20 06:37:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:41,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:41,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:41,679 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:41,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:41,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:37:41,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:37:41,761 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-20 06:37:41,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:41,883 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2020-10-20 06:37:41,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:37:41,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 79 transitions. [2020-10-20 06:37:41,887 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:41,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 68 states and 77 transitions. [2020-10-20 06:37:41,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2020-10-20 06:37:41,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2020-10-20 06:37:41,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 77 transitions. [2020-10-20 06:37:41,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:41,888 INFO L691 BuchiCegarLoop]: Abstraction has 68 states and 77 transitions. [2020-10-20 06:37:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 77 transitions. [2020-10-20 06:37:41,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2020-10-20 06:37:41,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-20 06:37:41,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2020-10-20 06:37:41,891 INFO L714 BuchiCegarLoop]: Abstraction has 63 states and 72 transitions. [2020-10-20 06:37:41,891 INFO L594 BuchiCegarLoop]: Abstraction has 63 states and 72 transitions. [2020-10-20 06:37:41,891 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-10-20 06:37:41,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 72 transitions. [2020-10-20 06:37:41,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:41,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:41,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:41,897 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] [2020-10-20 06:37:41,899 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:41,899 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:41,900 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 [2020-10-20 06:37:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:41,901 INFO L82 PathProgramCache]: Analyzing trace with hash -2138077336, now seen corresponding path program 1 times [2020-10-20 06:37:41,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:41,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110414033] [2020-10-20 06:37:41,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:42,088 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-20 06:37:42,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110414033] [2020-10-20 06:37:42,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656828389] [2020-10-20 06:37:42,089 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 [2020-10-20 06:37:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:42,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-20 06:37:42,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-20 06:37:42,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:37:42,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-10-20 06:37:42,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817027010] [2020-10-20 06:37:42,290 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:42,293 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 7 times [2020-10-20 06:37:42,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:42,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020311129] [2020-10-20 06:37:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:42,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:42,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:42,305 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:42,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:42,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:37:42,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:37:42,394 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. cyclomatic complexity: 15 Second operand 10 states. [2020-10-20 06:37:42,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:42,589 INFO L93 Difference]: Finished difference Result 127 states and 143 transitions. [2020-10-20 06:37:42,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:37:42,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 127 states and 143 transitions. [2020-10-20 06:37:42,591 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 06:37:42,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 127 states to 99 states and 113 transitions. [2020-10-20 06:37:42,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-10-20 06:37:42,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-10-20 06:37:42,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 113 transitions. [2020-10-20 06:37:42,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:42,593 INFO L691 BuchiCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-10-20 06:37:42,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 113 transitions. [2020-10-20 06:37:42,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 63. [2020-10-20 06:37:42,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-20 06:37:42,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-10-20 06:37:42,596 INFO L714 BuchiCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-10-20 06:37:42,596 INFO L594 BuchiCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-10-20 06:37:42,596 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-10-20 06:37:42,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 71 transitions. [2020-10-20 06:37:42,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:42,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:42,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:42,598 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] [2020-10-20 06:37:42,598 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:42,599 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:42,599 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 [2020-10-20 06:37:42,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:42,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1050158307, now seen corresponding path program 2 times [2020-10-20 06:37:42,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:42,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282275248] [2020-10-20 06:37:42,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 06:37:42,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282275248] [2020-10-20 06:37:42,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634940020] [2020-10-20 06:37:42,824 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 [2020-10-20 06:37:42,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:37:42,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:37:42,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjunts are in the unsatisfiable core [2020-10-20 06:37:42,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 06:37:43,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:37:43,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2020-10-20 06:37:43,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123150910] [2020-10-20 06:37:43,058 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:43,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:43,059 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 8 times [2020-10-20 06:37:43,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:43,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130699824] [2020-10-20 06:37:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:43,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:43,068 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:43,069 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:43,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:43,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-20 06:37:43,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2020-10-20 06:37:43,173 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. cyclomatic complexity: 14 Second operand 19 states. [2020-10-20 06:37:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:43,578 INFO L93 Difference]: Finished difference Result 195 states and 222 transitions. [2020-10-20 06:37:43,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-20 06:37:43,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 222 transitions. [2020-10-20 06:37:43,583 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-10-20 06:37:43,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 174 states and 200 transitions. [2020-10-20 06:37:43,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2020-10-20 06:37:43,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2020-10-20 06:37:43,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 200 transitions. [2020-10-20 06:37:43,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:43,585 INFO L691 BuchiCegarLoop]: Abstraction has 174 states and 200 transitions. [2020-10-20 06:37:43,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 200 transitions. [2020-10-20 06:37:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 66. [2020-10-20 06:37:43,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-20 06:37:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2020-10-20 06:37:43,588 INFO L714 BuchiCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-20 06:37:43,588 INFO L594 BuchiCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-20 06:37:43,588 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-10-20 06:37:43,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 74 transitions. [2020-10-20 06:37:43,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:43,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:43,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:43,590 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] [2020-10-20 06:37:43,590 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:43,591 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~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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 [2020-10-20 06:37:43,591 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 [2020-10-20 06:37:43,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:43,591 INFO L82 PathProgramCache]: Analyzing trace with hash 584016579, now seen corresponding path program 3 times [2020-10-20 06:37:43,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:43,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307752482] [2020-10-20 06:37:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 06:37:43,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307752482] [2020-10-20 06:37:43,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444174901] [2020-10-20 06:37:43,823 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 [2020-10-20 06:37:43,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-20 06:37:43,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:37:43,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-20 06:37:43,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-20 06:37:46,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:37:46,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 18 [2020-10-20 06:37:46,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523377931] [2020-10-20 06:37:46,300 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:46,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:46,300 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 9 times [2020-10-20 06:37:46,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:46,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617498743] [2020-10-20 06:37:46,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:46,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:46,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:46,311 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:46,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:46,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-20 06:37:46,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=264, Unknown=1, NotChecked=0, Total=306 [2020-10-20 06:37:46,436 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. cyclomatic complexity: 14 Second operand 18 states. [2020-10-20 06:37:48,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:48,396 INFO L93 Difference]: Finished difference Result 284 states and 324 transitions. [2020-10-20 06:37:48,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-20 06:37:48,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 284 states and 324 transitions. [2020-10-20 06:37:48,399 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-10-20 06:37:48,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 284 states to 258 states and 297 transitions. [2020-10-20 06:37:48,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2020-10-20 06:37:48,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 87 [2020-10-20 06:37:48,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 258 states and 297 transitions. [2020-10-20 06:37:48,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:48,402 INFO L691 BuchiCegarLoop]: Abstraction has 258 states and 297 transitions. [2020-10-20 06:37:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states and 297 transitions. [2020-10-20 06:37:48,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 66. [2020-10-20 06:37:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-20 06:37:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2020-10-20 06:37:48,405 INFO L714 BuchiCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-20 06:37:48,405 INFO L594 BuchiCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-20 06:37:48,406 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-10-20 06:37:48,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 74 transitions. [2020-10-20 06:37:48,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:48,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:48,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:48,408 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] [2020-10-20 06:37:48,408 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:48,408 INFO L794 eck$LassoCheckResult]: Stem: 4394#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4370#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; 4371#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; 4380#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; 4386#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 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; 4402#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; 4389#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4390#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; 4415#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; 4414#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4396#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; 4397#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; 4403#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4395#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4391#L509-5 strlen_#res := strlen_~i~0; 4372#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; 4373#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 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; 4405#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; 4376#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4377#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; 4364#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; 4365#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4392#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4381#L509-11 strlen_#res := strlen_~i~0; 4378#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 4379#L529 assume !(0 == strstr_~nl~0 % 4294967296); 4382#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 4383#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; 4400#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; 4363#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4360#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; 4361#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; 4399#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4418#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; 4404#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 4393#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 4368#L532-2 assume !strstr_#t~short17;havoc strstr_#t~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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; 4417#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 4416#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; 4366#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; 4362#L517-3 [2020-10-20 06:37:48,409 INFO L796 eck$LassoCheckResult]: Loop: 4362#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; 4362#L517-3 [2020-10-20 06:37:48,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:48,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1423552120, now seen corresponding path program 4 times [2020-10-20 06:37:48,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:48,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558721997] [2020-10-20 06:37:48,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-20 06:37:48,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558721997] [2020-10-20 06:37:48,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991257231] [2020-10-20 06:37:48,649 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 [2020-10-20 06:37:48,730 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-20 06:37:48,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:37:48,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 25 conjunts are in the unsatisfiable core [2020-10-20 06:37:48,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:48,887 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-20 06:37:48,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:37:48,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2020-10-20 06:37:48,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691131238] [2020-10-20 06:37:48,888 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:48,889 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 10 times [2020-10-20 06:37:48,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:48,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003148503] [2020-10-20 06:37:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:48,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:48,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:48,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:49,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:49,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-20 06:37:49,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2020-10-20 06:37:49,019 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. cyclomatic complexity: 14 Second operand 19 states. [2020-10-20 06:37:49,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:49,463 INFO L93 Difference]: Finished difference Result 231 states and 264 transitions. [2020-10-20 06:37:49,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 06:37:49,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 264 transitions. [2020-10-20 06:37:49,466 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2020-10-20 06:37:49,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 226 states and 259 transitions. [2020-10-20 06:37:49,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2020-10-20 06:37:49,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2020-10-20 06:37:49,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 226 states and 259 transitions. [2020-10-20 06:37:49,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:49,468 INFO L691 BuchiCegarLoop]: Abstraction has 226 states and 259 transitions. [2020-10-20 06:37:49,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states and 259 transitions. [2020-10-20 06:37:49,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 69. [2020-10-20 06:37:49,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 06:37:49,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2020-10-20 06:37:49,472 INFO L714 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-10-20 06:37:49,472 INFO L594 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-10-20 06:37:49,472 INFO L427 BuchiCegarLoop]: ======== Iteration 18============ [2020-10-20 06:37:49,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 78 transitions. [2020-10-20 06:37:49,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:37:49,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:49,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:49,474 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] [2020-10-20 06:37:49,474 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:37:49,474 INFO L794 eck$LassoCheckResult]: Stem: 4855#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4829#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; 4830#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; 4839#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; 4844#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4845#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; 4861#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; 4848#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4849#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; 4857#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; 4877#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4856#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4850#L509-5 strlen_#res := strlen_~i~0; 4831#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; 4832#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4846#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4870#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; 4869#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; 4868#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; 4852#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; 4835#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4836#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; 4823#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; 4824#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4851#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4840#L509-11 strlen_#res := strlen_~i~0; 4837#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 4838#L529 assume !(0 == strstr_~nl~0 % 4294967296); 4841#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 4842#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; 4826#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; 4828#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4881#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; 4859#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; 4860#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4818#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; 4819#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 4853#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 4854#L532-2 assume !strstr_#t~short17;havoc strstr_#t~ret16;havoc strstr_#t~mem14;havoc strstr_#t~short17;havoc strstr_#t~mem15;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; 4866#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 4865#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; 4825#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; 4820#L517-3 [2020-10-20 06:37:49,474 INFO L796 eck$LassoCheckResult]: Loop: 4820#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_#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; 4820#L517-3 [2020-10-20 06:37:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:49,475 INFO L82 PathProgramCache]: Analyzing trace with hash -224601240, now seen corresponding path program 5 times [2020-10-20 06:37:49,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:49,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873745910] [2020-10-20 06:37:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:49,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:49,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:49,552 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:49,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:49,553 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 11 times [2020-10-20 06:37:49,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:49,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781173783] [2020-10-20 06:37:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:49,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:49,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:49,562 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:49,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:49,563 INFO L82 PathProgramCache]: Analyzing trace with hash 463587919, now seen corresponding path program 6 times [2020-10-20 06:37:49,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:49,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345831126] [2020-10-20 06:37:49,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:49,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:49,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:49,662 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:53,708 WARN L193 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 476 DAG size of output: 339 [2020-10-20 06:37:54,393 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-20 06:37:54,398 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:54,398 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:54,398 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:54,398 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:54,398 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:54,398 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:54,398 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:54,398 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:54,399 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration18_Lasso [2020-10-20 06:37:54,399 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:54,399 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:54,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:54,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:56,224 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 145 [2020-10-20 06:37:56,625 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94 [2020-10-20 06:37:56,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:56,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:56,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:56,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:56,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:57,311 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-20 06:37:57,555 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-20 06:37:58,105 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-20 06:37:59,070 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-20 06:37:59,126 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:59,126 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) [2020-10-20 06:37:59,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,137 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 [2020-10-20 06:37:59,139 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 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:59,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,180 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 [2020-10-20 06:37:59,182 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:59,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,248 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 [2020-10-20 06:37:59,250 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:59,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,282 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:37:59,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,322 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 [2020-10-20 06:37:59,327 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:59,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:59,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:59,401 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:59,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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 [2020-10-20 06:37:59,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,451 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,477 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:59,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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 [2020-10-20 06:37:59,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,529 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:59,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:59,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:59,555 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,582 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,610 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,635 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,660 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,687 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:59,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:59,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:59,716 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 157 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 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:59,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,741 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:59,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:59,769 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,792 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 [2020-10-20 06:37:59,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,795 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:59,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,821 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,848 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 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 [2020-10-20 06:37:59,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:59,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:59,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:59,873 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,894 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 [2020-10-20 06:37:59,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:59,897 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:59,900 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 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 [2020-10-20 06:37:59,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,923 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-20 06:37:59,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,924 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 06:37:59,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:59,927 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:37:59,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:59,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,953 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:59,953 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:59,957 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 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 [2020-10-20 06:37:59,979 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 [2020-10-20 06:37:59,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:59,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:59,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:59,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:59,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:59,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:59,984 INFO L522 LassoAnalysis]: Proving 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 [2020-10-20 06:38:00,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:38:00,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:38:00,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:38:00,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:38:00,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:38:00,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:38:00,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:38:00,040 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 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:38:00,075 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 Waiting until toolchain timeout for monitored process 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:38:00,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:38:00,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:38:00,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:38:00,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:38:00,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:38:00,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:38:00,129 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:38:00,163 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-20 06:38:00,163 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) Waiting until toolchain timeout for monitored process 169 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:38:00,165 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:38:00,167 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:38:00,167 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:38:00,167 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strlen_~s.base)_4, ULTIMATE.start_memcmp_~d~0.offset) = 1*v_rep(select #length ULTIMATE.start_strlen_~s.base)_4 - 1*ULTIMATE.start_memcmp_~d~0.offset Supporting invariants [] [2020-10-20 06:38:00,789 INFO L297 tatePredicateManager]: 83 out of 86 supporting invariants were superfluous and have been removed [2020-10-20 06:38:00,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:38:00,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:38:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:38:00,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-20 06:38:00,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:38:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:38:00,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:38:00,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:38:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:38:00,989 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 [2020-10-20 06:38:00,989 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-20 06:38:01,105 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. [2020-10-20 06:38:01,107 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 [2020-10-20 06:38:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:38:01,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2020-10-20 06:38:01,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2020-10-20 06:38:01,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:38:01,109 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:38:01,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:38:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:38:01,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-20 06:38:01,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:38:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:38:01,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:38:01,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:38:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:38:01,292 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 [2020-10-20 06:38:01,292 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-20 06:38:01,375 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. [2020-10-20 06:38:01,377 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 [2020-10-20 06:38:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:38:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2020-10-20 06:38:01,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2020-10-20 06:38:01,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:38:01,378 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:38:01,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:38:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:38:01,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-20 06:38:01,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:38:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:38:01,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:38:01,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:38:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:38:01,584 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 [2020-10-20 06:38:01,584 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-20 06:38:01,669 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. [2020-10-20 06:38:01,670 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 [2020-10-20 06:38:01,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:38:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2020-10-20 06:38:01,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 44 letters. Loop has 3 letters. [2020-10-20 06:38:01,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:38:01,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 47 letters. Loop has 3 letters. [2020-10-20 06:38:01,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:38:01,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 44 letters. Loop has 6 letters. [2020-10-20 06:38:01,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:38:01,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 100 transitions. [2020-10-20 06:38:01,673 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:38:01,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 0 states and 0 transitions. [2020-10-20 06:38:01,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:38:01,674 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:38:01,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:38:01,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:38:01,675 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:38:01,675 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:38:01,675 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:38:01,676 INFO L427 BuchiCegarLoop]: ======== Iteration 19============ [2020-10-20 06:38:01,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:38:01,676 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:38:01,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:38:01,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:38:01 BoogieIcfgContainer [2020-10-20 06:38:01,683 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:38:01,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:38:01,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:38:01,684 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:38:01,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:13" (3/4) ... [2020-10-20 06:38:01,688 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:38:01,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:38:01,689 INFO L168 Benchmark]: Toolchain (without parser) took 49654.04 ms. Allocated memory was 36.7 MB in the beginning and 249.6 MB in the end (delta: 212.9 MB). Free memory was 9.3 MB in the beginning and 115.8 MB in the end (delta: -106.5 MB). Peak memory consumption was 106.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:38:01,689 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 36.7 MB. Free memory is still 15.6 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:38:01,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.04 ms. Allocated memory was 36.7 MB in the beginning and 45.6 MB in the end (delta: 8.9 MB). Free memory was 8.5 MB in the beginning and 16.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:38:01,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.57 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 15.9 MB in the beginning and 29.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:38:01,690 INFO L168 Benchmark]: Boogie Preprocessor took 38.10 ms. Allocated memory is still 47.7 MB. Free memory was 29.0 MB in the beginning and 27.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:38:01,690 INFO L168 Benchmark]: RCFGBuilder took 507.21 ms. Allocated memory is still 47.7 MB. Free memory was 27.1 MB in the beginning and 20.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 17.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:38:01,690 INFO L168 Benchmark]: BuchiAutomizer took 48390.90 ms. Allocated memory was 47.7 MB in the beginning and 249.6 MB in the end (delta: 201.9 MB). Free memory was 19.8 MB in the beginning and 115.8 MB in the end (delta: -96.0 MB). Peak memory consumption was 105.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:38:01,690 INFO L168 Benchmark]: Witness Printer took 3.97 ms. Allocated memory is still 249.6 MB. Free memory is still 115.8 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:38:01,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 36.7 MB. Free memory is still 15.6 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 646.04 ms. Allocated memory was 36.7 MB in the beginning and 45.6 MB in the end (delta: 8.9 MB). Free memory was 8.5 MB in the beginning and 16.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 59.57 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 15.9 MB in the beginning and 29.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 38.10 ms. Allocated memory is still 47.7 MB. Free memory was 29.0 MB in the beginning and 27.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 507.21 ms. Allocated memory is still 47.7 MB. Free memory was 27.1 MB in the beginning and 20.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 17.1 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 48390.90 ms. Allocated memory was 47.7 MB in the beginning and 249.6 MB in the end (delta: 201.9 MB). Free memory was 19.8 MB in the beginning and 115.8 MB in the end (delta: -96.0 MB). Peak memory consumption was 105.9 MB. Max. memory is 14.3 GB. * Witness Printer took 3.97 ms. Allocated memory is still 249.6 MB. Free memory is still 115.8 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 -1 * haystack + unknown-#length-unknown[s] 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 unknown-#length-unknown[s] + -1 * d 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 48.3s and 19 iterations. TraceHistogramMax:4. Analysis of lassos took 41.5s. Construction of modules took 2.6s. Büchi inclusion checks took 3.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 17. Automata minimization 0.0s 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, 1328 SDslu, 3502 SDs, 0 SdLazy, 2044 SolverSat, 172 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.6s 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: 43ms 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...