./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.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 abee338f12eaa8176313da7ed567414f687b7fa7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:18:09,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:18:09,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:18:09,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:18:09,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:18:09,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:18:09,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:18:09,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:18:09,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:18:09,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:18:09,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:18:09,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:18:09,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:18:09,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:18:09,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:18:09,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:18:09,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:18:09,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:18:09,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:18:09,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:18:09,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:18:09,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:18:09,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:18:09,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:18:09,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:18:09,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:18:09,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:18:09,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:18:09,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:18:09,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:18:09,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:18:09,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:18:09,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:18:09,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:18:09,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:18:09,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:18:09,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:18:09,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:18:09,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:18:09,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:18:09,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:18:09,789 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:18:09,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:18:09,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:18:09,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:18:09,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:18:09,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:18:09,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:18:09,819 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:18:09,819 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:18:09,819 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:18:09,819 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:18:09,819 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:18:09,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:18:09,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:18:09,821 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:18:09,821 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:18:09,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:18:09,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:18:09,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:18:09,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:18:09,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:18:09,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:18:09,822 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:18:09,822 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abee338f12eaa8176313da7ed567414f687b7fa7 [2021-08-27 14:18:10,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:18:10,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:18:10,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:18:10,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:18:10,110 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:18:10,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i [2021-08-27 14:18:10,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d22eab5f/9ecc95cceae94208851665090aea3637/FLAG2f78e91fb [2021-08-27 14:18:10,552 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:18:10,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i [2021-08-27 14:18:10,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d22eab5f/9ecc95cceae94208851665090aea3637/FLAG2f78e91fb [2021-08-27 14:18:10,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d22eab5f/9ecc95cceae94208851665090aea3637 [2021-08-27 14:18:10,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:18:10,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:18:10,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:18:10,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:18:10,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:18:10,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b91c927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10, skipping insertion in model container [2021-08-27 14:18:10,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:18:10,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:18:10,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:18:10,798 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:18:10,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:18:10,849 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:18:10,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10 WrapperNode [2021-08-27 14:18:10,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:18:10,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:18:10,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:18:10,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:18:10,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:18:10,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:18:10,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:18:10,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:18:10,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:18:10,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:18:10,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:18:10,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:18:10,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (1/1) ... [2021-08-27 14:18:10,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:10,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:10,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:10,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 14:18:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 14:18:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:18:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 14:18:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 14:18:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:18:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:18:11,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:18:11,230 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-08-27 14:18:11,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:18:11 BoogieIcfgContainer [2021-08-27 14:18:11,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:18:11,232 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:18:11,232 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:18:11,234 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:18:11,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:18:11,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:18:10" (1/3) ... [2021-08-27 14:18:11,235 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@401455ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:18:11, skipping insertion in model container [2021-08-27 14:18:11,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:18:11,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:10" (2/3) ... [2021-08-27 14:18:11,235 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@401455ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:18:11, skipping insertion in model container [2021-08-27 14:18:11,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:18:11,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:18:11" (3/3) ... [2021-08-27 14:18:11,236 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.18-alloca.i [2021-08-27 14:18:11,277 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:18:11,278 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:18:11,278 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:18:11,278 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:18:11,278 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:18:11,278 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:18:11,278 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:18:11,278 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:18:11,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:11,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 14:18:11,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:11,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:11,307 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:11,308 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 14:18:11,308 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:18:11,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:11,310 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 14:18:11,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:11,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:11,310 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:11,311 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 14:18:11,315 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 13#L559-4true [2021-08-27 14:18:11,316 INFO L793 eck$LassoCheckResult]: Loop: 13#L559-4true call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 12#L553-1true assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 7#L553-3true assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 18#L554true assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 8#L559-3true assume !true; 13#L559-4true [2021-08-27 14:18:11,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:11,322 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 14:18:11,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:11,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117818265] [2021-08-27 14:18:11,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:11,418 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:11,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:11,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:11,470 INFO L82 PathProgramCache]: Analyzing trace with hash 35410170, now seen corresponding path program 1 times [2021-08-27 14:18:11,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:11,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905343644] [2021-08-27 14:18:11,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:11,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:11,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905343644] [2021-08-27 14:18:11,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905343644] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:18:11,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:18:11,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 14:18:11,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803950530] [2021-08-27 14:18:11,534 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:18:11,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:11,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 14:18:11,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 14:18:11,545 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:11,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:11,550 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2021-08-27 14:18:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 14:18:11,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2021-08-27 14:18:11,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 14:18:11,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 10 states and 14 transitions. [2021-08-27 14:18:11,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-08-27 14:18:11,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-08-27 14:18:11,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2021-08-27 14:18:11,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:18:11,558 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-08-27 14:18:11,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2021-08-27 14:18:11,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-08-27 14:18:11,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2021-08-27 14:18:11,575 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-08-27 14:18:11,575 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-08-27 14:18:11,575 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:18:11,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2021-08-27 14:18:11,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 14:18:11,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:11,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:11,577 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:11,577 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-27 14:18:11,577 INFO L791 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 43#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 50#L559-4 [2021-08-27 14:18:11,577 INFO L793 eck$LassoCheckResult]: Loop: 50#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 51#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 46#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 47#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 48#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 49#L559-1 assume !(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11; 50#L559-4 [2021-08-27 14:18:11,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:11,578 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-08-27 14:18:11,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:11,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367030334] [2021-08-27 14:18:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:11,606 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:11,623 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:11,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:11,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1097715097, now seen corresponding path program 1 times [2021-08-27 14:18:11,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:11,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455817849] [2021-08-27 14:18:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:11,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:11,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:11,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455817849] [2021-08-27 14:18:11,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455817849] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:18:11,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:18:11,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 14:18:11,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483409014] [2021-08-27 14:18:11,698 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:18:11,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:11,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 14:18:11,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 14:18:11,699 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:11,739 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2021-08-27 14:18:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 14:18:11,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2021-08-27 14:18:11,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-08-27 14:18:11,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 23 transitions. [2021-08-27 14:18:11,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-08-27 14:18:11,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-08-27 14:18:11,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2021-08-27 14:18:11,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:18:11,748 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-08-27 14:18:11,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2021-08-27 14:18:11,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2021-08-27 14:18:11,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:11,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-08-27 14:18:11,751 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-08-27 14:18:11,751 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-08-27 14:18:11,751 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:18:11,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-08-27 14:18:11,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-08-27 14:18:11,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:11,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:11,753 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:11,753 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-27 14:18:11,753 INFO L791 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 80#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 89#L559-4 [2021-08-27 14:18:11,754 INFO L793 eck$LassoCheckResult]: Loop: 89#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 88#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 83#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 84#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 81#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 82#L555-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 89#L559-4 [2021-08-27 14:18:11,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:11,755 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-08-27 14:18:11,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:11,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882213996] [2021-08-27 14:18:11,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:11,777 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:11,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:11,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:11,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1097700202, now seen corresponding path program 1 times [2021-08-27 14:18:11,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:11,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481531321] [2021-08-27 14:18:11,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:11,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:11,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481531321] [2021-08-27 14:18:11,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481531321] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:18:11,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:18:11,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 14:18:11,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731251132] [2021-08-27 14:18:11,832 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:18:11,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:11,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 14:18:11,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 14:18:11,834 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:11,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:11,870 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-08-27 14:18:11,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 14:18:11,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-08-27 14:18:11,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-08-27 14:18:11,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2021-08-27 14:18:11,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-08-27 14:18:11,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-08-27 14:18:11,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-08-27 14:18:11,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:18:11,873 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-08-27 14:18:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-08-27 14:18:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-08-27 14:18:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-08-27 14:18:11,875 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-08-27 14:18:11,875 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-08-27 14:18:11,875 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 14:18:11,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2021-08-27 14:18:11,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-08-27 14:18:11,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:11,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:11,877 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:11,877 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-08-27 14:18:11,877 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 117#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 125#L559-4 [2021-08-27 14:18:11,877 INFO L793 eck$LassoCheckResult]: Loop: 125#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 126#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 120#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 121#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 118#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 119#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 127#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 129#L555-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 125#L559-4 [2021-08-27 14:18:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:11,878 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2021-08-27 14:18:11,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:11,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54081083] [2021-08-27 14:18:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:11,899 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:11,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:11,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1672057937, now seen corresponding path program 1 times [2021-08-27 14:18:11,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:11,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699747964] [2021-08-27 14:18:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:11,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:11,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699747964] [2021-08-27 14:18:11,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699747964] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:18:11,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707723580] [2021-08-27 14:18:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:11,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 14:18:11,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:11,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 14:18:11,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-27 14:18:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:12,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 14:18:12,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:12,165 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-08-27 14:18:12,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 32 [2021-08-27 14:18:12,242 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-08-27 14:18:12,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 21 [2021-08-27 14:18:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:12,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707723580] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:18:12,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 14:18:12,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-08-27 14:18:12,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17370671] [2021-08-27 14:18:12,256 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:18:12,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:12,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 14:18:12,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-27 14:18:12,260 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 5 Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:12,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:12,370 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2021-08-27 14:18:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 14:18:12,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-08-27 14:18:12,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-08-27 14:18:12,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 20 transitions. [2021-08-27 14:18:12,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-08-27 14:18:12,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-08-27 14:18:12,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2021-08-27 14:18:12,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:18:12,375 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-08-27 14:18:12,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2021-08-27 14:18:12,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-27 14:18:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-08-27 14:18:12,377 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-08-27 14:18:12,377 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-08-27 14:18:12,378 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 14:18:12,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-08-27 14:18:12,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-08-27 14:18:12,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:12,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:12,380 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:12,381 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-08-27 14:18:12,381 INFO L791 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 191#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 199#L559-4 [2021-08-27 14:18:12,381 INFO L793 eck$LassoCheckResult]: Loop: 199#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 200#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 194#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 195#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 196#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 197#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 198#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 202#L559-1 assume !(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11; 199#L559-4 [2021-08-27 14:18:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2021-08-27 14:18:12,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:12,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806447385] [2021-08-27 14:18:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:12,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:12,392 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:12,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:12,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:12,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1657743362, now seen corresponding path program 1 times [2021-08-27 14:18:12,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:12,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209130792] [2021-08-27 14:18:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:12,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:12,402 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:12,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:12,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:12,407 INFO L82 PathProgramCache]: Analyzing trace with hash -967181888, now seen corresponding path program 1 times [2021-08-27 14:18:12,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:12,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598107336] [2021-08-27 14:18:12,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:12,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:12,414 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:12,422 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:12,857 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:18:12,859 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:18:12,859 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:18:12,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:18:12,859 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:18:12,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:12,859 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:18:12,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:18:12,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration5_Lasso [2021-08-27 14:18:12,860 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:18:12,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:18:12,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:12,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:12,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:13,534 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:18:13,537 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:18:13,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:13,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:13,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:13,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 14:18:13,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:13,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:13,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:13,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:13,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:13,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:13,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:13,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:13,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:13,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-27 14:18:13,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:13,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:13,576 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:13,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:13,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 14:18:13,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:13,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:13,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:13,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:13,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:13,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:13,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:13,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:13,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:13,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:13,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:13,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:13,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 14:18:13,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:13,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:13,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:13,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:13,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:13,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:13,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:13,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:13,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:13,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:13,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:13,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:13,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 14:18:13,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:13,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:13,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:13,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:13,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:13,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:13,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:13,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:13,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:13,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:13,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:13,719 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:13,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 14:18:13,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:13,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:13,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:13,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:13,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:13,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:13,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:13,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:13,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:13,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:13,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:13,757 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:13,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 14:18:13,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:13,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:13,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:13,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:13,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:13,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:13,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:13,808 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:18:13,848 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-08-27 14:18:13,849 INFO L444 ModelExtractionUtils]: 8 out of 28 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-08-27 14:18:13,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:13,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:13,865 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:13,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 14:18:13,925 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:18:13,953 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:18:13,953 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:18:13,954 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1 Supporting invariants [] [2021-08-27 14:18:13,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:13,991 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-08-27 14:18:14,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:14,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:18:14,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:14,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 14:18:14,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:14,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2021-08-27 14:18:14,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 14:18:14,125 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-08-27 14:18:14,125 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:14,244 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 53 transitions. Complement of second has 10 states. [2021-08-27 14:18:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-08-27 14:18:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2021-08-27 14:18:14,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 8 letters. [2021-08-27 14:18:14,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:14,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 10 letters. Loop has 8 letters. [2021-08-27 14:18:14,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:14,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 16 letters. [2021-08-27 14:18:14,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:14,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 53 transitions. [2021-08-27 14:18:14,248 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-08-27 14:18:14,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 38 states and 51 transitions. [2021-08-27 14:18:14,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-08-27 14:18:14,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-08-27 14:18:14,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2021-08-27 14:18:14,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:18:14,249 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2021-08-27 14:18:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2021-08-27 14:18:14,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2021-08-27 14:18:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:14,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-08-27 14:18:14,251 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-08-27 14:18:14,251 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-08-27 14:18:14,251 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 14:18:14,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-08-27 14:18:14,252 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-08-27 14:18:14,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:14,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:14,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 14:18:14,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1, 1, 1, 1, 1] [2021-08-27 14:18:14,252 INFO L791 eck$LassoCheckResult]: Stem: 354#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 355#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 373#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 371#L553-1 [2021-08-27 14:18:14,252 INFO L793 eck$LassoCheckResult]: Loop: 371#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 360#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 361#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 356#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 357#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 374#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 383#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 382#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 381#L555-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 368#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 371#L553-1 [2021-08-27 14:18:14,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:14,253 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-08-27 14:18:14,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:14,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969662874] [2021-08-27 14:18:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:14,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:14,260 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:14,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:14,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:14,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:14,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1479493138, now seen corresponding path program 2 times [2021-08-27 14:18:14,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:14,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105427391] [2021-08-27 14:18:14,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:14,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:14,279 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:14,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:14,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:14,286 INFO L82 PathProgramCache]: Analyzing trace with hash 376307409, now seen corresponding path program 1 times [2021-08-27 14:18:14,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:14,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82078864] [2021-08-27 14:18:14,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:14,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:14,293 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:14,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:14,875 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:18:14,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:18:14,876 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:18:14,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:18:14,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:18:14,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:14,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:18:14,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:18:14,876 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration6_Lasso [2021-08-27 14:18:14,876 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:18:14,876 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:18:14,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:14,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:14,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:14,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:14,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:14,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:15,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:16,076 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:18:16,077 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:18:16,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:16,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:16,078 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:16,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 14:18:16,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:16,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:16,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:16,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:16,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:16,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:16,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:16,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:16,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:16,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:16,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:16,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:16,121 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:16,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 14:18:16,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:16,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:16,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:16,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:16,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:16,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:16,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:16,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:16,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:16,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:16,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:16,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:16,165 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:16,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 14:18:16,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:16,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:16,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:16,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:16,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:16,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:16,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:16,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:16,194 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:16,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:16,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:16,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:16,213 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:16,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 14:18:16,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:16,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:16,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:16,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:16,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:16,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:16,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:16,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:16,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:16,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:16,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:16,266 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:16,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 14:18:16,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:16,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:16,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:16,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:16,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:16,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:16,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:16,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:16,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:16,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:16,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:16,320 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:16,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 14:18:16,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:16,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:16,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:16,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:16,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:16,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:16,345 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:16,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:16,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:16,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:16,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:16,384 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:16,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 14:18:16,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:16,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:16,393 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 14:18:16,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:16,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:16,417 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 14:18:16,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:16,448 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:18:16,484 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-08-27 14:18:16,484 INFO L444 ModelExtractionUtils]: 24 out of 34 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-08-27 14:18:16,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:16,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:16,485 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:16,512 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:18:16,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 14:18:16,537 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:18:16,537 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:18:16,537 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_2 Supporting invariants [] [2021-08-27 14:18:16,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:16,579 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-08-27 14:18:16,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:16,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:18:16,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:16,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:16,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 14:18:16,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:16,708 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 14:18:16,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2021-08-27 14:18:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 14:18:16,790 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-08-27 14:18:16,790 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:16,878 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 83 transitions. Complement of second has 12 states. [2021-08-27 14:18:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-08-27 14:18:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:16,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2021-08-27 14:18:16,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 3 letters. Loop has 10 letters. [2021-08-27 14:18:16,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:16,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 13 letters. Loop has 10 letters. [2021-08-27 14:18:16,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:16,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 3 letters. Loop has 20 letters. [2021-08-27 14:18:16,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:16,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 83 transitions. [2021-08-27 14:18:16,882 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 14:18:16,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 50 states and 70 transitions. [2021-08-27 14:18:16,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-08-27 14:18:16,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-08-27 14:18:16,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 70 transitions. [2021-08-27 14:18:16,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:18:16,883 INFO L681 BuchiCegarLoop]: Abstraction has 50 states and 70 transitions. [2021-08-27 14:18:16,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 70 transitions. [2021-08-27 14:18:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2021-08-27 14:18:16,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 48 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2021-08-27 14:18:16,885 INFO L704 BuchiCegarLoop]: Abstraction has 49 states and 69 transitions. [2021-08-27 14:18:16,886 INFO L587 BuchiCegarLoop]: Abstraction has 49 states and 69 transitions. [2021-08-27 14:18:16,886 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-27 14:18:16,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 69 transitions. [2021-08-27 14:18:16,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 14:18:16,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:16,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:16,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:18:16,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 14:18:16,887 INFO L791 eck$LassoCheckResult]: Stem: 565#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 566#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 582#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 579#L553-1 assume !test_fun_#t~short6; 580#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 585#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 586#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 613#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 611#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 568#L555-1 [2021-08-27 14:18:16,887 INFO L793 eck$LassoCheckResult]: Loop: 568#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 567#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 568#L555-1 [2021-08-27 14:18:16,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:16,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1272523114, now seen corresponding path program 1 times [2021-08-27 14:18:16,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:16,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109847372] [2021-08-27 14:18:16,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:16,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:16,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 14:18:16,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:16,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109847372] [2021-08-27 14:18:16,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109847372] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:18:16,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:18:16,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 14:18:16,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854872355] [2021-08-27 14:18:16,915 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:18:16,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:16,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1948, now seen corresponding path program 1 times [2021-08-27 14:18:16,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:16,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134339714] [2021-08-27 14:18:16,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:16,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:16,922 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:16,925 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:16,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:16,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 14:18:16,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 14:18:16,955 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:16,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:16,961 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2021-08-27 14:18:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 14:18:16,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 69 transitions. [2021-08-27 14:18:16,962 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 14:18:16,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 49 states and 63 transitions. [2021-08-27 14:18:16,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-08-27 14:18:16,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-08-27 14:18:16,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 63 transitions. [2021-08-27 14:18:16,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:18:16,963 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2021-08-27 14:18:16,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 63 transitions. [2021-08-27 14:18:16,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-08-27 14:18:16,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 48 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2021-08-27 14:18:16,965 INFO L704 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2021-08-27 14:18:16,965 INFO L587 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2021-08-27 14:18:16,965 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-27 14:18:16,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 63 transitions. [2021-08-27 14:18:16,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 14:18:16,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:16,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:16,966 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:18:16,966 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 14:18:16,966 INFO L791 eck$LassoCheckResult]: Stem: 672#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 673#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 692#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 689#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 678#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 679#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 707#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 704#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 699#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 675#L555-1 [2021-08-27 14:18:16,966 INFO L793 eck$LassoCheckResult]: Loop: 675#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 674#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 675#L555-1 [2021-08-27 14:18:16,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:16,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1215264812, now seen corresponding path program 1 times [2021-08-27 14:18:16,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:16,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653142203] [2021-08-27 14:18:16,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:16,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:16,972 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:16,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:16,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:16,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1948, now seen corresponding path program 2 times [2021-08-27 14:18:16,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:16,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696090242] [2021-08-27 14:18:16,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:16,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:16,982 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:16,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:16,983 INFO L82 PathProgramCache]: Analyzing trace with hash -361619193, now seen corresponding path program 2 times [2021-08-27 14:18:16,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:16,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456234706] [2021-08-27 14:18:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:16,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:16,995 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:17,001 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:17,493 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:18:17,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:18:17,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:18:17,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:18:17,494 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:18:17,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:17,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:18:17,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:18:17,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration8_Lasso [2021-08-27 14:18:17,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:18:17,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:18:17,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:17,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:18,091 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:18:18,091 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:18:18,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,095 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:18,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:18,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:18,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 14:18:18,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,145 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 14:18:18,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:18,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:18,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:18,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,189 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 14:18:18,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:18,206 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:18,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,227 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 14:18:18,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:18,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:18,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:18,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,313 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 14:18:18,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:18,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:18,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:18,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,348 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-27 14:18:18,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:18,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:18,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,421 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-27 14:18:18,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:18,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:18,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-08-27 14:18:18,495 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,495 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-27 14:18:18,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:18,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:18,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,549 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:18,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:18,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 14:18:18,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:18,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,614 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 14:18:18,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:18,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:18,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:18,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:18,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:18,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:18,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:18,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:18:18,698 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-08-27 14:18:18,698 INFO L444 ModelExtractionUtils]: 21 out of 31 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-08-27 14:18:18,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:18,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:18,699 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:18,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-27 14:18:18,707 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:18:18,760 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 14:18:18,760 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:18:18,760 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_3 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_3 - 1*ULTIMATE.start_test_fun_#t~mem9 >= 0] [2021-08-27 14:18:18,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:18,801 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-08-27 14:18:18,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:18,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 14:18:18,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:18,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 14:18:18,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:18,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-08-27 14:18:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:18,902 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 14:18:18,902 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 21 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:18,948 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 21. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 102 states and 128 transitions. Complement of second has 6 states. [2021-08-27 14:18:18,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 14:18:18,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-08-27 14:18:18,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2021-08-27 14:18:18,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:18,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2021-08-27 14:18:18,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:18,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2021-08-27 14:18:18,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:18,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 128 transitions. [2021-08-27 14:18:18,951 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-08-27 14:18:18,952 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 94 states and 119 transitions. [2021-08-27 14:18:18,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-08-27 14:18:18,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-08-27 14:18:18,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 119 transitions. [2021-08-27 14:18:18,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:18:18,952 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 119 transitions. [2021-08-27 14:18:18,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 119 transitions. [2021-08-27 14:18:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2021-08-27 14:18:18,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.2875) internal successors, (103), 79 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2021-08-27 14:18:18,955 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 103 transitions. [2021-08-27 14:18:18,955 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 103 transitions. [2021-08-27 14:18:18,956 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-27 14:18:18,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 103 transitions. [2021-08-27 14:18:18,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 14:18:18,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:18,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:18,956 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:18:18,957 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 14:18:18,957 INFO L791 eck$LassoCheckResult]: Stem: 931#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 932#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 949#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 955#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 937#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 938#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 941#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 942#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 984#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 940#L559-1 [2021-08-27 14:18:18,957 INFO L793 eck$LassoCheckResult]: Loop: 940#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 939#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 940#L559-1 [2021-08-27 14:18:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:18,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1215726572, now seen corresponding path program 1 times [2021-08-27 14:18:18,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:18,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667437707] [2021-08-27 14:18:18,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:18,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:18,964 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:18,969 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:18,970 INFO L82 PathProgramCache]: Analyzing trace with hash 2428, now seen corresponding path program 1 times [2021-08-27 14:18:18,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:18,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302530339] [2021-08-27 14:18:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:18,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:18,977 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:18,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:18,979 INFO L82 PathProgramCache]: Analyzing trace with hash 82132647, now seen corresponding path program 2 times [2021-08-27 14:18:18,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:18,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463688551] [2021-08-27 14:18:18,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:18,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:19,005 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:19,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:19,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:20,012 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:18:20,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:18:20,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:18:20,013 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:18:20,013 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:18:20,013 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:20,013 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:18:20,013 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:18:20,013 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration9_Lasso [2021-08-27 14:18:20,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:18:20,013 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:18:20,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:20,935 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:18:20,935 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:18:20,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:20,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:20,941 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:20,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:20,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-27 14:18:20,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:20,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:20,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:20,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:20,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:20,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:20,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:20,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:20,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:20,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:20,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:20,975 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:20,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-27 14:18:20,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:20,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:20,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:20,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:20,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:20,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:20,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:20,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:20,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,007 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-27 14:18:21,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,041 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-27 14:18:21,043 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:21,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:21,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,093 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-27 14:18:21,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,197 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-27 14:18:21,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,281 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,300 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-27 14:18:21,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-08-27 14:18:21,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,437 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-27 14:18:21,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:21,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:21,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,579 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-27 14:18:21,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,620 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-27 14:18:21,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,667 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-27 14:18:21,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,705 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-27 14:18:21,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-08-27 14:18:21,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,757 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-08-27 14:18:21,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:21,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:21,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,839 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-27 14:18:21,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:21,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:21,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:21,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:21,940 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:21,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-08-27 14:18:21,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:21,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:21,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:21,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:21,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:21,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:21,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:21,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:21,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:22,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-08-27 14:18:22,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,040 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:22,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-08-27 14:18:22,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:22,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:22,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:22,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:22,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:22,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:22,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:22,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:22,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:22,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,074 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-08-27 14:18:22,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:22,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:22,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:22,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:22,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:22,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:22,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:22,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:22,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:22,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,181 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-08-27 14:18:22,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:22,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:22,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:22,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:22,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:22,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:22,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:22,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:22,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:22,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,235 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-08-27 14:18:22,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:22,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:22,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:22,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:22,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:22,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:22,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:22,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:22,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-08-27 14:18:22,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,276 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:22,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:22,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:22,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:22,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:22,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:22,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:22,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-08-27 14:18:22,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:22,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:22,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,325 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-08-27 14:18:22,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:22,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:22,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:22,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:22,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:22,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:22,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:22,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:22,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:22,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,389 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-08-27 14:18:22,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:22,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:22,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:22,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:22,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:22,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:22,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:22,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:22,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:22,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,473 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-08-27 14:18:22,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:18:22,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:22,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:22,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:22,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:22,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:22,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:22,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:18:22,540 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-08-27 14:18:22,541 INFO L444 ModelExtractionUtils]: 24 out of 31 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-08-27 14:18:22,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:22,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:22,542 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:18:22,545 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:18:22,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-08-27 14:18:22,564 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 14:18:22,565 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:18:22,565 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_#t~mem11) = 1*ULTIMATE.start_test_fun_#t~mem11 Supporting invariants [1*ULTIMATE.start_test_fun_#t~mem11 - 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_4 >= 0] [2021-08-27 14:18:22,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:22,600 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-08-27 14:18:22,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:22,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 14:18:22,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:22,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 14:18:22,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:22,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-08-27 14:18:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:22,704 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 14:18:22,704 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 103 transitions. cyclomatic complexity: 35 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:22,725 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 103 transitions. cyclomatic complexity: 35. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 163 states and 210 transitions. Complement of second has 5 states. [2021-08-27 14:18:22,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:18:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:22,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2021-08-27 14:18:22,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 2 letters. [2021-08-27 14:18:22,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:22,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2021-08-27 14:18:22,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:22,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2021-08-27 14:18:22,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:18:22,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 210 transitions. [2021-08-27 14:18:22,730 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-08-27 14:18:22,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 151 states and 194 transitions. [2021-08-27 14:18:22,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-08-27 14:18:22,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-08-27 14:18:22,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 194 transitions. [2021-08-27 14:18:22,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:18:22,731 INFO L681 BuchiCegarLoop]: Abstraction has 151 states and 194 transitions. [2021-08-27 14:18:22,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 194 transitions. [2021-08-27 14:18:22,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 110. [2021-08-27 14:18:22,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 109 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 141 transitions. [2021-08-27 14:18:22,735 INFO L704 BuchiCegarLoop]: Abstraction has 110 states and 141 transitions. [2021-08-27 14:18:22,735 INFO L587 BuchiCegarLoop]: Abstraction has 110 states and 141 transitions. [2021-08-27 14:18:22,735 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-27 14:18:22,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 141 transitions. [2021-08-27 14:18:22,736 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 14:18:22,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:22,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:22,736 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 2, 1, 1, 1] [2021-08-27 14:18:22,736 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 14:18:22,736 INFO L791 eck$LassoCheckResult]: Stem: 1269#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1270#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1283#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 1286#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 1341#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1340#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 1339#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1338#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 1298#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1291#L559-1 assume !(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11; 1297#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 1296#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 1295#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1294#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 1293#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1292#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 1290#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1278#L559-1 [2021-08-27 14:18:22,736 INFO L793 eck$LassoCheckResult]: Loop: 1278#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 1277#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1278#L559-1 [2021-08-27 14:18:22,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:22,737 INFO L82 PathProgramCache]: Analyzing trace with hash -2055714993, now seen corresponding path program 2 times [2021-08-27 14:18:22,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:22,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708971420] [2021-08-27 14:18:22,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:22,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:22,762 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 14:18:22,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:22,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708971420] [2021-08-27 14:18:22,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708971420] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:18:22,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:18:22,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 14:18:22,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377976964] [2021-08-27 14:18:22,763 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:18:22,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:22,763 INFO L82 PathProgramCache]: Analyzing trace with hash 2428, now seen corresponding path program 2 times [2021-08-27 14:18:22,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:22,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411219687] [2021-08-27 14:18:22,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:22,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:22,766 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:22,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:22,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:22,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 14:18:22,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 14:18:22,804 INFO L87 Difference]: Start difference. First operand 110 states and 141 transitions. cyclomatic complexity: 47 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:22,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:22,833 INFO L93 Difference]: Finished difference Result 88 states and 105 transitions. [2021-08-27 14:18:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 14:18:22,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 105 transitions. [2021-08-27 14:18:22,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 14:18:22,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 24 states and 27 transitions. [2021-08-27 14:18:22,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 14:18:22,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-08-27 14:18:22,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2021-08-27 14:18:22,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:18:22,834 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-08-27 14:18:22,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2021-08-27 14:18:22,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-08-27 14:18:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:22,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-08-27 14:18:22,836 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-08-27 14:18:22,836 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-08-27 14:18:22,836 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-08-27 14:18:22,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2021-08-27 14:18:22,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 14:18:22,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:22,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:22,836 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 3, 2, 2, 2, 2, 1, 1, 1] [2021-08-27 14:18:22,837 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 14:18:22,837 INFO L791 eck$LassoCheckResult]: Stem: 1477#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1478#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1485#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 1486#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 1483#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1484#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 1481#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1482#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 1489#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1498#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 1497#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1491#L555-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 1490#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 1487#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 1488#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem4;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1496#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 1495#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1494#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 1492#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1480#L555-1 [2021-08-27 14:18:22,837 INFO L793 eck$LassoCheckResult]: Loop: 1480#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 1479#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1480#L555-1 [2021-08-27 14:18:22,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:22,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2121929575, now seen corresponding path program 2 times [2021-08-27 14:18:22,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:22,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175696143] [2021-08-27 14:18:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:22,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-27 14:18:22,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:22,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175696143] [2021-08-27 14:18:22,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175696143] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:18:22,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:18:22,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 14:18:22,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703073098] [2021-08-27 14:18:22,864 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:18:22,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:22,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1948, now seen corresponding path program 3 times [2021-08-27 14:18:22,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:22,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827397840] [2021-08-27 14:18:22,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:22,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:22,870 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:22,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:22,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:22,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 14:18:22,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 14:18:22,901 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:18:22,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:22,928 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-08-27 14:18:22,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 14:18:22,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2021-08-27 14:18:22,928 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:18:22,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-08-27 14:18:22,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:18:22,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:18:22,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:18:22,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:18:22,928 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:18:22,928 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:18:22,929 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:18:22,929 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-08-27 14:18:22,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:18:22,929 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:18:22,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:18:22,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:18:22 BoogieIcfgContainer [2021-08-27 14:18:22,932 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:18:22,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:18:22,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:18:22,933 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:18:22,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:18:11" (3/4) ... [2021-08-27 14:18:22,935 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:18:22,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:18:22,936 INFO L168 Benchmark]: Toolchain (without parser) took 12365.31 ms. Allocated memory was 67.1 MB in the beginning and 249.6 MB in the end (delta: 182.5 MB). Free memory was 46.5 MB in the beginning and 135.0 MB in the end (delta: -88.5 MB). Peak memory consumption was 93.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:22,936 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory was 48.1 MB in the beginning and 48.1 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:18:22,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.47 ms. Allocated memory is still 67.1 MB. Free memory was 46.3 MB in the beginning and 45.4 MB in the end (delta: 897.1 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:22,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.28 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 43.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:22,937 INFO L168 Benchmark]: Boogie Preprocessor took 35.77 ms. Allocated memory is still 67.1 MB. Free memory was 43.4 MB in the beginning and 42.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:18:22,937 INFO L168 Benchmark]: RCFGBuilder took 317.80 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 44.2 MB in the end (delta: -2.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:22,937 INFO L168 Benchmark]: BuchiAutomizer took 11700.76 ms. Allocated memory was 67.1 MB in the beginning and 249.6 MB in the end (delta: 182.5 MB). Free memory was 44.0 MB in the beginning and 135.0 MB in the end (delta: -91.0 MB). Peak memory consumption was 90.7 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:22,938 INFO L168 Benchmark]: Witness Printer took 2.61 ms. Allocated memory is still 249.6 MB. Free memory is still 135.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:18:22,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory was 48.1 MB in the beginning and 48.1 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.47 ms. Allocated memory is still 67.1 MB. Free memory was 46.3 MB in the beginning and 45.4 MB in the end (delta: 897.1 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.28 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 43.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.77 ms. Allocated memory is still 67.1 MB. Free memory was 43.4 MB in the beginning and 42.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 317.80 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 44.2 MB in the end (delta: -2.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11700.76 ms. Allocated memory was 67.1 MB in the beginning and 249.6 MB in the end (delta: 182.5 MB). Free memory was 44.0 MB in the beginning and 135.0 MB in the end (delta: -91.0 MB). Peak memory consumption was 90.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.61 ms. Allocated memory is still 249.6 MB. Free memory is still 135.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (7 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[y_ref][y_ref] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 7 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 4 locations. One deterministic module has affine ranking function org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@71dd0cf0 and consists of 3 locations. 7 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.6s and 12 iterations. TraceHistogramMax:5. Analysis of lassos took 10.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 6. Automata minimization 28.8ms AutomataMinimizationTime, 10 MinimizatonAttempts, 70 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 110 states and ocurred in iteration 9. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 8/8 HoareTripleCheckerStatistics: 115 SDtfs, 88 SDslu, 95 SDs, 0 SdLazy, 242 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 202.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU3 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital230 mio100 ax107 hnf100 lsp90 ukn69 mio100 lsp36 div100 bol103 ite100 ukn100 eq176 hnf89 smp94 dnf138 smp89 tf100 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 153ms VariablesStem: 10 VariablesLoop: 7 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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! [2021-08-27 14:18:22,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-08-27 14:18:23,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-27 14:18:23,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...