./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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/HarrisLalNoriRajamani-2010SAS-Fig1-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 7d44dc9ee297680f321b2cf4dcd79f3ba6ced2470ed6439fc6dd5eb0285efc9c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:26:31,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:26:31,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:26:31,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:26:31,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:26:31,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:26:31,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:26:31,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:26:31,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:26:31,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:26:31,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:26:31,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:26:31,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:26:31,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:26:31,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:26:31,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:26:31,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:26:31,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:26:31,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:26:31,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:26:31,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:26:31,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:26:31,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:26:31,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:26:31,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:26:31,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:26:31,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:26:31,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:26:31,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:26:31,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:26:31,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:26:31,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:26:31,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:26:31,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:26:31,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:26:31,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:26:31,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:26:31,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:26:31,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:26:31,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:26:31,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:26:31,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-16 09:26:31,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:26:31,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:26:31,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:26:31,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:26:31,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:26:31,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:26:31,550 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:26:31,550 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:26:31,550 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:26:31,550 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:26:31,551 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:26:31,551 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:26:31,551 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:26:31,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:26:31,551 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:26:31,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:26:31,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:26:31,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:26:31,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:26:31,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:26:31,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:26:31,552 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:26:31,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:26:31,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:26:31,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:26:31,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:26:31,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:26:31,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:26:31,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:26:31,556 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:26:31,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d44dc9ee297680f321b2cf4dcd79f3ba6ced2470ed6439fc6dd5eb0285efc9c [2021-12-16 09:26:31,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:26:31,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:26:31,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:26:31,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:26:31,753 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:26:31,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i [2021-12-16 09:26:31,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d089d5d8/f07ee95da3284a56897bb62933e7422e/FLAGb5349d136 [2021-12-16 09:26:32,164 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:26:32,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i [2021-12-16 09:26:32,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d089d5d8/f07ee95da3284a56897bb62933e7422e/FLAGb5349d136 [2021-12-16 09:26:32,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d089d5d8/f07ee95da3284a56897bb62933e7422e [2021-12-16 09:26:32,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:26:32,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:26:32,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:26:32,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:26:32,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:26:32,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aee9ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32, skipping insertion in model container [2021-12-16 09:26:32,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:26:32,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:26:32,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:26:32,833 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:26:32,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:26:32,889 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:26:32,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32 WrapperNode [2021-12-16 09:26:32,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:26:32,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:26:32,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:26:32,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:26:32,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,941 INFO L137 Inliner]: procedures = 111, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 190 [2021-12-16 09:26:32,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:26:32,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:26:32,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:26:32,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:26:32,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:26:32,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:26:32,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:26:32,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:26:32,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (1/1) ... [2021-12-16 09:26:32,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,011 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) [2021-12-16 09:26:33,035 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 [2021-12-16 09:26:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 09:26:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 09:26:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 09:26:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 09:26:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:26:33,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:26:33,130 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:26:33,132 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:26:33,446 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:26:33,450 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:26:33,450 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-16 09:26:33,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:26:33 BoogieIcfgContainer [2021-12-16 09:26:33,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:26:33,460 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:26:33,460 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:26:33,462 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:26:33,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:33,463 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:26:32" (1/3) ... [2021-12-16 09:26:33,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5127ae08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:26:33, skipping insertion in model container [2021-12-16 09:26:33,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:33,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:32" (2/3) ... [2021-12-16 09:26:33,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5127ae08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:26:33, skipping insertion in model container [2021-12-16 09:26:33,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:33,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:26:33" (3/3) ... [2021-12-16 09:26:33,465 INFO L388 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i [2021-12-16 09:26:33,496 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:26:33,496 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:26:33,497 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:26:33,497 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:26:33,497 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:26:33,497 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:26:33,497 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:26:33,497 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:26:33,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 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) [2021-12-16 09:26:33,522 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2021-12-16 09:26:33,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:33,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:33,526 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-16 09:26:33,526 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:26:33,526 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:26:33,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 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) [2021-12-16 09:26:33,530 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2021-12-16 09:26:33,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:33,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:33,530 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-16 09:26:33,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:26:33,535 INFO L791 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet21#1; 10#L578true assume 0 != main_#t~nondet21#1;havoc main_#t~nondet21#1;assume { :begin_inline_f } true;f_#in~d#1 := 1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~malloc6#1.base, f_#t~malloc6#1.offset, f_#t~mem7#1, f_#t~mem10#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~nondet14#1, f_#t~mem15#1, f_#t~mem16#1, f_#t~nondet17#1, f_#t~mem18#1, f_#t~mem19#1, f_#t~mem20#1, f_#t~mem11#1, f_#t~mem12#1, f_#t~short13#1, f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, f_~x~0#1.base, f_~x~0#1.offset, f_~y~0#1.base, f_~y~0#1.offset, f_~k~0#1.base, f_~k~0#1.offset, f_~z~0#1.base, f_~z~0#1.offset;f_~d#1 := f_#in~d#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~d_ref~0#1.base, f_~d_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~x~0#1.base, f_~x~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~y~0#1.base, f_~y~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~k~0#1.base, f_~k~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call f_#t~malloc6#1.base, f_#t~malloc6#1.offset := #Ultimate.allocOnStack(4);f_~z~0#1.base, f_~z~0#1.offset := f_#t~malloc6#1.base, f_#t~malloc6#1.offset;call write~int(f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(1, f_~x~0#1.base, f_~x~0#1.offset, 4);call write~int(1, f_~y~0#1.base, f_~y~0#1.offset, 4);call write~int(1, f_~k~0#1.base, f_~k~0#1.offset, 4);call write~int(1, f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 22#L558true assume !(f_#t~mem7#1 > 1073741823);havoc f_#t~mem7#1; 15#L562-2true [2021-12-16 09:26:33,537 INFO L793 eck$LassoCheckResult]: Loop: 15#L562-2true call f_#t~mem8#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem9#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 12#L562true assume !!(f_#t~mem8#1 < f_#t~mem9#1);havoc f_#t~mem8#1;havoc f_#t~mem9#1;call f_#t~mem10#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call write~int(2 * f_#t~mem10#1, f_~z~0#1.base, f_~z~0#1.offset, 4);havoc f_#t~mem10#1; 15#L562-2true [2021-12-16 09:26:33,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:33,545 INFO L85 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2021-12-16 09:26:33,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:33,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538634739] [2021-12-16 09:26:33,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:33,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:33,681 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:33,719 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:33,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:33,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1446, now seen corresponding path program 1 times [2021-12-16 09:26:33,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:33,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758079915] [2021-12-16 09:26:33,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:33,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:33,736 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:33,743 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash 889509773, now seen corresponding path program 1 times [2021-12-16 09:26:33,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:33,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414538053] [2021-12-16 09:26:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:33,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:33,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:33,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414538053] [2021-12-16 09:26:33,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414538053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:26:33,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:26:33,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:26:33,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400135173] [2021-12-16 09:26:33,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:26:34,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:34,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:26:34,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:26:34,044 INFO L87 Difference]: Start difference. First operand has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 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 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) [2021-12-16 09:26:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:34,131 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2021-12-16 09:26:34,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 09:26:34,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 54 transitions. [2021-12-16 09:26:34,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:34,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 29 states and 38 transitions. [2021-12-16 09:26:34,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-12-16 09:26:34,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-12-16 09:26:34,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2021-12-16 09:26:34,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:26:34,143 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-12-16 09:26:34,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2021-12-16 09:26:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2021-12-16 09:26:34,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 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) [2021-12-16 09:26:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-12-16 09:26:34,160 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-16 09:26:34,161 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-16 09:26:34,161 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:26:34,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2021-12-16 09:26:34,161 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:34,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:34,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:34,162 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:34,162 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-16 09:26:34,162 INFO L791 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 89#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet21#1; 93#L578 assume 0 != main_#t~nondet21#1;havoc main_#t~nondet21#1;assume { :begin_inline_f } true;f_#in~d#1 := 1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~malloc6#1.base, f_#t~malloc6#1.offset, f_#t~mem7#1, f_#t~mem10#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~nondet14#1, f_#t~mem15#1, f_#t~mem16#1, f_#t~nondet17#1, f_#t~mem18#1, f_#t~mem19#1, f_#t~mem20#1, f_#t~mem11#1, f_#t~mem12#1, f_#t~short13#1, f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, f_~x~0#1.base, f_~x~0#1.offset, f_~y~0#1.base, f_~y~0#1.offset, f_~k~0#1.base, f_~k~0#1.offset, f_~z~0#1.base, f_~z~0#1.offset;f_~d#1 := f_#in~d#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~d_ref~0#1.base, f_~d_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~x~0#1.base, f_~x~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~y~0#1.base, f_~y~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~k~0#1.base, f_~k~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call f_#t~malloc6#1.base, f_#t~malloc6#1.offset := #Ultimate.allocOnStack(4);f_~z~0#1.base, f_~z~0#1.offset := f_#t~malloc6#1.base, f_#t~malloc6#1.offset;call write~int(f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(1, f_~x~0#1.base, f_~x~0#1.offset, 4);call write~int(1, f_~y~0#1.base, f_~y~0#1.offset, 4);call write~int(1, f_~k~0#1.base, f_~k~0#1.offset, 4);call write~int(1, f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 97#L558 assume !(f_#t~mem7#1 > 1073741823);havoc f_#t~mem7#1; 98#L562-2 call f_#t~mem8#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem9#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 102#L562 assume !(f_#t~mem8#1 < f_#t~mem9#1);havoc f_#t~mem8#1;havoc f_#t~mem9#1; 101#L567-2 [2021-12-16 09:26:34,162 INFO L793 eck$LassoCheckResult]: Loop: 101#L567-2 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 94#L566 assume !f_#t~short13#1; 95#L566-2 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 99#L567 assume !(0 != f_#t~nondet14#1);havoc f_#t~nondet14#1;call f_#t~mem19#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);call f_#t~mem20#1 := read~int(f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(f_#t~mem19#1 - f_#t~mem20#1, f_~y~0#1.base, f_~y~0#1.offset, 4);havoc f_#t~mem19#1;havoc f_#t~mem20#1; 101#L567-2 [2021-12-16 09:26:34,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:34,163 INFO L85 PathProgramCache]: Analyzing trace with hash 889509771, now seen corresponding path program 1 times [2021-12-16 09:26:34,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:34,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802990526] [2021-12-16 09:26:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:34,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:34,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:34,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1759853, now seen corresponding path program 1 times [2021-12-16 09:26:34,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:34,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562873818] [2021-12-16 09:26:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:34,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:34,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:34,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562873818] [2021-12-16 09:26:34,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562873818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:26:34,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:26:34,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:26:34,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206450219] [2021-12-16 09:26:34,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:26:34,241 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 09:26:34,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:34,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:26:34,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:26:34,242 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-12-16 09:26:34,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:34,257 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-12-16 09:26:34,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:26:34,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2021-12-16 09:26:34,258 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:34,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 19 states and 22 transitions. [2021-12-16 09:26:34,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-12-16 09:26:34,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-12-16 09:26:34,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2021-12-16 09:26:34,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:26:34,260 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-12-16 09:26:34,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2021-12-16 09:26:34,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-16 09:26:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 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) [2021-12-16 09:26:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-12-16 09:26:34,261 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-12-16 09:26:34,261 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-12-16 09:26:34,261 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 09:26:34,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions. [2021-12-16 09:26:34,262 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:34,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:34,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:34,283 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:34,284 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-16 09:26:34,284 INFO L791 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 133#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet21#1; 138#L578 assume 0 != main_#t~nondet21#1;havoc main_#t~nondet21#1;assume { :begin_inline_f } true;f_#in~d#1 := 1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~malloc6#1.base, f_#t~malloc6#1.offset, f_#t~mem7#1, f_#t~mem10#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~nondet14#1, f_#t~mem15#1, f_#t~mem16#1, f_#t~nondet17#1, f_#t~mem18#1, f_#t~mem19#1, f_#t~mem20#1, f_#t~mem11#1, f_#t~mem12#1, f_#t~short13#1, f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, f_~x~0#1.base, f_~x~0#1.offset, f_~y~0#1.base, f_~y~0#1.offset, f_~k~0#1.base, f_~k~0#1.offset, f_~z~0#1.base, f_~z~0#1.offset;f_~d#1 := f_#in~d#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~d_ref~0#1.base, f_~d_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~x~0#1.base, f_~x~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~y~0#1.base, f_~y~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~k~0#1.base, f_~k~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call f_#t~malloc6#1.base, f_#t~malloc6#1.offset := #Ultimate.allocOnStack(4);f_~z~0#1.base, f_~z~0#1.offset := f_#t~malloc6#1.base, f_#t~malloc6#1.offset;call write~int(f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(1, f_~x~0#1.base, f_~x~0#1.offset, 4);call write~int(1, f_~y~0#1.base, f_~y~0#1.offset, 4);call write~int(1, f_~k~0#1.base, f_~k~0#1.offset, 4);call write~int(1, f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 143#L558 assume !(f_#t~mem7#1 > 1073741823);havoc f_#t~mem7#1; 144#L562-2 call f_#t~mem8#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem9#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 148#L562 assume !(f_#t~mem8#1 < f_#t~mem9#1);havoc f_#t~mem8#1;havoc f_#t~mem9#1; 147#L567-2 [2021-12-16 09:26:34,286 INFO L793 eck$LassoCheckResult]: Loop: 147#L567-2 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 140#L566 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 141#L566-2 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 145#L567 assume !(0 != f_#t~nondet14#1);havoc f_#t~nondet14#1;call f_#t~mem19#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);call f_#t~mem20#1 := read~int(f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(f_#t~mem19#1 - f_#t~mem20#1, f_~y~0#1.base, f_~y~0#1.offset, 4);havoc f_#t~mem19#1;havoc f_#t~mem20#1; 147#L567-2 [2021-12-16 09:26:34,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash 889509771, now seen corresponding path program 2 times [2021-12-16 09:26:34,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:34,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140848387] [2021-12-16 09:26:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:34,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,310 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,325 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:34,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:34,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1757931, now seen corresponding path program 1 times [2021-12-16 09:26:34,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:34,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352821124] [2021-12-16 09:26:34,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:34,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,332 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,337 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:34,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:34,338 INFO L85 PathProgramCache]: Analyzing trace with hash -260778635, now seen corresponding path program 1 times [2021-12-16 09:26:34,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:34,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688508509] [2021-12-16 09:26:34,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:34,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,378 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,399 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:36,149 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:26:36,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:26:36,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:26:36,150 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:26:36,150 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:26:36,150 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:36,150 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:26:36,150 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:26:36,151 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i_Iteration3_Lasso [2021-12-16 09:26:36,151 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:26:36,151 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:26:36,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:37,451 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:26:37,454 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:26:37,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,457 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2021-12-16 09:26:37,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-16 09:26:37,459 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 [2021-12-16 09:26:37,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-16 09:26:37,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,501 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) [2021-12-16 09:26:37,504 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 [2021-12-16 09:26:37,504 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 [2021-12-16 09:26:37,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:37,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:37,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,540 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 [2021-12-16 09:26:37,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,541 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) [2021-12-16 09:26:37,542 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 [2021-12-16 09:26:37,544 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 [2021-12-16 09:26:37,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,583 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 [2021-12-16 09:26:37,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,584 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) [2021-12-16 09:26:37,585 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 [2021-12-16 09:26:37,591 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 [2021-12-16 09:26:37,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,629 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 [2021-12-16 09:26:37,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,631 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) [2021-12-16 09:26:37,632 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 [2021-12-16 09:26:37,634 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 [2021-12-16 09:26:37,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-16 09:26:37,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,661 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) [2021-12-16 09:26:37,663 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 [2021-12-16 09:26:37,664 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 [2021-12-16 09:26:37,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,687 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 [2021-12-16 09:26:37,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,688 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) [2021-12-16 09:26:37,689 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 [2021-12-16 09:26:37,691 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 [2021-12-16 09:26:37,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:37,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:37,714 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,731 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 [2021-12-16 09:26:37,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,732 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) [2021-12-16 09:26:37,733 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 [2021-12-16 09:26:37,734 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 [2021-12-16 09:26:37,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,741 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,758 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 [2021-12-16 09:26:37,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,759 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) [2021-12-16 09:26:37,760 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 [2021-12-16 09:26:37,762 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 [2021-12-16 09:26:37,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:37,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:37,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,809 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 [2021-12-16 09:26:37,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,810 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) [2021-12-16 09:26:37,816 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 [2021-12-16 09:26:37,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,827 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 [2021-12-16 09:26:37,842 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 [2021-12-16 09:26:37,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,843 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) [2021-12-16 09:26:37,844 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 [2021-12-16 09:26:37,845 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 [2021-12-16 09:26:37,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,873 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 [2021-12-16 09:26:37,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,879 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) [2021-12-16 09:26:37,880 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 [2021-12-16 09:26:37,881 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 [2021-12-16 09:26:37,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:37,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:37,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,942 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 [2021-12-16 09:26:37,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,943 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) [2021-12-16 09:26:37,944 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 [2021-12-16 09:26:37,945 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 [2021-12-16 09:26:37,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:37,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:37,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:37,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:37,984 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 [2021-12-16 09:26:37,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:37,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:37,985 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) [2021-12-16 09:26:37,986 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 [2021-12-16 09:26:37,988 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 [2021-12-16 09:26:37,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:37,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:37,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:37,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:37,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:37,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,010 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,026 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 [2021-12-16 09:26:38,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,032 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) [2021-12-16 09:26:38,033 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 [2021-12-16 09:26:38,034 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 [2021-12-16 09:26:38,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:38,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:38,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:38,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,075 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 [2021-12-16 09:26:38,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,076 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) [2021-12-16 09:26:38,077 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 [2021-12-16 09:26:38,079 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 [2021-12-16 09:26:38,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:38,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:38,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:38,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,111 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 [2021-12-16 09:26:38,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,113 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) [2021-12-16 09:26:38,114 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 [2021-12-16 09:26:38,116 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 [2021-12-16 09:26:38,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,155 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 [2021-12-16 09:26:38,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,161 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) [2021-12-16 09:26:38,162 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 [2021-12-16 09:26:38,163 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 [2021-12-16 09:26:38,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,180 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,214 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 [2021-12-16 09:26:38,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,215 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) [2021-12-16 09:26:38,216 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 [2021-12-16 09:26:38,217 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 [2021-12-16 09:26:38,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,258 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 [2021-12-16 09:26:38,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,259 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) [2021-12-16 09:26:38,260 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 [2021-12-16 09:26:38,271 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 [2021-12-16 09:26:38,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,311 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 [2021-12-16 09:26:38,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,312 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) [2021-12-16 09:26:38,313 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 [2021-12-16 09:26:38,314 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 [2021-12-16 09:26:38,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,322 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-16 09:26:38,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,355 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) [2021-12-16 09:26:38,356 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 [2021-12-16 09:26:38,358 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 [2021-12-16 09:26:38,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,384 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,417 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 [2021-12-16 09:26:38,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,418 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) [2021-12-16 09:26:38,419 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 [2021-12-16 09:26:38,421 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 [2021-12-16 09:26:38,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:38,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,491 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) [2021-12-16 09:26:38,492 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 [2021-12-16 09:26:38,494 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 [2021-12-16 09:26:38,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,532 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 [2021-12-16 09:26:38,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,533 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) [2021-12-16 09:26:38,534 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 [2021-12-16 09:26:38,535 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 [2021-12-16 09:26:38,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,578 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 [2021-12-16 09:26:38,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,580 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) [2021-12-16 09:26:38,581 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 [2021-12-16 09:26:38,582 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 [2021-12-16 09:26:38,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,621 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 [2021-12-16 09:26:38,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,622 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) [2021-12-16 09:26:38,623 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 [2021-12-16 09:26:38,624 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 [2021-12-16 09:26:38,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:38,664 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 [2021-12-16 09:26:38,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,665 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) [2021-12-16 09:26:38,666 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 [2021-12-16 09:26:38,667 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 [2021-12-16 09:26:38,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:38,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:38,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:38,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:38,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:38,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:38,692 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:26:38,701 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-16 09:26:38,701 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-12-16 09:26:38,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:38,712 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) [2021-12-16 09:26:38,712 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 [2021-12-16 09:26:38,759 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:26:38,787 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-16 09:26:38,787 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:26:38,788 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~y~0#1.base) ULTIMATE.start_f_~y~0#1.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~y~0#1.base) ULTIMATE.start_f_~y~0#1.offset)_1 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_f_~d_ref~0#1.base) ULTIMATE.start_f_~d_ref~0#1.offset)_1 - 1 >= 0] [2021-12-16 09:26:38,807 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 [2021-12-16 09:26:38,960 INFO L297 tatePredicateManager]: 56 out of 59 supporting invariants were superfluous and have been removed [2021-12-16 09:26:38,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:39,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 51 conjunts are in the unsatisfiable core [2021-12-16 09:26:39,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:39,188 INFO L354 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2021-12-16 09:26:39,189 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 2302 treesize of output 1808 [2021-12-16 09:26:39,228 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 [2021-12-16 09:26:39,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:39,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:39,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:39,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:39,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:39,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:39,579 INFO L354 Elim1Store]: treesize reduction 264, result has 41.2 percent of original size [2021-12-16 09:26:39,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1800 treesize of output 1060 [2021-12-16 09:26:39,635 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-16 09:26:39,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2021-12-16 09:26:39,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:39,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:39,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:39,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:40,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2021-12-16 09:26:41,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:41,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:41,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2021-12-16 09:26:41,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2021-12-16 09:26:41,211 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 09:26:41,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 42 [2021-12-16 09:26:41,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:41,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:41,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:41,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:42,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:42,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-12-16 09:26:42,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:42,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-12-16 09:26:42,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:42,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:42,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:42,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:42,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:42,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-12-16 09:26:42,685 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-12-16 09:26:42,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 182 treesize of output 176 [2021-12-16 09:26:43,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:43,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-12-16 09:26:43,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:43,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:43,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:43,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-12-16 09:26:43,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:43,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-12-16 09:26:43,459 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-12-16 09:26:43,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 41 [2021-12-16 09:26:43,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:43,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-12-16 09:26:43,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:43,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:43,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:43,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:26:43,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:43,819 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-16 09:26:43,819 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 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) [2021-12-16 09:26:43,896 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 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 29 states and 34 transitions. Complement of second has 10 states. [2021-12-16 09:26:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-16 09:26:43,899 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) [2021-12-16 09:26:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2021-12-16 09:26:43,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-16 09:26:43,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:43,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2021-12-16 09:26:43,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:43,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2021-12-16 09:26:43,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:43,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-12-16 09:26:43,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:43,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 33 transitions. [2021-12-16 09:26:43,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-12-16 09:26:43,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-12-16 09:26:43,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2021-12-16 09:26:43,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:43,914 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-12-16 09:26:43,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2021-12-16 09:26:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2021-12-16 09:26:43,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 26 states have internal predecessors, (32), 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) [2021-12-16 09:26:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2021-12-16 09:26:43,922 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-12-16 09:26:43,922 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-12-16 09:26:43,923 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-16 09:26:43,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2021-12-16 09:26:43,924 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:43,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:43,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:43,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:43,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-16 09:26:43,925 INFO L791 eck$LassoCheckResult]: Stem: 484#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 485#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet21#1; 489#L578 assume !(0 != main_#t~nondet21#1);havoc main_#t~nondet21#1;assume { :begin_inline_f } true;f_#in~d#1 := 2;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~malloc6#1.base, f_#t~malloc6#1.offset, f_#t~mem7#1, f_#t~mem10#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~nondet14#1, f_#t~mem15#1, f_#t~mem16#1, f_#t~nondet17#1, f_#t~mem18#1, f_#t~mem19#1, f_#t~mem20#1, f_#t~mem11#1, f_#t~mem12#1, f_#t~short13#1, f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, f_~x~0#1.base, f_~x~0#1.offset, f_~y~0#1.base, f_~y~0#1.offset, f_~k~0#1.base, f_~k~0#1.offset, f_~z~0#1.base, f_~z~0#1.offset;f_~d#1 := f_#in~d#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~d_ref~0#1.base, f_~d_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~x~0#1.base, f_~x~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~y~0#1.base, f_~y~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~k~0#1.base, f_~k~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call f_#t~malloc6#1.base, f_#t~malloc6#1.offset := #Ultimate.allocOnStack(4);f_~z~0#1.base, f_~z~0#1.offset := f_#t~malloc6#1.base, f_#t~malloc6#1.offset;call write~int(f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(1, f_~x~0#1.base, f_~x~0#1.offset, 4);call write~int(1, f_~y~0#1.base, f_~y~0#1.offset, 4);call write~int(1, f_~k~0#1.base, f_~k~0#1.offset, 4);call write~int(1, f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 486#L558-1 assume !(f_#t~mem7#1 > 1073741823);havoc f_#t~mem7#1; 487#L562-5 call f_#t~mem8#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem9#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 494#L562-3 assume !(f_#t~mem8#1 < f_#t~mem9#1);havoc f_#t~mem8#1;havoc f_#t~mem9#1; 482#L567-5 [2021-12-16 09:26:43,925 INFO L793 eck$LassoCheckResult]: Loop: 482#L567-5 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 483#L566-5 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 480#L566-7 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 481#L567-3 assume !(0 != f_#t~nondet14#1);havoc f_#t~nondet14#1;call f_#t~mem19#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);call f_#t~mem20#1 := read~int(f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(f_#t~mem19#1 - f_#t~mem20#1, f_~y~0#1.base, f_~y~0#1.offset, 4);havoc f_#t~mem19#1;havoc f_#t~mem20#1; 482#L567-5 [2021-12-16 09:26:43,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:43,926 INFO L85 PathProgramCache]: Analyzing trace with hash 891018187, now seen corresponding path program 1 times [2021-12-16 09:26:43,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:43,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891353382] [2021-12-16 09:26:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:43,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:43,949 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:43,962 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:43,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:43,963 INFO L85 PathProgramCache]: Analyzing trace with hash 3266347, now seen corresponding path program 1 times [2021-12-16 09:26:43,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:43,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912549803] [2021-12-16 09:26:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:43,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:43,967 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:43,972 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:43,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1225178613, now seen corresponding path program 1 times [2021-12-16 09:26:43,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:43,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184291525] [2021-12-16 09:26:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:43,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:44,009 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:44,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:45,430 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:26:45,430 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:26:45,430 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:26:45,430 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:26:45,431 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:26:45,431 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:45,431 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:26:45,431 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:26:45,431 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i_Iteration4_Lasso [2021-12-16 09:26:45,431 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:26:45,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:26:45,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:45,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:45,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:46,669 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:26:46,669 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:26:46,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:46,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:46,679 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) [2021-12-16 09:26:46,680 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 [2021-12-16 09:26:46,681 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 [2021-12-16 09:26:46,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:46,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:46,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:46,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:46,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:46,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:46,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:46,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:46,713 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 [2021-12-16 09:26:46,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:46,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:46,714 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) [2021-12-16 09:26:46,714 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 [2021-12-16 09:26:46,716 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 [2021-12-16 09:26:46,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:46,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:46,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:46,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:46,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:46,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:46,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:46,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:46,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-16 09:26:46,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:46,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:46,740 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) [2021-12-16 09:26:46,741 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 [2021-12-16 09:26:46,777 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 [2021-12-16 09:26:46,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:46,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:46,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:46,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:46,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:46,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:46,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:46,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-16 09:26:46,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:46,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:46,817 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) [2021-12-16 09:26:46,818 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 [2021-12-16 09:26:46,819 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 [2021-12-16 09:26:46,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:46,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:46,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:46,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:46,839 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:46,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:46,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:46,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-16 09:26:46,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:46,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:46,886 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) [2021-12-16 09:26:46,887 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 [2021-12-16 09:26:46,887 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 [2021-12-16 09:26:46,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:46,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:46,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:46,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:46,897 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:46,897 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:46,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:46,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:46,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:46,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:46,917 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) [2021-12-16 09:26:46,919 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 [2021-12-16 09:26:46,920 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 [2021-12-16 09:26:46,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:46,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:46,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:46,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:46,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:46,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:46,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:46,960 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 [2021-12-16 09:26:46,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:46,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:46,961 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) [2021-12-16 09:26:46,963 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 [2021-12-16 09:26:46,964 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 [2021-12-16 09:26:46,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:46,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:46,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:46,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:46,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:46,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:47,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:47,016 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 [2021-12-16 09:26:47,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:47,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:47,018 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) [2021-12-16 09:26:47,018 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 [2021-12-16 09:26:47,020 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 [2021-12-16 09:26:47,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:47,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:47,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:47,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:47,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:47,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:47,047 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:47,066 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 [2021-12-16 09:26:47,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:47,067 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) [2021-12-16 09:26:47,073 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 [2021-12-16 09:26:47,074 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 [2021-12-16 09:26:47,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:47,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:47,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:47,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:47,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:47,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:47,090 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:47,108 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 [2021-12-16 09:26:47,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:47,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:47,110 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) [2021-12-16 09:26:47,113 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 [2021-12-16 09:26:47,114 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 [2021-12-16 09:26:47,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:47,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:47,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:47,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:47,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:47,122 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:47,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:47,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:47,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:47,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:47,149 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) [2021-12-16 09:26:47,150 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 [2021-12-16 09:26:47,151 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 [2021-12-16 09:26:47,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:47,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:47,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:47,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:47,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:47,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:47,176 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:26:47,195 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-12-16 09:26:47,195 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-16 09:26:47,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:47,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:47,196 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) [2021-12-16 09:26:47,197 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 [2021-12-16 09:26:47,198 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:26:47,208 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-16 09:26:47,208 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:26:47,208 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~y~0#1.base) ULTIMATE.start_f_~y~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~y~0#1.base) ULTIMATE.start_f_~y~0#1.offset)_2 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_f_~d_ref~0#1.base) ULTIMATE.start_f_~d_ref~0#1.offset)_2 - 2 >= 0] [2021-12-16 09:26:47,228 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 [2021-12-16 09:26:47,361 INFO L297 tatePredicateManager]: 56 out of 59 supporting invariants were superfluous and have been removed [2021-12-16 09:26:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:47,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-16 09:26:47,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:47,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 23 treesize of output 23 [2021-12-16 09:26:47,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:47,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:47,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:47,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:47,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:47,473 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-12-16 09:26:47,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 39 [2021-12-16 09:26:47,497 INFO L354 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2021-12-16 09:26:47,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 183 [2021-12-16 09:26:47,617 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 [2021-12-16 09:26:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:47,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:26:47,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:47,724 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-16 09:26:47,724 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 8 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) [2021-12-16 09:26:47,775 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 8. 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 37 states and 44 transitions. Complement of second has 10 states. [2021-12-16 09:26:47,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-16 09:26:47,776 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) [2021-12-16 09:26:47,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2021-12-16 09:26:47,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-16 09:26:47,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:47,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2021-12-16 09:26:47,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:47,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2021-12-16 09:26:47,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:47,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 44 transitions. [2021-12-16 09:26:47,778 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:47,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 43 transitions. [2021-12-16 09:26:47,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-12-16 09:26:47,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-12-16 09:26:47,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 43 transitions. [2021-12-16 09:26:47,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:47,779 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-12-16 09:26:47,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 43 transitions. [2021-12-16 09:26:47,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-12-16 09:26:47,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2) internal successors, (42), 34 states have internal predecessors, (42), 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) [2021-12-16 09:26:47,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-12-16 09:26:47,781 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-12-16 09:26:47,781 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-12-16 09:26:47,781 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-16 09:26:47,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 42 transitions. [2021-12-16 09:26:47,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:47,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:47,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:47,782 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:47,782 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:47,782 INFO L791 eck$LassoCheckResult]: Stem: 855#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 856#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet21#1; 860#L578 assume 0 != main_#t~nondet21#1;havoc main_#t~nondet21#1;assume { :begin_inline_f } true;f_#in~d#1 := 1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~malloc6#1.base, f_#t~malloc6#1.offset, f_#t~mem7#1, f_#t~mem10#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~nondet14#1, f_#t~mem15#1, f_#t~mem16#1, f_#t~nondet17#1, f_#t~mem18#1, f_#t~mem19#1, f_#t~mem20#1, f_#t~mem11#1, f_#t~mem12#1, f_#t~short13#1, f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, f_~x~0#1.base, f_~x~0#1.offset, f_~y~0#1.base, f_~y~0#1.offset, f_~k~0#1.base, f_~k~0#1.offset, f_~z~0#1.base, f_~z~0#1.offset;f_~d#1 := f_#in~d#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~d_ref~0#1.base, f_~d_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~x~0#1.base, f_~x~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~y~0#1.base, f_~y~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~k~0#1.base, f_~k~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call f_#t~malloc6#1.base, f_#t~malloc6#1.offset := #Ultimate.allocOnStack(4);f_~z~0#1.base, f_~z~0#1.offset := f_#t~malloc6#1.base, f_#t~malloc6#1.offset;call write~int(f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(1, f_~x~0#1.base, f_~x~0#1.offset, 4);call write~int(1, f_~y~0#1.base, f_~y~0#1.offset, 4);call write~int(1, f_~k~0#1.base, f_~k~0#1.offset, 4);call write~int(1, f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 866#L558 assume !(f_#t~mem7#1 > 1073741823);havoc f_#t~mem7#1; 867#L562-2 call f_#t~mem8#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem9#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 873#L562 assume !(f_#t~mem8#1 < f_#t~mem9#1);havoc f_#t~mem8#1;havoc f_#t~mem9#1; 874#L567-2 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 877#L566 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 872#L566-2 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 868#L567 assume 0 != f_#t~nondet14#1;havoc f_#t~nondet14#1; 869#L568 [2021-12-16 09:26:47,783 INFO L793 eck$LassoCheckResult]: Loop: 869#L568 call f_#t~mem15#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);call f_#t~mem16#1 := read~int(f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(f_#t~mem15#1 - f_#t~mem16#1, f_~x~0#1.base, f_~x~0#1.offset, 4);havoc f_#t~mem15#1;havoc f_#t~mem16#1;call write~int(f_#t~nondet17#1, f_~y~0#1.base, f_~y~0#1.offset, 4);havoc f_#t~nondet17#1;call f_#t~mem18#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call write~int(f_#t~mem18#1 - 1, f_~z~0#1.base, f_~z~0#1.offset, 4);havoc f_#t~mem18#1; 876#L567-2 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 861#L566 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 862#L566-2 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 880#L567 assume 0 != f_#t~nondet14#1;havoc f_#t~nondet14#1; 869#L568 [2021-12-16 09:26:47,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:47,783 INFO L85 PathProgramCache]: Analyzing trace with hash -260778639, now seen corresponding path program 1 times [2021-12-16 09:26:47,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:47,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960614932] [2021-12-16 09:26:47,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:47,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:47,801 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:47,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:47,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:47,815 INFO L85 PathProgramCache]: Analyzing trace with hash 69174960, now seen corresponding path program 1 times [2021-12-16 09:26:47,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:47,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330185644] [2021-12-16 09:26:47,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:47,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:47,825 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:47,831 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:47,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:47,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1938200384, now seen corresponding path program 1 times [2021-12-16 09:26:47,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:47,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111528066] [2021-12-16 09:26:47,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:47,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:48,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:48,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111528066] [2021-12-16 09:26:48,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111528066] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:26:48,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480489744] [2021-12-16 09:26:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:48,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:26:48,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:48,116 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:26:48,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-12-16 09:26:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:48,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 84 conjunts are in the unsatisfiable core [2021-12-16 09:26:48,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:48,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 56 [2021-12-16 09:26:48,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:48,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 56 [2021-12-16 09:26:48,304 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-12-16 09:26:48,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 53 [2021-12-16 09:26:48,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 56 [2021-12-16 09:26:48,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 56 [2021-12-16 09:26:48,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 53 [2021-12-16 09:26:48,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:48,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:48,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:48,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:48,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:48,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2021-12-16 09:26:48,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 57 [2021-12-16 09:26:48,762 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-16 09:26:48,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 23 [2021-12-16 09:26:48,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:48,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:26:48,787 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1138 (Array Int Int)) (v_ArrVal_1137 (Array Int Int))) (<= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_f_~x~0#1.base| (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_f_~x~0#1.base|))) (store .cse0 |c_ULTIMATE.start_f_~x~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_f_~x~0#1.offset|) (* (select (select |c_#memory_int| |c_ULTIMATE.start_f_~d_ref~0#1.base|) |c_ULTIMATE.start_f_~d_ref~0#1.offset|) (- 1)))))) |c_ULTIMATE.start_f_~y~0#1.base| v_ArrVal_1137) |c_ULTIMATE.start_f_~z~0#1.base| v_ArrVal_1138) |c_ULTIMATE.start_f_~x~0#1.base|) |c_ULTIMATE.start_f_~x~0#1.offset|) 0)) is different from false [2021-12-16 09:26:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-12-16 09:26:48,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480489744] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:26:48,830 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:26:48,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2021-12-16 09:26:48,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179654313] [2021-12-16 09:26:48,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:26:49,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:49,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 09:26:49,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=67, Unknown=1, NotChecked=16, Total=110 [2021-12-16 09:26:49,034 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. cyclomatic complexity: 11 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 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) [2021-12-16 09:26:49,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:49,259 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2021-12-16 09:26:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:26:49,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 50 transitions. [2021-12-16 09:26:49,260 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:49,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 38 states and 44 transitions. [2021-12-16 09:26:49,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-12-16 09:26:49,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-12-16 09:26:49,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 44 transitions. [2021-12-16 09:26:49,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:49,261 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 44 transitions. [2021-12-16 09:26:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 44 transitions. [2021-12-16 09:26:49,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2021-12-16 09:26:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 34 states have internal predecessors, (41), 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) [2021-12-16 09:26:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-12-16 09:26:49,263 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-12-16 09:26:49,263 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-12-16 09:26:49,263 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-16 09:26:49,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2021-12-16 09:26:49,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:49,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:49,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:49,264 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:49,264 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:49,264 INFO L791 eck$LassoCheckResult]: Stem: 1037#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1038#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet21#1; 1047#L578 assume !(0 != main_#t~nondet21#1);havoc main_#t~nondet21#1;assume { :begin_inline_f } true;f_#in~d#1 := 2;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~malloc6#1.base, f_#t~malloc6#1.offset, f_#t~mem7#1, f_#t~mem10#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~nondet14#1, f_#t~mem15#1, f_#t~mem16#1, f_#t~nondet17#1, f_#t~mem18#1, f_#t~mem19#1, f_#t~mem20#1, f_#t~mem11#1, f_#t~mem12#1, f_#t~short13#1, f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, f_~x~0#1.base, f_~x~0#1.offset, f_~y~0#1.base, f_~y~0#1.offset, f_~k~0#1.base, f_~k~0#1.offset, f_~z~0#1.base, f_~z~0#1.offset;f_~d#1 := f_#in~d#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~d_ref~0#1.base, f_~d_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~x~0#1.base, f_~x~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~y~0#1.base, f_~y~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~k~0#1.base, f_~k~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call f_#t~malloc6#1.base, f_#t~malloc6#1.offset := #Ultimate.allocOnStack(4);f_~z~0#1.base, f_~z~0#1.offset := f_#t~malloc6#1.base, f_#t~malloc6#1.offset;call write~int(f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(1, f_~x~0#1.base, f_~x~0#1.offset, 4);call write~int(1, f_~y~0#1.base, f_~y~0#1.offset, 4);call write~int(1, f_~k~0#1.base, f_~k~0#1.offset, 4);call write~int(1, f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 1044#L558-1 assume !(f_#t~mem7#1 > 1073741823);havoc f_#t~mem7#1; 1045#L562-5 call f_#t~mem8#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem9#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 1052#L562-3 assume !(f_#t~mem8#1 < f_#t~mem9#1);havoc f_#t~mem8#1;havoc f_#t~mem9#1; 1062#L567-5 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 1043#L566-5 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 1033#L566-7 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 1034#L567-3 assume 0 != f_#t~nondet14#1;havoc f_#t~nondet14#1; 1046#L568-1 [2021-12-16 09:26:49,264 INFO L793 eck$LassoCheckResult]: Loop: 1046#L568-1 call f_#t~mem15#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);call f_#t~mem16#1 := read~int(f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(f_#t~mem15#1 - f_#t~mem16#1, f_~x~0#1.base, f_~x~0#1.offset, 4);havoc f_#t~mem15#1;havoc f_#t~mem16#1;call write~int(f_#t~nondet17#1, f_~y~0#1.base, f_~y~0#1.offset, 4);havoc f_#t~nondet17#1;call f_#t~mem18#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call write~int(f_#t~mem18#1 - 1, f_~z~0#1.base, f_~z~0#1.offset, 4);havoc f_#t~mem18#1; 1039#L567-5 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 1040#L566-5 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 1066#L566-7 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 1065#L567-3 assume 0 != f_#t~nondet14#1;havoc f_#t~nondet14#1; 1046#L568-1 [2021-12-16 09:26:49,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:49,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1225178609, now seen corresponding path program 1 times [2021-12-16 09:26:49,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:49,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373790694] [2021-12-16 09:26:49,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:49,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:49,307 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:49,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:49,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:49,329 INFO L85 PathProgramCache]: Analyzing trace with hash 115935905, now seen corresponding path program 1 times [2021-12-16 09:26:49,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:49,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140353012] [2021-12-16 09:26:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:49,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:49,337 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:49,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:49,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:49,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1894022479, now seen corresponding path program 1 times [2021-12-16 09:26:49,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:49,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990726167] [2021-12-16 09:26:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:49,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:49,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:49,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990726167] [2021-12-16 09:26:49,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990726167] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:26:49,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590968566] [2021-12-16 09:26:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:49,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:26:49,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:49,659 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:26:49,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-12-16 09:26:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:49,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 89 conjunts are in the unsatisfiable core [2021-12-16 09:26:49,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:49,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,867 INFO L354 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2021-12-16 09:26:49,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 858 treesize of output 597 [2021-12-16 09:26:49,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,919 INFO L354 Elim1Store]: treesize reduction 21, result has 46.2 percent of original size [2021-12-16 09:26:49,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 616 treesize of output 487 [2021-12-16 09:26:49,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:49,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:50,158 INFO L354 Elim1Store]: treesize reduction 160, result has 43.1 percent of original size [2021-12-16 09:26:50,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 496 treesize of output 402 [2021-12-16 09:26:50,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-12-16 09:26:50,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:50,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:50,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:50,238 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-16 09:26:50,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2021-12-16 09:26:50,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:50,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-16 09:26:50,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 84 [2021-12-16 09:26:50,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-16 09:26:50,465 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-16 09:26:50,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-16 09:26:51,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 71 treesize of output 69 [2021-12-16 09:26:51,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-16 09:26:51,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:51,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:52,029 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:52,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 41 [2021-12-16 09:26:52,087 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:52,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 41 [2021-12-16 09:26:52,250 WARN L220 Elim1Store]: Array PQE input equivalent to false [2021-12-16 09:26:52,281 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:52,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 36 [2021-12-16 09:26:52,882 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-16 09:26:52,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:52,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:52,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:52,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:53,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:53,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-16 09:26:53,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:53,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:53,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-12-16 09:26:53,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:53,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2021-12-16 09:26:53,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:53,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-12-16 09:26:53,583 INFO L354 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2021-12-16 09:26:53,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 85 [2021-12-16 09:26:53,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:53,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-12-16 09:26:53,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:53,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 47 [2021-12-16 09:26:53,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2021-12-16 09:26:53,990 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:53,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 47 [2021-12-16 09:26:53,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-12-16 09:26:54,023 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:54,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 47 [2021-12-16 09:26:54,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-12-16 09:26:54,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:54,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:54,639 INFO L354 Elim1Store]: treesize reduction 100, result has 27.0 percent of original size [2021-12-16 09:26:54,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 127 treesize of output 149 [2021-12-16 09:26:54,664 INFO L354 Elim1Store]: treesize reduction 59, result has 20.3 percent of original size [2021-12-16 09:26:54,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 118 [2021-12-16 09:26:54,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 09:26:54,683 INFO L354 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2021-12-16 09:26:54,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 112 [2021-12-16 09:26:54,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 63 treesize of output 56 [2021-12-16 09:26:54,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-16 09:26:54,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 116 treesize of output 105 [2021-12-16 09:26:55,087 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 09:26:55,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 69 [2021-12-16 09:26:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:55,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:26:55,188 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1488 Int) (v_ArrVal_1487 Int) (v_ArrVal_1485 (Array Int Int)) (v_ArrVal_1484 (Array Int Int)) (v_ArrVal_1483 (Array Int Int)) (v_ArrVal_1481 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_f_~x~0#1.base|))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_f_~x~0#1.offset|)) (.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_f_~d_ref~0#1.base|) |c_ULTIMATE.start_f_~d_ref~0#1.offset|))) (or (<= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_f_~x~0#1.base| (store .cse0 |c_ULTIMATE.start_f_~x~0#1.offset| (+ .cse1 (* .cse2 (- 1))))) |c_ULTIMATE.start_f_~y~0#1.base| v_ArrVal_1485) |c_ULTIMATE.start_f_~z~0#1.base| (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_f_~x~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_f_~y~0#1.base| v_ArrVal_1481) |c_ULTIMATE.start_f_~z~0#1.base|) |c_ULTIMATE.start_f_~z~0#1.offset| v_ArrVal_1487)) |c_ULTIMATE.start_f_~x~0#1.base|) |c_ULTIMATE.start_f_~x~0#1.offset|) 0) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_f_~x~0#1.base| (store .cse0 |c_ULTIMATE.start_f_~x~0#1.offset| v_ArrVal_1488)) |c_ULTIMATE.start_f_~y~0#1.base| v_ArrVal_1484) |c_ULTIMATE.start_f_~z~0#1.base|) |c_ULTIMATE.start_f_~z~0#1.offset|) (+ v_ArrVal_1487 1)) (< .cse1 (+ v_ArrVal_1488 .cse2)))))) is different from false [2021-12-16 09:26:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-12-16 09:26:55,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590968566] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:26:55,518 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:26:55,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2021-12-16 09:26:55,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246259098] [2021-12-16 09:26:55,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:26:55,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:55,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 09:26:55,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=86, Unknown=1, NotChecked=18, Total=132 [2021-12-16 09:26:55,680 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. cyclomatic complexity: 10 Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-12-16 09:26:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:55,810 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2021-12-16 09:26:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 09:26:55,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 52 transitions. [2021-12-16 09:26:55,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:55,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 46 transitions. [2021-12-16 09:26:55,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-12-16 09:26:55,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-12-16 09:26:55,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 46 transitions. [2021-12-16 09:26:55,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:55,812 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 46 transitions. [2021-12-16 09:26:55,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 46 transitions. [2021-12-16 09:26:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2021-12-16 09:26:55,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 34 states have internal predecessors, (40), 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) [2021-12-16 09:26:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-12-16 09:26:55,813 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-12-16 09:26:55,813 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-12-16 09:26:55,813 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-16 09:26:55,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 40 transitions. [2021-12-16 09:26:55,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:26:55,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:55,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:55,814 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:55,814 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:55,814 INFO L791 eck$LassoCheckResult]: Stem: 1232#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1233#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet21#1; 1237#L578 assume 0 != main_#t~nondet21#1;havoc main_#t~nondet21#1;assume { :begin_inline_f } true;f_#in~d#1 := 1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~malloc6#1.base, f_#t~malloc6#1.offset, f_#t~mem7#1, f_#t~mem10#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~nondet14#1, f_#t~mem15#1, f_#t~mem16#1, f_#t~nondet17#1, f_#t~mem18#1, f_#t~mem19#1, f_#t~mem20#1, f_#t~mem11#1, f_#t~mem12#1, f_#t~short13#1, f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, f_~x~0#1.base, f_~x~0#1.offset, f_~y~0#1.base, f_~y~0#1.offset, f_~k~0#1.base, f_~k~0#1.offset, f_~z~0#1.base, f_~z~0#1.offset;f_~d#1 := f_#in~d#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~d_ref~0#1.base, f_~d_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~x~0#1.base, f_~x~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~y~0#1.base, f_~y~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~k~0#1.base, f_~k~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call f_#t~malloc6#1.base, f_#t~malloc6#1.offset := #Ultimate.allocOnStack(4);f_~z~0#1.base, f_~z~0#1.offset := f_#t~malloc6#1.base, f_#t~malloc6#1.offset;call write~int(f_~d#1, f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(1, f_~x~0#1.base, f_~x~0#1.offset, 4);call write~int(1, f_~y~0#1.base, f_~y~0#1.offset, 4);call write~int(1, f_~k~0#1.base, f_~k~0#1.offset, 4);call write~int(1, f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 1243#L558 assume !(f_#t~mem7#1 > 1073741823);havoc f_#t~mem7#1; 1244#L562-2 call f_#t~mem8#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call f_#t~mem9#1 := read~int(f_~k~0#1.base, f_~k~0#1.offset, 4); 1250#L562 assume !(f_#t~mem8#1 < f_#t~mem9#1);havoc f_#t~mem8#1;havoc f_#t~mem9#1; 1251#L567-2 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 1240#L566 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 1241#L566-2 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 1247#L567 assume !(0 != f_#t~nondet14#1);havoc f_#t~nondet14#1;call f_#t~mem19#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);call f_#t~mem20#1 := read~int(f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(f_#t~mem19#1 - f_#t~mem20#1, f_~y~0#1.base, f_~y~0#1.offset, 4);havoc f_#t~mem19#1;havoc f_#t~mem20#1; 1248#L567-2 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 1256#L566 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 1258#L566-2 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 1245#L567 assume 0 != f_#t~nondet14#1;havoc f_#t~nondet14#1; 1246#L568 [2021-12-16 09:26:55,814 INFO L793 eck$LassoCheckResult]: Loop: 1246#L568 call f_#t~mem15#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);call f_#t~mem16#1 := read~int(f_~d_ref~0#1.base, f_~d_ref~0#1.offset, 4);call write~int(f_#t~mem15#1 - f_#t~mem16#1, f_~x~0#1.base, f_~x~0#1.offset, 4);havoc f_#t~mem15#1;havoc f_#t~mem16#1;call write~int(f_#t~nondet17#1, f_~y~0#1.base, f_~y~0#1.offset, 4);havoc f_#t~nondet17#1;call f_#t~mem18#1 := read~int(f_~z~0#1.base, f_~z~0#1.offset, 4);call write~int(f_#t~mem18#1 - 1, f_~z~0#1.base, f_~z~0#1.offset, 4);havoc f_#t~mem18#1; 1255#L567-2 call f_#t~mem11#1 := read~int(f_~x~0#1.base, f_~x~0#1.offset, 4);f_#t~short13#1 := f_#t~mem11#1 > 0; 1238#L566 assume f_#t~short13#1;call f_#t~mem12#1 := read~int(f_~y~0#1.base, f_~y~0#1.offset, 4);f_#t~short13#1 := f_#t~mem12#1 > 0; 1239#L566-2 assume !!f_#t~short13#1;havoc f_#t~mem11#1;havoc f_#t~mem12#1;havoc f_#t~short13#1; 1249#L567 assume 0 != f_#t~nondet14#1;havoc f_#t~nondet14#1; 1246#L568 [2021-12-16 09:26:55,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:55,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1451216475, now seen corresponding path program 1 times [2021-12-16 09:26:55,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:55,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558382445] [2021-12-16 09:26:55,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:55,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:55,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:55,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558382445] [2021-12-16 09:26:55,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558382445] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:26:55,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522002329] [2021-12-16 09:26:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:55,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:26:55,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:55,985 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:26:55,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-12-16 09:26:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:56,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-16 09:26:56,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:57,093 INFO L354 Elim1Store]: treesize reduction 63, result has 45.2 percent of original size [2021-12-16 09:26:57,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 1404918 treesize of output 1114162 [2021-12-16 09:27:16,029 WARN L227 SmtUtils]: Spent 17.09s on a formula simplification. DAG size of input: 2052 DAG size of output: 833 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-16 09:27:16,043 INFO L354 Elim1Store]: treesize reduction 9601, result has 26.5 percent of original size [2021-12-16 09:27:16,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 60 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 64 new quantified variables, introduced 366 case distinctions, treesize of input 1114138 treesize of output 429949 [2021-12-16 09:27:20,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 301 treesize of output 246 [2021-12-16 09:27:23,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 181 treesize of output 141 [2021-12-16 09:27:25,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 181 treesize of output 141 [2021-12-16 09:27:28,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 85 [2021-12-16 09:27:30,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 85 [2021-12-16 09:27:33,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 85 [2021-12-16 09:27:36,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 85 [2021-12-16 09:27:38,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 181 treesize of output 141 [2021-12-16 09:27:41,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 301 treesize of output 246