./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a31fd051 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-crafted/LexIndexValue-Array-1.c -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 d69e4513fb8989bf305d8f9ce21862e8623f2a3d0c8146e8e7fb7e8c658a7eff --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:12:18,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:12:18,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:12:18,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:12:18,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:12:18,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:12:18,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:12:18,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:12:18,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:12:18,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:12:18,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:12:18,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:12:18,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:12:18,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:12:18,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:12:18,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:12:18,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:12:18,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:12:18,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:12:18,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:12:18,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:12:18,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:12:18,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:12:18,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:12:18,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:12:18,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:12:18,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:12:18,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:12:18,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:12:18,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:12:18,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:12:18,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:12:18,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:12:18,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:12:18,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:12:18,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:12:18,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:12:18,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:12:18,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:12:18,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:12:18,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:12:18,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 14:12:18,227 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:12:18,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:12:18,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:12:18,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:12:18,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:12:18,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:12:18,230 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:12:18,230 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 14:12:18,230 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 14:12:18,230 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 14:12:18,231 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 14:12:18,231 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 14:12:18,231 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 14:12:18,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:12:18,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:12:18,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:12:18,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:12:18,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 14:12:18,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 14:12:18,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 14:12:18,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:12:18,240 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 14:12:18,240 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:12:18,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 14:12:18,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:12:18,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:12:18,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:12:18,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:12:18,242 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 14:12:18,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d69e4513fb8989bf305d8f9ce21862e8623f2a3d0c8146e8e7fb7e8c658a7eff [2023-02-15 14:12:18,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:12:18,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:12:18,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:12:18,459 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:12:18,460 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:12:18,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c [2023-02-15 14:12:19,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:12:19,546 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:12:19,546 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c [2023-02-15 14:12:19,550 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4841301ad/cfed625217d443c38fa0dcc7661c1358/FLAGbfa39d71d [2023-02-15 14:12:19,559 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4841301ad/cfed625217d443c38fa0dcc7661c1358 [2023-02-15 14:12:19,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:12:19,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:12:19,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:12:19,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:12:19,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:12:19,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a96a265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19, skipping insertion in model container [2023-02-15 14:12:19,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:12:19,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:12:19,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:12:19,691 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:12:19,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:12:19,720 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:12:19,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19 WrapperNode [2023-02-15 14:12:19,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:12:19,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:12:19,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:12:19,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:12:19,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,746 INFO L138 Inliner]: procedures = 8, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2023-02-15 14:12:19,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:12:19,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:12:19,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:12:19,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:12:19,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:12:19,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:12:19,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:12:19,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:12:19,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (1/1) ... [2023-02-15 14:12:19,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:19,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:19,812 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) [2023-02-15 14:12:19,815 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 [2023-02-15 14:12:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 14:12:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:12:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:12:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 14:12:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 14:12:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 14:12:19,909 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:12:19,911 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:12:19,991 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:12:19,995 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:12:19,995 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 14:12:19,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:12:19 BoogieIcfgContainer [2023-02-15 14:12:19,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:12:19,998 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 14:12:19,998 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 14:12:20,000 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 14:12:20,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:12:20,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:12:19" (1/3) ... [2023-02-15 14:12:20,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c85e22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:12:20, skipping insertion in model container [2023-02-15 14:12:20,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:12:20,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:19" (2/3) ... [2023-02-15 14:12:20,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c85e22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:12:20, skipping insertion in model container [2023-02-15 14:12:20,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:12:20,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:12:19" (3/3) ... [2023-02-15 14:12:20,003 INFO L332 chiAutomizerObserver]: Analyzing ICFG LexIndexValue-Array-1.c [2023-02-15 14:12:20,037 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 14:12:20,037 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 14:12:20,037 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 14:12:20,038 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 14:12:20,038 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 14:12:20,038 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 14:12:20,038 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 14:12:20,038 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 14:12:20,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2023-02-15 14:12:20,052 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-15 14:12:20,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:20,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:20,055 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:12:20,056 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 14:12:20,056 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 14:12:20,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2023-02-15 14:12:20,057 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-15 14:12:20,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:20,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:20,057 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:12:20,058 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 14:12:20,063 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem2#1, main_#t~short3#1, main_~#a~0#1.base, main_~#a~0#1.offset, main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~k~0#1 := 0;main_~i~0#1 := 0; 11#L14-3true [2023-02-15 14:12:20,063 INFO L750 eck$LassoCheckResult]: Loop: 11#L14-3true assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 12#L14-2true main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 11#L14-3true [2023-02-15 14:12:20,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:20,067 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 14:12:20,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:20,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570257736] [2023-02-15 14:12:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:20,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:20,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:20,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:20,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:20,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2023-02-15 14:12:20,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:20,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471705718] [2023-02-15 14:12:20,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:20,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:20,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:20,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:20,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:20,164 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2023-02-15 14:12:20,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:20,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481261903] [2023-02-15 14:12:20,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:20,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:20,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:20,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:20,347 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:12:20,348 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:12:20,348 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:12:20,348 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:12:20,348 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:12:20,348 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,348 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:12:20,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:12:20,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: LexIndexValue-Array-1.c_Iteration1_Lasso [2023-02-15 14:12:20,349 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:12:20,349 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:12:20,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,370 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,385 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,391 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,393 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,478 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,480 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:12:20,648 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:12:20,652 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:12:20,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:20,662 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) [2023-02-15 14:12:20,663 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 [2023-02-15 14:12:20,665 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 [2023-02-15 14:12:20,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:20,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:12:20,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:20,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:20,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:20,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:12:20,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:12:20,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:20,717 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 [2023-02-15 14:12:20,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:20,719 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) [2023-02-15 14:12:20,723 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 [2023-02-15 14:12:20,725 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 [2023-02-15 14:12:20,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:20,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:12:20,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:20,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:20,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:20,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:12:20,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:12:20,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:20,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-15 14:12:20,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:20,750 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) [2023-02-15 14:12:20,752 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 [2023-02-15 14:12:20,753 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 [2023-02-15 14:12:20,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:20,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:12:20,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:20,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:20,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:20,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:12:20,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:12:20,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:20,776 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 [2023-02-15 14:12:20,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:20,778 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) [2023-02-15 14:12:20,780 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 [2023-02-15 14:12:20,782 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 [2023-02-15 14:12:20,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:20,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:20,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:20,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:20,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:12:20,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:12:20,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:20,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-15 14:12:20,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:20,819 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) [2023-02-15 14:12:20,821 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 [2023-02-15 14:12:20,823 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 [2023-02-15 14:12:20,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:20,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:20,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:20,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:20,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:12:20,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:12:20,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:20,867 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 [2023-02-15 14:12:20,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:20,870 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) [2023-02-15 14:12:20,872 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 [2023-02-15 14:12:20,874 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 [2023-02-15 14:12:20,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:20,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:12:20,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:20,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:20,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:20,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:12:20,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:12:20,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:20,895 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 [2023-02-15 14:12:20,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:20,897 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) [2023-02-15 14:12:20,897 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 [2023-02-15 14:12:20,900 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 [2023-02-15 14:12:20,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:20,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:20,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:20,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:20,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:12:20,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:12:20,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:20,926 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 [2023-02-15 14:12:20,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:20,945 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) [2023-02-15 14:12:20,948 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 [2023-02-15 14:12:20,949 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 [2023-02-15 14:12:20,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:20,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:20,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:20,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:20,972 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:12:20,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:12:20,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:20,994 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 [2023-02-15 14:12:20,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:20,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:21,017 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) [2023-02-15 14:12:21,020 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 [2023-02-15 14:12:21,021 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 [2023-02-15 14:12:21,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:21,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:21,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:21,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:21,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:12:21,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:12:21,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:21,051 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 [2023-02-15 14:12:21,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:21,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:21,075 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) [2023-02-15 14:12:21,093 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 [2023-02-15 14:12:21,108 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 [2023-02-15 14:12:21,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:21,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:12:21,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:21,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:21,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:21,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:12:21,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:12:21,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:21,132 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 [2023-02-15 14:12:21,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:21,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:21,134 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) [2023-02-15 14:12:21,137 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 [2023-02-15 14:12:21,138 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 [2023-02-15 14:12:21,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:21,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:12:21,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:21,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:21,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:21,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:12:21,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:12:21,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:12:21,164 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 [2023-02-15 14:12:21,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:21,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:21,168 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) [2023-02-15 14:12:21,170 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 [2023-02-15 14:12:21,172 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 [2023-02-15 14:12:21,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:12:21,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:12:21,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:12:21,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:12:21,186 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:12:21,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:12:21,214 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:12:21,242 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2023-02-15 14:12:21,243 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2023-02-15 14:12:21,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:12:21,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:21,282 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) [2023-02-15 14:12:21,284 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 [2023-02-15 14:12:21,285 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:12:21,306 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-02-15 14:12:21,306 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:12:21,307 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 2095*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 - 8*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-15 14:12:21,316 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 [2023-02-15 14:12:21,323 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-02-15 14:12:21,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:21,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 14:12:21,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:12:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:21,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:12:21,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:12:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:21,519 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-15 14:12:21,520 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 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) [2023-02-15 14:12:21,571 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 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) Result 28 states and 43 transitions. Complement of second has 8 states. [2023-02-15 14:12:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-15 14:12:21,578 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2023-02-15 14:12:21,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2023-02-15 14:12:21,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-15 14:12:21,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:12:21,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-15 14:12:21,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:12:21,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-15 14:12:21,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:12:21,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2023-02-15 14:12:21,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:21,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 10 states and 14 transitions. [2023-02-15 14:12:21,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:12:21,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-15 14:12:21,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2023-02-15 14:12:21,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:12:21,589 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-15 14:12:21,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2023-02-15 14:12:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-02-15 14:12:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:12:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2023-02-15 14:12:21,607 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-15 14:12:21,607 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-15 14:12:21,607 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 14:12:21,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2023-02-15 14:12:21,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:21,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:21,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:21,609 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 14:12:21,609 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:12:21,609 INFO L748 eck$LassoCheckResult]: Stem: 87#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 88#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem2#1, main_#t~short3#1, main_~#a~0#1.base, main_~#a~0#1.offset, main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~k~0#1 := 0;main_~i~0#1 := 0; 89#L14-3 assume !(main_~i~0#1 < 1048); 83#L19-2 [2023-02-15 14:12:21,609 INFO L750 eck$LassoCheckResult]: Loop: 83#L19-2 main_#t~short3#1 := main_~k~0#1 < 1048; 84#L18 assume main_#t~short3#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short3#1 := main_#t~mem2#1 >= 0; 85#L18-2 assume !!main_#t~short3#1;havoc main_#t~mem2#1;havoc main_#t~short3#1; 86#L19 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 83#L19-2 [2023-02-15 14:12:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 1 times [2023-02-15 14:12:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:21,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874920267] [2023-02-15 14:12:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:21,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:21,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:12:21,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874920267] [2023-02-15 14:12:21,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874920267] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:12:21,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:12:21,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:12:21,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216473101] [2023-02-15 14:12:21,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:12:21,655 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 14:12:21,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1511655, now seen corresponding path program 1 times [2023-02-15 14:12:21,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:21,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424779591] [2023-02-15 14:12:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:21,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:21,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:21,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:12:21,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:12:21,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:12:21,744 INFO L87 Difference]: Start difference. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-15 14:12:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:12:21,754 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2023-02-15 14:12:21,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2023-02-15 14:12:21,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:21,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2023-02-15 14:12:21,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:12:21,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 14:12:21,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2023-02-15 14:12:21,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:12:21,757 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-02-15 14:12:21,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2023-02-15 14:12:21,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-02-15 14:12:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-02-15 14:12:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-02-15 14:12:21,758 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 14:12:21,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:12:21,759 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 14:12:21,759 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 14:12:21,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-02-15 14:12:21,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:21,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:21,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:21,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-15 14:12:21,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:12:21,761 INFO L748 eck$LassoCheckResult]: Stem: 112#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem2#1, main_#t~short3#1, main_~#a~0#1.base, main_~#a~0#1.offset, main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~k~0#1 := 0;main_~i~0#1 := 0; 114#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 115#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 116#L14-3 assume !(main_~i~0#1 < 1048); 108#L19-2 [2023-02-15 14:12:21,761 INFO L750 eck$LassoCheckResult]: Loop: 108#L19-2 main_#t~short3#1 := main_~k~0#1 < 1048; 109#L18 assume main_#t~short3#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short3#1 := main_#t~mem2#1 >= 0; 110#L18-2 assume !!main_#t~short3#1;havoc main_#t~mem2#1;havoc main_#t~short3#1; 111#L19 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 108#L19-2 [2023-02-15 14:12:21,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:21,764 INFO L85 PathProgramCache]: Analyzing trace with hash 28698723, now seen corresponding path program 1 times [2023-02-15 14:12:21,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:21,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272328902] [2023-02-15 14:12:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:21,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:21,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:21,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:12:21,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272328902] [2023-02-15 14:12:21,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272328902] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:12:21,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792756632] [2023-02-15 14:12:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:21,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:12:21,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:21,815 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:12:21,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 14:12:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:21,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:12:21,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:12:21,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:21,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:12:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:21,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792756632] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:12:21,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:12:21,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-02-15 14:12:21,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549944234] [2023-02-15 14:12:21,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:12:21,874 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 14:12:21,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:21,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1511655, now seen corresponding path program 2 times [2023-02-15 14:12:21,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:21,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564997229] [2023-02-15 14:12:21,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:21,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:21,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:21,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:21,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-15 14:12:21,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:12:21,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 14:12:21,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:12:21,962 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2023-02-15 14:12:21,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:12:21,990 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2023-02-15 14:12:21,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2023-02-15 14:12:21,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:21,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2023-02-15 14:12:21,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:12:21,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 14:12:21,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2023-02-15 14:12:21,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:12:21,994 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2023-02-15 14:12:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2023-02-15 14:12:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 14:12:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:12:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2023-02-15 14:12:22,012 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2023-02-15 14:12:22,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:12:22,013 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2023-02-15 14:12:22,013 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-15 14:12:22,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2023-02-15 14:12:22,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:22,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:22,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:22,014 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1] [2023-02-15 14:12:22,014 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:12:22,014 INFO L748 eck$LassoCheckResult]: Stem: 170#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 171#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem2#1, main_#t~short3#1, main_~#a~0#1.base, main_~#a~0#1.offset, main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~k~0#1 := 0;main_~i~0#1 := 0; 172#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 173#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 174#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 175#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 180#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 179#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 178#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 177#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 176#L14-3 assume !(main_~i~0#1 < 1048); 166#L19-2 [2023-02-15 14:12:22,014 INFO L750 eck$LassoCheckResult]: Loop: 166#L19-2 main_#t~short3#1 := main_~k~0#1 < 1048; 167#L18 assume main_#t~short3#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short3#1 := main_#t~mem2#1 >= 0; 168#L18-2 assume !!main_#t~short3#1;havoc main_#t~mem2#1;havoc main_#t~short3#1; 169#L19 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 166#L19-2 [2023-02-15 14:12:22,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:22,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1081477475, now seen corresponding path program 2 times [2023-02-15 14:12:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:22,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145597955] [2023-02-15 14:12:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:22,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:22,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:12:22,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145597955] [2023-02-15 14:12:22,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145597955] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:12:22,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564687716] [2023-02-15 14:12:22,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:12:22,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:12:22,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:22,175 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:12:22,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 14:12:22,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:12:22,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:12:22,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:12:22,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:12:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:22,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:12:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:22,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564687716] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:12:22,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:12:22,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-02-15 14:12:22,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597959361] [2023-02-15 14:12:22,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:12:22,341 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 14:12:22,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1511655, now seen corresponding path program 3 times [2023-02-15 14:12:22,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:22,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758754555] [2023-02-15 14:12:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:22,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:22,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:22,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:22,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:12:22,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 14:12:22,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-02-15 14:12:22,439 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 13 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) [2023-02-15 14:12:22,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:12:22,475 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2023-02-15 14:12:22,475 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 30 transitions. [2023-02-15 14:12:22,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:22,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 30 transitions. [2023-02-15 14:12:22,476 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:12:22,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 14:12:22,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 30 transitions. [2023-02-15 14:12:22,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:12:22,477 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-15 14:12:22,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 30 transitions. [2023-02-15 14:12:22,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-15 14:12:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 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) [2023-02-15 14:12:22,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-15 14:12:22,480 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-15 14:12:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 14:12:22,481 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-15 14:12:22,481 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-15 14:12:22,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2023-02-15 14:12:22,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:22,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:22,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:22,483 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1] [2023-02-15 14:12:22,483 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:12:22,483 INFO L748 eck$LassoCheckResult]: Stem: 288#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 289#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem2#1, main_#t~short3#1, main_~#a~0#1.base, main_~#a~0#1.offset, main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~k~0#1 := 0;main_~i~0#1 := 0; 290#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 291#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 292#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 293#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 294#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 310#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 309#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 308#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 307#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 306#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 305#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 304#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 303#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 302#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 301#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 300#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 299#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 298#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 297#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 296#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 295#L14-3 assume !(main_~i~0#1 < 1048); 284#L19-2 [2023-02-15 14:12:22,483 INFO L750 eck$LassoCheckResult]: Loop: 284#L19-2 main_#t~short3#1 := main_~k~0#1 < 1048; 285#L18 assume main_#t~short3#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short3#1 := main_#t~mem2#1 >= 0; 286#L18-2 assume !!main_#t~short3#1;havoc main_#t~mem2#1;havoc main_#t~short3#1; 287#L19 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 284#L19-2 [2023-02-15 14:12:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:22,484 INFO L85 PathProgramCache]: Analyzing trace with hash 899905681, now seen corresponding path program 3 times [2023-02-15 14:12:22,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:22,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659354949] [2023-02-15 14:12:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:22,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:22,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:12:22,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659354949] [2023-02-15 14:12:22,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659354949] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:12:22,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362226927] [2023-02-15 14:12:22,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:12:22,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:12:22,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:22,688 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:12:22,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 14:12:22,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 14:12:22,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:12:22,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 14:12:22,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:12:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:22,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:12:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:23,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362226927] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:12:23,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:12:23,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-02-15 14:12:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670400546] [2023-02-15 14:12:23,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:12:23,087 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 14:12:23,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:23,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1511655, now seen corresponding path program 4 times [2023-02-15 14:12:23,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:23,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461795650] [2023-02-15 14:12:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:23,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:23,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:23,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:23,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:12:23,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-15 14:12:23,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-02-15 14:12:23,145 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 25 states, 24 states have (on average 2.0) internal successors, (48), 25 states have internal predecessors, (48), 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) [2023-02-15 14:12:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:12:23,203 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2023-02-15 14:12:23,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 54 transitions. [2023-02-15 14:12:23,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:23,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 54 transitions. [2023-02-15 14:12:23,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:12:23,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 14:12:23,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 54 transitions. [2023-02-15 14:12:23,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:12:23,205 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 54 transitions. [2023-02-15 14:12:23,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 54 transitions. [2023-02-15 14:12:23,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-02-15 14:12:23,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 50 states have internal predecessors, (54), 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) [2023-02-15 14:12:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2023-02-15 14:12:23,208 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 54 transitions. [2023-02-15 14:12:23,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 14:12:23,208 INFO L428 stractBuchiCegarLoop]: Abstraction has 51 states and 54 transitions. [2023-02-15 14:12:23,209 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-15 14:12:23,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 54 transitions. [2023-02-15 14:12:23,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:23,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:23,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:23,210 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1] [2023-02-15 14:12:23,210 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:12:23,211 INFO L748 eck$LassoCheckResult]: Stem: 526#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 527#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem2#1, main_#t~short3#1, main_~#a~0#1.base, main_~#a~0#1.offset, main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~k~0#1 := 0;main_~i~0#1 := 0; 528#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 531#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 532#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 529#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 530#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 572#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 571#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 570#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 569#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 568#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 567#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 566#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 565#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 564#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 563#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 562#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 561#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 560#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 559#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 558#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 557#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 556#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 555#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 554#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 553#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 552#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 551#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 550#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 549#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 548#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 547#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 546#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 545#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 544#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 543#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 542#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 541#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 540#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 539#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 538#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 537#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 536#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 535#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 534#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 533#L14-3 assume !(main_~i~0#1 < 1048); 522#L19-2 [2023-02-15 14:12:23,211 INFO L750 eck$LassoCheckResult]: Loop: 522#L19-2 main_#t~short3#1 := main_~k~0#1 < 1048; 523#L18 assume main_#t~short3#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short3#1 := main_#t~mem2#1 >= 0; 524#L18-2 assume !!main_#t~short3#1;havoc main_#t~mem2#1;havoc main_#t~short3#1; 525#L19 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 522#L19-2 [2023-02-15 14:12:23,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:23,211 INFO L85 PathProgramCache]: Analyzing trace with hash -111832455, now seen corresponding path program 4 times [2023-02-15 14:12:23,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:23,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521240693] [2023-02-15 14:12:23,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:23,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:23,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:12:23,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521240693] [2023-02-15 14:12:23,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521240693] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:12:23,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548221170] [2023-02-15 14:12:23,663 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 14:12:23,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:12:23,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:23,691 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:12:23,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 14:12:23,757 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 14:12:23,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:12:23,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 14:12:23,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:12:23,812 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:23,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:12:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:24,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548221170] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:12:24,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:12:24,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-02-15 14:12:24,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350947770] [2023-02-15 14:12:24,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:12:24,354 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 14:12:24,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:24,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1511655, now seen corresponding path program 5 times [2023-02-15 14:12:24,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:24,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6485957] [2023-02-15 14:12:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:24,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:24,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:24,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:24,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:12:24,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-02-15 14:12:24,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-02-15 14:12:24,417 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. cyclomatic complexity: 5 Second operand has 49 states, 48 states have (on average 2.0) internal successors, (96), 49 states have internal predecessors, (96), 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) [2023-02-15 14:12:24,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:12:24,542 INFO L93 Difference]: Finished difference Result 99 states and 102 transitions. [2023-02-15 14:12:24,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 102 transitions. [2023-02-15 14:12:24,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:24,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 99 states and 102 transitions. [2023-02-15 14:12:24,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:12:24,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 14:12:24,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 102 transitions. [2023-02-15 14:12:24,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:12:24,548 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 102 transitions. [2023-02-15 14:12:24,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 102 transitions. [2023-02-15 14:12:24,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-02-15 14:12:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.0303030303030303) internal successors, (102), 98 states have internal predecessors, (102), 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) [2023-02-15 14:12:24,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 102 transitions. [2023-02-15 14:12:24,564 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99 states and 102 transitions. [2023-02-15 14:12:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 14:12:24,564 INFO L428 stractBuchiCegarLoop]: Abstraction has 99 states and 102 transitions. [2023-02-15 14:12:24,565 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-15 14:12:24,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 102 transitions. [2023-02-15 14:12:24,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:24,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:24,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:24,569 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1] [2023-02-15 14:12:24,569 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:12:24,569 INFO L748 eck$LassoCheckResult]: Stem: 1004#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1005#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem2#1, main_#t~short3#1, main_~#a~0#1.base, main_~#a~0#1.offset, main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~k~0#1 := 0;main_~i~0#1 := 0; 1006#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1007#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1008#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1009#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1010#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1098#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1097#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1096#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1095#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1094#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1093#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1092#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1091#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1090#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1089#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1088#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1087#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1086#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1085#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1084#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1083#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1082#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1081#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1080#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1079#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1078#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1077#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1076#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1075#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1074#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1073#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1072#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1071#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1070#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1069#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1068#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1067#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1066#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1065#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1064#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1063#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1062#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1061#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1060#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1059#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1058#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1057#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1056#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1055#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1054#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1053#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1052#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1051#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1050#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1049#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1048#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1047#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1046#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1045#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1044#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1043#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1042#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1041#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1040#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1039#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1038#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1037#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1036#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1035#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1034#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1033#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1032#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1031#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1030#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1029#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1028#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1027#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1026#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1025#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1024#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1023#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1022#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1021#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1020#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1019#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1018#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1017#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1016#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1015#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1014#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1013#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1012#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1011#L14-3 assume !(main_~i~0#1 < 1048); 1000#L19-2 [2023-02-15 14:12:24,569 INFO L750 eck$LassoCheckResult]: Loop: 1000#L19-2 main_#t~short3#1 := main_~k~0#1 < 1048; 1001#L18 assume main_#t~short3#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short3#1 := main_#t~mem2#1 >= 0; 1002#L18-2 assume !!main_#t~short3#1;havoc main_#t~mem2#1;havoc main_#t~short3#1; 1003#L19 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1000#L19-2 [2023-02-15 14:12:24,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:24,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1497227703, now seen corresponding path program 5 times [2023-02-15 14:12:24,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:24,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139531094] [2023-02-15 14:12:24,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:24,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:25,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:12:25,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139531094] [2023-02-15 14:12:25,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139531094] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:12:25,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517064712] [2023-02-15 14:12:25,927 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 14:12:25,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:12:25,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:25,934 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:12:25,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 14:12:29,062 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 14:12:29,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:12:29,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 14:12:29,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:12:29,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:29,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:12:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:31,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517064712] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:12:31,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:12:31,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2023-02-15 14:12:31,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590570188] [2023-02-15 14:12:31,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:12:31,328 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 14:12:31,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:31,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1511655, now seen corresponding path program 6 times [2023-02-15 14:12:31,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:31,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775861300] [2023-02-15 14:12:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:31,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:12:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:12:31,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:12:31,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:12:31,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-02-15 14:12:31,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-02-15 14:12:31,390 INFO L87 Difference]: Start difference. First operand 99 states and 102 transitions. cyclomatic complexity: 5 Second operand has 97 states, 96 states have (on average 2.0) internal successors, (192), 97 states have internal predecessors, (192), 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) [2023-02-15 14:12:31,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:12:31,627 INFO L93 Difference]: Finished difference Result 195 states and 198 transitions. [2023-02-15 14:12:31,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 198 transitions. [2023-02-15 14:12:31,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:31,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 198 transitions. [2023-02-15 14:12:31,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:12:31,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 14:12:31,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 198 transitions. [2023-02-15 14:12:31,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:12:31,640 INFO L218 hiAutomatonCegarLoop]: Abstraction has 195 states and 198 transitions. [2023-02-15 14:12:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 198 transitions. [2023-02-15 14:12:31,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-02-15 14:12:31,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 195 states have (on average 1.0153846153846153) internal successors, (198), 194 states have internal predecessors, (198), 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) [2023-02-15 14:12:31,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 198 transitions. [2023-02-15 14:12:31,650 INFO L240 hiAutomatonCegarLoop]: Abstraction has 195 states and 198 transitions. [2023-02-15 14:12:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 14:12:31,652 INFO L428 stractBuchiCegarLoop]: Abstraction has 195 states and 198 transitions. [2023-02-15 14:12:31,652 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-15 14:12:31,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 198 transitions. [2023-02-15 14:12:31,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:12:31,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:12:31,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:12:31,659 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [94, 94, 1, 1, 1] [2023-02-15 14:12:31,659 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:12:31,661 INFO L748 eck$LassoCheckResult]: Stem: 1962#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1963#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem2#1, main_#t~short3#1, main_~#a~0#1.base, main_~#a~0#1.offset, main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~k~0#1 := 0;main_~i~0#1 := 0; 1964#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1965#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1966#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1967#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1968#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2152#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2151#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2150#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2149#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2148#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2147#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2146#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2145#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2144#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2143#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2142#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2141#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2140#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2139#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2138#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2137#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2136#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2135#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2134#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2133#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2132#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2131#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2130#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2129#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2128#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2127#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2126#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2125#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2124#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2123#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2122#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2121#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2120#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2119#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2118#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2117#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2116#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2115#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2114#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2113#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2112#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2111#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2110#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2109#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2108#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2107#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2106#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2105#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2104#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2103#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2102#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2101#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2100#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2099#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2098#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2097#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2096#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2095#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2094#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2093#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2092#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2091#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2090#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2089#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2088#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2087#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2086#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2085#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2084#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2083#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2082#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2081#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2080#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2079#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2078#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2077#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2076#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2075#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2074#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2073#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2072#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2071#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2070#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2069#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2068#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2067#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2066#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2065#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2064#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2063#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2062#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2061#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2060#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2059#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2058#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2057#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2056#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2055#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2054#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2053#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2052#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2051#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2050#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2049#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2048#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2047#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2046#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2045#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2044#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2043#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2042#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2041#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2040#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2039#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2038#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2037#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2036#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2035#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2034#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2033#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2032#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2031#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2030#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2029#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2028#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2027#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2026#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2025#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2024#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2023#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2022#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2021#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2020#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2019#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2018#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2017#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2016#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2015#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2014#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2013#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2012#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2011#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2010#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2009#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2008#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2007#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2006#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2005#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2004#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2003#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2002#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2001#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 2000#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1999#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1998#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1997#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1996#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1995#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1994#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1993#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1992#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1991#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1990#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1989#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1988#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1987#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1986#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1985#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1984#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1983#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1982#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1981#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1980#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1979#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1978#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1977#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1976#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1975#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1974#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1973#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1972#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1971#L14-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1970#L14-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1969#L14-3 assume !(main_~i~0#1 < 1048); 1958#L19-2 [2023-02-15 14:12:31,662 INFO L750 eck$LassoCheckResult]: Loop: 1958#L19-2 main_#t~short3#1 := main_~k~0#1 < 1048; 1959#L18 assume main_#t~short3#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short3#1 := main_#t~mem2#1 >= 0; 1960#L18-2 assume !!main_#t~short3#1;havoc main_#t~mem2#1;havoc main_#t~short3#1; 1961#L19 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1958#L19-2 [2023-02-15 14:12:31,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:12:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2115802601, now seen corresponding path program 6 times [2023-02-15 14:12:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:12:31,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19260585] [2023-02-15 14:12:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:12:31,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:12:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:12:35,929 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:12:35,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:12:35,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19260585] [2023-02-15 14:12:35,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19260585] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:12:35,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764153988] [2023-02-15 14:12:35,930 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 14:12:35,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:12:35,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:12:35,933 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:12:35,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process