./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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/Arrays01-EquivalentConstantIndices-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 cad2c6f6e8ebe2adcd550e4a56b83be37e52f812ae33bfb645236c6925734dbf --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:11:56,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:11:56,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:11:56,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:11:56,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:11:56,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:11:56,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:11:56,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:11:56,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:11:56,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:11:56,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:11:56,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:11:56,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:11:56,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:11:56,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:11:56,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:11:56,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:11:56,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:11:56,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:11:56,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:11:56,360 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:11:56,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:11:56,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:11:56,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:11:56,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:11:56,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:11:56,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:11:56,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:11:56,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:11:56,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:11:56,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:11:56,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:11:56,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:11:56,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:11:56,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:11:56,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:11:56,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:11:56,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:11:56,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:11:56,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:11:56,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:11:56,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:11:56,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:11:56,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:11:56,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:11:56,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:11:56,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:11:56,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:11:56,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:11:56,420 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:11:56,421 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:11:56,421 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:11:56,422 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:11:56,422 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:11:56,422 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:11:56,422 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:11:56,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:11:56,423 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:11:56,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:11:56,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:11:56,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:11:56,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:11:56,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:11:56,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:11:56,425 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:11:56,425 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:11:56,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:11:56,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:11:56,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:11:56,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:11:56,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:11:56,428 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:11:56,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad2c6f6e8ebe2adcd550e4a56b83be37e52f812ae33bfb645236c6925734dbf [2022-07-23 14:11:56,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:11:56,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:11:56,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:11:56,690 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:11:56,690 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:11:56,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c [2022-07-23 14:11:56,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac7f2cf5/05c880a396c84bfb97e4aa9f84d118aa/FLAGe957a4741 [2022-07-23 14:11:57,124 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:11:57,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c [2022-07-23 14:11:57,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac7f2cf5/05c880a396c84bfb97e4aa9f84d118aa/FLAGe957a4741 [2022-07-23 14:11:57,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac7f2cf5/05c880a396c84bfb97e4aa9f84d118aa [2022-07-23 14:11:57,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:11:57,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:11:57,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:11:57,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:11:57,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:11:57,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3afa70f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57, skipping insertion in model container [2022-07-23 14:11:57,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:11:57,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:11:57,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:11:57,314 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:11:57,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:11:57,341 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:11:57,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57 WrapperNode [2022-07-23 14:11:57,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:11:57,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:11:57,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:11:57,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:11:57,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,380 INFO L137 Inliner]: procedures = 8, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-07-23 14:11:57,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:11:57,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:11:57,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:11:57,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:11:57,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:11:57,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:11:57,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:11:57,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:11:57,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (1/1) ... [2022-07-23 14:11:57,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:57,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:57,444 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) [2022-07-23 14:11:57,447 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 [2022-07-23 14:11:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 14:11:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:11:57,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:11:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 14:11:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 14:11:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 14:11:57,524 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:11:57,525 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:11:57,603 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:11:57,607 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:11:57,607 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 14:11:57,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:11:57 BoogieIcfgContainer [2022-07-23 14:11:57,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:11:57,610 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:11:57,610 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:11:57,612 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:11:57,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:11:57,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:11:57" (1/3) ... [2022-07-23 14:11:57,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@799ed5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:11:57, skipping insertion in model container [2022-07-23 14:11:57,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:11:57,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:11:57" (2/3) ... [2022-07-23 14:11:57,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@799ed5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:11:57, skipping insertion in model container [2022-07-23 14:11:57,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:11:57,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:11:57" (3/3) ... [2022-07-23 14:11:57,615 INFO L354 chiAutomizerObserver]: Analyzing ICFG Arrays01-EquivalentConstantIndices-1.c [2022-07-23 14:11:57,662 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:11:57,663 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:11:57,663 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:11:57,663 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:11:57,663 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:11:57,663 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:11:57,663 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:11:57,664 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:11:57,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) [2022-07-23 14:11:57,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-23 14:11:57,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:11:57,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:11:57,687 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:11:57,687 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:11:57,687 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:11:57,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) [2022-07-23 14:11:57,689 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-23 14:11:57,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:11:57,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:11:57,689 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:11:57,690 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:11:57,696 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#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~mem3#1, main_#t~mem2#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 7#L13-3true [2022-07-23 14:11:57,696 INFO L754 eck$LassoCheckResult]: Loop: 7#L13-3true 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; 6#L13-2true main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 7#L13-3true [2022-07-23 14:11:57,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-23 14:11:57,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:57,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718848739] [2022-07-23 14:11:57,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:57,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:57,883 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:11:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:57,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:11:57,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-07-23 14:11:57,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:57,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636184884] [2022-07-23 14:11:57,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:57,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:57,971 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:11:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:57,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:11:57,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:57,982 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-07-23 14:11:57,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:57,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489414880] [2022-07-23 14:11:57,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:57,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:58,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:11:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:58,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:11:58,202 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:11:58,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:11:58,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:11:58,203 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:11:58,203 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:11:58,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:11:58,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:11:58,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: Arrays01-EquivalentConstantIndices-1.c_Iteration1_Lasso [2022-07-23 14:11:58,204 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:11:58,204 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:11:58,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:11:58,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:11:58,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:11:58,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:11:58,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:11:58,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:11:58,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:11:58,409 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:11:58,413 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:11:58,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:58,419 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) [2022-07-23 14:11:58,423 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 [2022-07-23 14:11:58,424 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 [2022-07-23 14:11:58,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:11:58,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:11:58,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:11:58,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:11:58,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:11:58,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:11:58,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:11:58,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-23 14:11:58,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:58,490 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) [2022-07-23 14:11:58,508 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 [2022-07-23 14:11:58,509 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 [2022-07-23 14:11:58,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:11:58,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:11:58,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:11:58,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:11:58,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:11:58,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:11:58,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:11:58,569 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 [2022-07-23 14:11:58,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:58,571 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) [2022-07-23 14:11:58,578 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 [2022-07-23 14:11:58,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:11:58,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:11:58,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:11:58,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:11:58,589 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 [2022-07-23 14:11:58,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:11:58,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:11:58,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:11:58,623 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 [2022-07-23 14:11:58,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:58,627 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) [2022-07-23 14:11:58,633 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 [2022-07-23 14:11:58,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:11:58,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:11:58,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:11:58,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:11:58,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:11:58,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:11:58,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:11:58,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:11:58,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-23 14:11:58,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:58,691 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) [2022-07-23 14:11:58,698 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 [2022-07-23 14:11:58,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:11:58,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:11:58,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:11:58,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:11:58,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:11:58,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:11:58,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:11:58,709 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 [2022-07-23 14:11:58,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:11:58,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-23 14:11:58,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:58,752 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) [2022-07-23 14:11:58,758 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 [2022-07-23 14:11:58,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:11:58,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:11:58,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:11:58,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:11:58,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:11:58,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:11:58,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:11:58,769 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 [2022-07-23 14:11:58,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:11:58,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-23 14:11:58,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:58,798 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) [2022-07-23 14:11:58,800 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 [2022-07-23 14:11:58,847 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 [2022-07-23 14:11:58,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:11:58,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:11:58,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:11:58,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:11:58,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:11:58,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:11:58,880 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:11:58,899 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-07-23 14:11:58,900 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2022-07-23 14:11:58,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:11:58,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:58,907 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) [2022-07-23 14:11:58,914 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 [2022-07-23 14:11:58,915 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:11:58,924 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 14:11:58,925 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:11:58,925 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 [] [2022-07-23 14:11:58,949 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 [2022-07-23 14:11:58,956 INFO L293 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2022-07-23 14:11:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:11:58,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:11:58,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:11:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:11:59,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 14:11:59,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:11:59,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,131 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:11:59,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) 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) [2022-07-23 14:11:59,133 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 [2022-07-23 14:11:59,188 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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). 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 22 states and 31 transitions. Complement of second has 8 states. [2022-07-23 14:11:59,189 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 [2022-07-23 14:11:59,195 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) [2022-07-23 14:11:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-07-23 14:11:59,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-23 14:11:59,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:11:59,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-23 14:11:59,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:11:59,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 14:11:59,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:11:59,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2022-07-23 14:11:59,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:11:59,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 8 states and 10 transitions. [2022-07-23 14:11:59,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-23 14:11:59,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-23 14:11:59,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2022-07-23 14:11:59,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:11:59,209 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-23 14:11:59,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2022-07-23 14:11:59,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-07-23 14:11:59,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-07-23 14:11:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-07-23 14:11:59,226 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-07-23 14:11:59,226 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-07-23 14:11:59,226 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:11:59,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-07-23 14:11:59,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:11:59,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:11:59,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:11:59,228 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 14:11:59,228 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:11:59,228 INFO L752 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 79#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~mem3#1, main_#t~mem2#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 82#L13-3 assume !(main_~i~0#1 < 1048); 76#L17-2 [2022-07-23 14:11:59,228 INFO L754 eck$LassoCheckResult]: Loop: 76#L17-2 call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4); 77#L17 assume !!(main_#t~mem2#1 >= 0);havoc main_#t~mem2#1;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem3#1 - 1, main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);havoc main_#t~mem3#1; 76#L17-2 [2022-07-23 14:11:59,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 1 times [2022-07-23 14:11:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:59,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157164309] [2022-07-23 14:11:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:59,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:11:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:11:59,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157164309] [2022-07-23 14:11:59,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157164309] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:11:59,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:11:59,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 14:11:59,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348199707] [2022-07-23 14:11:59,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:11:59,267 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:11:59,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 1 times [2022-07-23 14:11:59,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:59,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444189345] [2022-07-23 14:11:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:59,276 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:11:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:59,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:11:59,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:11:59,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 14:11:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 14:11:59,322 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 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) [2022-07-23 14:11:59,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:11:59,333 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2022-07-23 14:11:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 14:11:59,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2022-07-23 14:11:59,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:11:59,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 9 transitions. [2022-07-23 14:11:59,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-23 14:11:59,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-23 14:11:59,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2022-07-23 14:11:59,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:11:59,335 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-07-23 14:11:59,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2022-07-23 14:11:59,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-07-23 14:11:59,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:11:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-07-23 14:11:59,337 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-23 14:11:59,337 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-23 14:11:59,337 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 14:11:59,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-07-23 14:11:59,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:11:59,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:11:59,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:11:59,338 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-23 14:11:59,338 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:11:59,339 INFO L752 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post0#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem2#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 103#L13-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 101#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 102#L13-3 assume !(main_~i~0#1 < 1048); 98#L17-2 [2022-07-23 14:11:59,339 INFO L754 eck$LassoCheckResult]: Loop: 98#L17-2 call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4); 97#L17 assume !!(main_#t~mem2#1 >= 0);havoc main_#t~mem2#1;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem3#1 - 1, main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);havoc main_#t~mem3#1; 98#L17-2 [2022-07-23 14:11:59,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:59,339 INFO L85 PathProgramCache]: Analyzing trace with hash 28698723, now seen corresponding path program 1 times [2022-07-23 14:11:59,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:59,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955602552] [2022-07-23 14:11:59,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:59,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:11:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:11:59,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955602552] [2022-07-23 14:11:59,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955602552] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:11:59,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819116622] [2022-07-23 14:11:59,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:59,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:11:59,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:59,368 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:11:59,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 14:11:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:11:59,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 14:11:59,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:11:59,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:11:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819116622] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:11:59,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:11:59,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-23 14:11:59,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699930340] [2022-07-23 14:11:59,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:11:59,481 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:11:59,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:59,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 2 times [2022-07-23 14:11:59,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:59,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622296220] [2022-07-23 14:11:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:59,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:59,488 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:11:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:59,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:11:59,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:11:59,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 14:11:59,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 14:11:59,529 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 3 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) [2022-07-23 14:11:59,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:11:59,556 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-07-23 14:11:59,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 14:11:59,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2022-07-23 14:11:59,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:11:59,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2022-07-23 14:11:59,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-23 14:11:59,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-23 14:11:59,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2022-07-23 14:11:59,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:11:59,563 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-07-23 14:11:59,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2022-07-23 14:11:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-23 14:11:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:11:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-07-23 14:11:59,566 INFO L392 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-07-23 14:11:59,566 INFO L374 stractBuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-07-23 14:11:59,568 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 14:11:59,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2022-07-23 14:11:59,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:11:59,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:11:59,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:11:59,569 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1] [2022-07-23 14:11:59,569 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:11:59,569 INFO L752 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 154#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~mem3#1, main_#t~mem2#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 157#L13-3 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; 155#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 156#L13-3 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; 158#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 163#L13-3 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; 162#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 161#L13-3 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; 160#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 159#L13-3 assume !(main_~i~0#1 < 1048); 151#L17-2 [2022-07-23 14:11:59,569 INFO L754 eck$LassoCheckResult]: Loop: 151#L17-2 call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4); 152#L17 assume !!(main_#t~mem2#1 >= 0);havoc main_#t~mem2#1;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem3#1 - 1, main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);havoc main_#t~mem3#1; 151#L17-2 [2022-07-23 14:11:59,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:59,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1081477475, now seen corresponding path program 2 times [2022-07-23 14:11:59,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:59,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175968764] [2022-07-23 14:11:59,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:59,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:11:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:11:59,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175968764] [2022-07-23 14:11:59,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175968764] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:11:59,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684596180] [2022-07-23 14:11:59,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 14:11:59,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:11:59,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:11:59,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:11:59,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 14:11:59,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 14:11:59,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:11:59,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 14:11:59,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:11:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:11:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684596180] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:11:59,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:11:59,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-23 14:11:59,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095432773] [2022-07-23 14:11:59,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:11:59,755 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:11:59,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:59,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 3 times [2022-07-23 14:11:59,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:59,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484503647] [2022-07-23 14:11:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:59,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:59,761 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:11:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:11:59,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:11:59,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:11:59,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 14:11:59,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-23 14:11:59,815 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. cyclomatic complexity: 3 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) [2022-07-23 14:11:59,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:11:59,850 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-07-23 14:11:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 14:11:59,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2022-07-23 14:11:59,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:11:59,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2022-07-23 14:11:59,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-23 14:11:59,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-23 14:11:59,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2022-07-23 14:11:59,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:11:59,853 INFO L369 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-07-23 14:11:59,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2022-07-23 14:11:59,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-07-23 14:11:59,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:11:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-07-23 14:11:59,856 INFO L392 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-07-23 14:11:59,856 INFO L374 stractBuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-07-23 14:11:59,856 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-23 14:11:59,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2022-07-23 14:11:59,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:11:59,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:11:59,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:11:59,858 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1] [2022-07-23 14:11:59,858 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:11:59,858 INFO L752 eck$LassoCheckResult]: Stem: 267#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 268#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~mem3#1, main_#t~mem2#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 271#L13-3 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; 272#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 273#L13-3 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; 269#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 270#L13-3 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; 289#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 288#L13-3 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; 287#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 286#L13-3 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; 285#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 284#L13-3 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; 283#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 282#L13-3 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; 281#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 280#L13-3 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; 279#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 278#L13-3 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; 277#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 276#L13-3 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; 275#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 274#L13-3 assume !(main_~i~0#1 < 1048); 265#L17-2 [2022-07-23 14:11:59,858 INFO L754 eck$LassoCheckResult]: Loop: 265#L17-2 call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4); 266#L17 assume !!(main_#t~mem2#1 >= 0);havoc main_#t~mem2#1;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem3#1 - 1, main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);havoc main_#t~mem3#1; 265#L17-2 [2022-07-23 14:11:59,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:11:59,859 INFO L85 PathProgramCache]: Analyzing trace with hash 899905681, now seen corresponding path program 3 times [2022-07-23 14:11:59,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:11:59,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198950850] [2022-07-23 14:11:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:11:59,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:11:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:11:59,997 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:11:59,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:11:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198950850] [2022-07-23 14:11:59,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198950850] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:11:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054967278] [2022-07-23 14:11:59,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-23 14:11:59,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:11:59,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:00,056 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:12:00,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 14:12:00,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-23 14:12:00,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:12:00,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 14:12:00,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:00,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:12:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:00,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054967278] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:12:00,402 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:12:00,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-07-23 14:12:00,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859173263] [2022-07-23 14:12:00,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:12:00,403 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:12:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:00,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 4 times [2022-07-23 14:12:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:00,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6001916] [2022-07-23 14:12:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:00,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:00,412 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:00,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:00,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:12:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-23 14:12:00,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-07-23 14:12:00,452 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. cyclomatic complexity: 3 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) [2022-07-23 14:12:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:12:00,530 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2022-07-23 14:12:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-23 14:12:00,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 50 transitions. [2022-07-23 14:12:00,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:00,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 50 transitions. [2022-07-23 14:12:00,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-23 14:12:00,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-23 14:12:00,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 50 transitions. [2022-07-23 14:12:00,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:12:00,544 INFO L369 hiAutomatonCegarLoop]: Abstraction has 49 states and 50 transitions. [2022-07-23 14:12:00,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 50 transitions. [2022-07-23 14:12:00,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-07-23 14:12:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 48 states have internal predecessors, (50), 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) [2022-07-23 14:12:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2022-07-23 14:12:00,551 INFO L392 hiAutomatonCegarLoop]: Abstraction has 49 states and 50 transitions. [2022-07-23 14:12:00,551 INFO L374 stractBuchiCegarLoop]: Abstraction has 49 states and 50 transitions. [2022-07-23 14:12:00,551 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-23 14:12:00,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 50 transitions. [2022-07-23 14:12:00,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:00,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:12:00,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:12:00,554 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1] [2022-07-23 14:12:00,554 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:12:00,554 INFO L752 eck$LassoCheckResult]: Stem: 501#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 502#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~mem3#1, main_#t~mem2#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 505#L13-3 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; 506#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 507#L13-3 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; 503#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 504#L13-3 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; 547#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 546#L13-3 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; 545#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 544#L13-3 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; 543#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 542#L13-3 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; 541#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 540#L13-3 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; 539#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 538#L13-3 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; 537#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 536#L13-3 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; 535#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 534#L13-3 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; 533#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 532#L13-3 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#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 530#L13-3 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#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 528#L13-3 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; 527#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 526#L13-3 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; 525#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 524#L13-3 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; 523#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 522#L13-3 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; 521#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 520#L13-3 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; 519#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 518#L13-3 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; 517#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 516#L13-3 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; 515#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 514#L13-3 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; 513#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 512#L13-3 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; 511#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 510#L13-3 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; 509#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 508#L13-3 assume !(main_~i~0#1 < 1048); 499#L17-2 [2022-07-23 14:12:00,554 INFO L754 eck$LassoCheckResult]: Loop: 499#L17-2 call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4); 500#L17 assume !!(main_#t~mem2#1 >= 0);havoc main_#t~mem2#1;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem3#1 - 1, main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);havoc main_#t~mem3#1; 499#L17-2 [2022-07-23 14:12:00,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:00,555 INFO L85 PathProgramCache]: Analyzing trace with hash -111832455, now seen corresponding path program 4 times [2022-07-23 14:12:00,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:00,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532150545] [2022-07-23 14:12:00,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:00,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:00,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:12:00,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532150545] [2022-07-23 14:12:00,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532150545] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:12:00,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444202909] [2022-07-23 14:12:00,931 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-23 14:12:00,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:12:00,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:00,939 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:12:00,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-23 14:12:01,019 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-23 14:12:01,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:12:01,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-23 14:12:01,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:01,108 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:01,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:12:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:01,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444202909] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:12:01,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:12:01,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2022-07-23 14:12:01,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242236938] [2022-07-23 14:12:01,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:12:01,803 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:12:01,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 5 times [2022-07-23 14:12:01,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:01,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566867411] [2022-07-23 14:12:01,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:01,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:01,809 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:01,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:01,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:12:01,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-07-23 14:12:01,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-07-23 14:12:01,842 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. cyclomatic complexity: 3 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) [2022-07-23 14:12:02,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:12:02,004 INFO L93 Difference]: Finished difference Result 97 states and 98 transitions. [2022-07-23 14:12:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-23 14:12:02,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 98 transitions. [2022-07-23 14:12:02,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:02,016 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 97 states and 98 transitions. [2022-07-23 14:12:02,016 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-23 14:12:02,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-23 14:12:02,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 98 transitions. [2022-07-23 14:12:02,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:12:02,018 INFO L369 hiAutomatonCegarLoop]: Abstraction has 97 states and 98 transitions. [2022-07-23 14:12:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 98 transitions. [2022-07-23 14:12:02,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-07-23 14:12:02,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 97 states have (on average 1.0103092783505154) internal successors, (98), 96 states have internal predecessors, (98), 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) [2022-07-23 14:12:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2022-07-23 14:12:02,029 INFO L392 hiAutomatonCegarLoop]: Abstraction has 97 states and 98 transitions. [2022-07-23 14:12:02,029 INFO L374 stractBuchiCegarLoop]: Abstraction has 97 states and 98 transitions. [2022-07-23 14:12:02,029 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-23 14:12:02,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 98 transitions. [2022-07-23 14:12:02,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:02,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:12:02,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:12:02,033 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1] [2022-07-23 14:12:02,033 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:12:02,034 INFO L752 eck$LassoCheckResult]: Stem: 975#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 976#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~mem3#1, main_#t~mem2#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 979#L13-3 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; 980#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 981#L13-3 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; 977#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 978#L13-3 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; 1069#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1068#L13-3 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; 1067#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1066#L13-3 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; 1065#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1064#L13-3 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; 1063#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1062#L13-3 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; 1061#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1060#L13-3 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; 1059#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1058#L13-3 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; 1057#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1056#L13-3 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; 1055#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1054#L13-3 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; 1053#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1052#L13-3 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; 1051#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1050#L13-3 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; 1049#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1048#L13-3 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; 1047#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1046#L13-3 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; 1045#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1044#L13-3 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; 1043#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1042#L13-3 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; 1041#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1040#L13-3 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; 1039#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1038#L13-3 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; 1037#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1036#L13-3 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; 1035#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1034#L13-3 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; 1033#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1032#L13-3 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; 1031#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1030#L13-3 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; 1029#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1028#L13-3 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; 1027#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1026#L13-3 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; 1025#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1024#L13-3 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; 1023#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1022#L13-3 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; 1021#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1020#L13-3 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; 1019#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1018#L13-3 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; 1017#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1016#L13-3 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; 1015#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1014#L13-3 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; 1013#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1012#L13-3 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; 1011#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1010#L13-3 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#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1008#L13-3 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#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1006#L13-3 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; 1005#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1004#L13-3 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; 1003#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1002#L13-3 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; 1001#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1000#L13-3 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; 999#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 998#L13-3 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; 997#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 996#L13-3 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; 995#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 994#L13-3 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; 993#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 992#L13-3 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; 991#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 990#L13-3 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; 989#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 988#L13-3 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; 987#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 986#L13-3 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; 985#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 984#L13-3 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; 983#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 982#L13-3 assume !(main_~i~0#1 < 1048); 973#L17-2 [2022-07-23 14:12:02,034 INFO L754 eck$LassoCheckResult]: Loop: 973#L17-2 call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4); 974#L17 assume !!(main_#t~mem2#1 >= 0);havoc main_#t~mem2#1;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem3#1 - 1, main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);havoc main_#t~mem3#1; 973#L17-2 [2022-07-23 14:12:02,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:02,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1497227703, now seen corresponding path program 5 times [2022-07-23 14:12:02,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:02,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284505223] [2022-07-23 14:12:02,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:02,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:03,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:12:03,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284505223] [2022-07-23 14:12:03,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284505223] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:12:03,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722823093] [2022-07-23 14:12:03,051 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-23 14:12:03,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:12:03,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:03,054 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:12:03,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-23 14:12:13,864 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-23 14:12:13,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:12:13,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-23 14:12:13,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:14,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:14,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:12:16,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:16,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722823093] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:12:16,401 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:12:16,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2022-07-23 14:12:16,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136287736] [2022-07-23 14:12:16,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:12:16,402 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:12:16,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:16,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 6 times [2022-07-23 14:12:16,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:16,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893737920] [2022-07-23 14:12:16,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:16,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:16,409 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:16,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:16,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:12:16,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-07-23 14:12:16,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-07-23 14:12:16,444 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. cyclomatic complexity: 3 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) [2022-07-23 14:12:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:12:16,746 INFO L93 Difference]: Finished difference Result 193 states and 194 transitions. [2022-07-23 14:12:16,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-23 14:12:16,748 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 193 states and 194 transitions. [2022-07-23 14:12:16,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:16,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 193 states to 193 states and 194 transitions. [2022-07-23 14:12:16,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-23 14:12:16,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-23 14:12:16,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 194 transitions. [2022-07-23 14:12:16,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:12:16,762 INFO L369 hiAutomatonCegarLoop]: Abstraction has 193 states and 194 transitions. [2022-07-23 14:12:16,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states and 194 transitions. [2022-07-23 14:12:16,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2022-07-23 14:12:16,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 1.005181347150259) internal successors, (194), 192 states have internal predecessors, (194), 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) [2022-07-23 14:12:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 194 transitions. [2022-07-23 14:12:16,774 INFO L392 hiAutomatonCegarLoop]: Abstraction has 193 states and 194 transitions. [2022-07-23 14:12:16,774 INFO L374 stractBuchiCegarLoop]: Abstraction has 193 states and 194 transitions. [2022-07-23 14:12:16,774 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-23 14:12:16,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 194 transitions. [2022-07-23 14:12:16,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:16,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:12:16,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:12:16,779 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [94, 94, 1, 1, 1] [2022-07-23 14:12:16,779 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:12:16,780 INFO L752 eck$LassoCheckResult]: Stem: 1929#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1930#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~mem3#1, main_#t~mem2#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 1933#L13-3 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; 1934#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1935#L13-3 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; 1931#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1932#L13-3 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; 2119#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2118#L13-3 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; 2117#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2116#L13-3 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; 2115#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2114#L13-3 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; 2113#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2112#L13-3 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; 2111#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2110#L13-3 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; 2109#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2108#L13-3 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; 2107#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2106#L13-3 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; 2105#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2104#L13-3 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; 2103#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2102#L13-3 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; 2101#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2100#L13-3 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; 2099#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2098#L13-3 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; 2097#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2096#L13-3 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; 2095#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2094#L13-3 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; 2093#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2092#L13-3 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; 2091#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2090#L13-3 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; 2089#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2088#L13-3 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; 2087#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2086#L13-3 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; 2085#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2084#L13-3 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; 2083#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2082#L13-3 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; 2081#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2080#L13-3 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; 2079#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2078#L13-3 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; 2077#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2076#L13-3 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; 2075#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2074#L13-3 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; 2073#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2072#L13-3 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; 2071#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2070#L13-3 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; 2069#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2068#L13-3 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; 2067#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2066#L13-3 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; 2065#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2064#L13-3 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; 2063#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2062#L13-3 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; 2061#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2060#L13-3 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; 2059#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2058#L13-3 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; 2057#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2056#L13-3 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; 2055#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2054#L13-3 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; 2053#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2052#L13-3 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; 2051#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2050#L13-3 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; 2049#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2048#L13-3 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; 2047#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2046#L13-3 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; 2045#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2044#L13-3 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; 2043#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2042#L13-3 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; 2041#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2040#L13-3 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; 2039#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2038#L13-3 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; 2037#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2036#L13-3 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; 2035#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2034#L13-3 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; 2033#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2032#L13-3 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; 2031#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2030#L13-3 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; 2029#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2028#L13-3 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; 2027#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2026#L13-3 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; 2025#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2024#L13-3 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; 2023#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2022#L13-3 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; 2021#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2020#L13-3 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; 2019#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2018#L13-3 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; 2017#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2016#L13-3 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; 2015#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2014#L13-3 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; 2013#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2012#L13-3 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; 2011#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2010#L13-3 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; 2009#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2008#L13-3 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; 2007#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2006#L13-3 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; 2005#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2004#L13-3 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; 2003#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2002#L13-3 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; 2001#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 2000#L13-3 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; 1999#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1998#L13-3 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; 1997#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1996#L13-3 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; 1995#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1994#L13-3 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; 1993#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1992#L13-3 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; 1991#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1990#L13-3 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; 1989#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1988#L13-3 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; 1987#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1986#L13-3 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; 1985#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1984#L13-3 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; 1983#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1982#L13-3 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; 1981#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1980#L13-3 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; 1979#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1978#L13-3 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; 1977#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1976#L13-3 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; 1975#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1974#L13-3 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; 1973#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1972#L13-3 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; 1971#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1970#L13-3 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; 1969#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1968#L13-3 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#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1966#L13-3 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#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1964#L13-3 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; 1963#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1962#L13-3 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; 1961#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1960#L13-3 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; 1959#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1958#L13-3 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; 1957#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1956#L13-3 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; 1955#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1954#L13-3 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; 1953#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1952#L13-3 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; 1951#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1950#L13-3 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; 1949#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1948#L13-3 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; 1947#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1946#L13-3 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; 1945#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1944#L13-3 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; 1943#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1942#L13-3 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; 1941#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1940#L13-3 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; 1939#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1938#L13-3 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; 1937#L13-2 main_#t~post0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post0#1;havoc main_#t~post0#1; 1936#L13-3 assume !(main_~i~0#1 < 1048); 1927#L17-2 [2022-07-23 14:12:16,780 INFO L754 eck$LassoCheckResult]: Loop: 1927#L17-2 call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4); 1928#L17 assume !!(main_#t~mem2#1 >= 0);havoc main_#t~mem2#1;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem3#1 - 1, main_~#a~0#1.base, 12 + main_~#a~0#1.offset, 4);havoc main_#t~mem3#1; 1927#L17-2 [2022-07-23 14:12:16,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:16,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2115802601, now seen corresponding path program 6 times [2022-07-23 14:12:16,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:16,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402561575] [2022-07-23 14:12:16,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:16,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:19,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:12:19,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402561575] [2022-07-23 14:12:19,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402561575] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:12:19,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666602388] [2022-07-23 14:12:19,934 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-23 14:12:19,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:12:19,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:19,938 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) [2022-07-23 14:12:19,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process