./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/sum_array-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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/AutomizerReach.xml -i ../sv-benchmarks/c/loops/sum_array-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84226515a723f10f2a919f265c45890771224ac18b5dd5f986441c53175929f5 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:47:20,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:47:20,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:47:20,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:47:20,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:47:20,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:47:20,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:47:20,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:47:20,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:47:20,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:47:20,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:47:20,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:47:20,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:47:20,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:47:20,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:47:20,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:47:20,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:47:20,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:47:20,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:47:20,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:47:20,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:47:20,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:47:20,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:47:20,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:47:20,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:47:20,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:47:20,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:47:20,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:47:20,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:47:20,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:47:20,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:47:20,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:47:20,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:47:20,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:47:20,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:47:20,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:47:20,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:47:20,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:47:20,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:47:20,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:47:20,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:47:20,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 13:47:20,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:47:20,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:47:20,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:47:20,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:47:20,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:47:20,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:47:20,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:47:20,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:47:20,471 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:47:20,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:47:20,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:47:20,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 13:47:20,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:47:20,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:47:20,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:47:20,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:47:20,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:47:20,472 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:47:20,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:47:20,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:47:20,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:47:20,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:47:20,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:47:20,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:47:20,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:47:20,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:47:20,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:47:20,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:47:20,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 13:47:20,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 13:47:20,475 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:47:20,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:47:20,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:47:20,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:47:20,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84226515a723f10f2a919f265c45890771224ac18b5dd5f986441c53175929f5 [2021-12-14 13:47:20,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:47:20,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:47:20,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:47:20,713 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:47:20,714 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:47:20,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-2.i [2021-12-14 13:47:20,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1627dcb/fa375f087b144cd68fdab4565411233a/FLAG7283426ca [2021-12-14 13:47:21,202 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:47:21,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2.i [2021-12-14 13:47:21,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1627dcb/fa375f087b144cd68fdab4565411233a/FLAG7283426ca [2021-12-14 13:47:21,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1627dcb/fa375f087b144cd68fdab4565411233a [2021-12-14 13:47:21,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:47:21,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:47:21,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:47:21,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:47:21,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:47:21,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34dae1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21, skipping insertion in model container [2021-12-14 13:47:21,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:47:21,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:47:21,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2.i[938,951] [2021-12-14 13:47:21,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:47:21,403 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:47:21,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2.i[938,951] [2021-12-14 13:47:21,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:47:21,432 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:47:21,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21 WrapperNode [2021-12-14 13:47:21,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:47:21,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:47:21,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:47:21,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:47:21,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,478 INFO L137 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2021-12-14 13:47:21,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:47:21,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:47:21,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:47:21,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:47:21,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:47:21,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:47:21,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:47:21,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:47:21,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (1/1) ... [2021-12-14 13:47:21,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:47:21,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:47:21,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 13:47:21,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 13:47:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:47:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 13:47:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 13:47:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 13:47:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:47:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:47:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 13:47:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 13:47:21,628 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:47:21,630 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 13:47:21,797 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 13:47:21,815 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 13:47:21,815 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-14 13:47:21,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:47:21 BoogieIcfgContainer [2021-12-14 13:47:21,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 13:47:21,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 13:47:21,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 13:47:21,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 13:47:21,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:47:21" (1/3) ... [2021-12-14 13:47:21,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0d9e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:47:21, skipping insertion in model container [2021-12-14 13:47:21,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:21" (2/3) ... [2021-12-14 13:47:21,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0d9e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:47:21, skipping insertion in model container [2021-12-14 13:47:21,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:47:21" (3/3) ... [2021-12-14 13:47:21,822 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_array-2.i [2021-12-14 13:47:21,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 13:47:21,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 13:47:21,854 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 13:47:21,859 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 13:47:21,859 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 13:47:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:21,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-14 13:47:21,871 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:47:21,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:47:21,872 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:47:21,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:47:21,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1741268329, now seen corresponding path program 1 times [2021-12-14 13:47:21,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:47:21,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506170133] [2021-12-14 13:47:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:47:21,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:47:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:47:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:47:22,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:47:22,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506170133] [2021-12-14 13:47:22,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506170133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:47:22,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:47:22,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 13:47:22,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509346743] [2021-12-14 13:47:22,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:47:22,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 13:47:22,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:47:22,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 13:47:22,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 13:47:22,121 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:22,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:47:22,134 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2021-12-14 13:47:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 13:47:22,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-14 13:47:22,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:47:22,143 INFO L225 Difference]: With dead ends: 41 [2021-12-14 13:47:22,143 INFO L226 Difference]: Without dead ends: 19 [2021-12-14 13:47:22,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 13:47:22,151 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:47:22,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:47:22,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-14 13:47:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-14 13:47:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:22,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-12-14 13:47:22,178 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 11 [2021-12-14 13:47:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:47:22,178 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-12-14 13:47:22,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:22,178 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-12-14 13:47:22,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-14 13:47:22,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:47:22,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:47:22,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 13:47:22,180 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:47:22,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:47:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash -217285445, now seen corresponding path program 1 times [2021-12-14 13:47:22,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:47:22,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381073804] [2021-12-14 13:47:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:47:22,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:47:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:47:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:47:22,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:47:22,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381073804] [2021-12-14 13:47:22,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381073804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:47:22,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:47:22,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 13:47:22,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489094268] [2021-12-14 13:47:22,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:47:22,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 13:47:22,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:47:22,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 13:47:22,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 13:47:22,323 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:22,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:47:22,405 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2021-12-14 13:47:22,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 13:47:22,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-14 13:47:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:47:22,407 INFO L225 Difference]: With dead ends: 52 [2021-12-14 13:47:22,407 INFO L226 Difference]: Without dead ends: 33 [2021-12-14 13:47:22,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 13:47:22,412 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 13:47:22,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 28 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 13:47:22,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-12-14 13:47:22,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 22. [2021-12-14 13:47:22,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:22,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-14 13:47:22,423 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 11 [2021-12-14 13:47:22,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:47:22,424 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-14 13:47:22,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:22,427 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-12-14 13:47:22,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-14 13:47:22,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:47:22,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:47:22,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 13:47:22,428 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:47:22,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:47:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2020776544, now seen corresponding path program 1 times [2021-12-14 13:47:22,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:47:22,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463727349] [2021-12-14 13:47:22,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:47:22,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:47:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:47:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-14 13:47:23,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:47:23,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463727349] [2021-12-14 13:47:23,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463727349] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:47:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887151895] [2021-12-14 13:47:23,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:47:23,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:47:23,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:47:23,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:47:23,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 13:47:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:47:23,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-14 13:47:23,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:47:23,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-12-14 13:47:23,243 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-14 13:47:23,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2021-12-14 13:47:23,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 13:47:23,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:47:23,475 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:23,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 197 [2021-12-14 13:47:27,008 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:27,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 62 [2021-12-14 13:47:27,064 INFO L354 Elim1Store]: treesize reduction 7, result has 50.0 percent of original size [2021-12-14 13:47:27,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 83 [2021-12-14 13:47:27,500 INFO L354 Elim1Store]: treesize reduction 10, result has 28.6 percent of original size [2021-12-14 13:47:27,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 120 [2021-12-14 13:47:28,078 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-12-14 13:47:28,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 1 [2021-12-14 13:47:28,089 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-12-14 13:47:28,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 1 [2021-12-14 13:47:28,354 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-12-14 13:47:28,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 87 [2021-12-14 13:47:29,466 INFO L354 Elim1Store]: treesize reduction 40, result has 70.8 percent of original size [2021-12-14 13:47:29,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 888 treesize of output 576 [2021-12-14 13:47:35,293 INFO L354 Elim1Store]: treesize reduction 33, result has 74.4 percent of original size [2021-12-14 13:47:35,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 220 [2021-12-14 13:47:35,718 INFO L354 Elim1Store]: treesize reduction 108, result has 16.3 percent of original size [2021-12-14 13:47:35,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 172 treesize of output 112 [2021-12-14 13:47:35,738 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-14 13:47:35,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 1 [2021-12-14 13:47:35,745 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-14 13:47:35,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 1 [2021-12-14 13:47:35,776 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:35,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 451 treesize of output 373 [2021-12-14 13:47:36,496 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-14 13:47:36,501 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-14 13:47:36,508 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-14 13:47:36,511 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-14 13:47:36,519 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-14 13:47:36,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 1 [2021-12-14 13:47:36,570 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:36,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 575 treesize of output 439 [2021-12-14 13:47:38,670 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-14 13:47:38,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 816 treesize of output 1 [2021-12-14 13:47:38,684 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-14 13:47:38,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 1 [2021-12-14 13:47:38,714 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-12-14 13:47:38,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 1 [2021-12-14 13:47:38,726 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-14 13:47:38,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 1 [2021-12-14 13:47:38,735 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-14 13:47:38,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 1 [2021-12-14 13:47:38,743 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-14 13:47:38,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 1 [2021-12-14 13:47:38,750 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-14 13:47:38,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 1 [2021-12-14 13:47:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 13:47:38,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887151895] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:47:38,848 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:47:38,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 16 [2021-12-14 13:47:38,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363717606] [2021-12-14 13:47:38,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:47:38,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-14 13:47:38,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:47:38,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-14 13:47:38,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-12-14 13:47:38,850 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:47:39,101 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2021-12-14 13:47:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 13:47:39,102 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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) Word has length 19 [2021-12-14 13:47:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:47:39,102 INFO L225 Difference]: With dead ends: 34 [2021-12-14 13:47:39,102 INFO L226 Difference]: Without dead ends: 32 [2021-12-14 13:47:39,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2021-12-14 13:47:39,103 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 73 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 13:47:39,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 51 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 13:47:39,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-12-14 13:47:39,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2021-12-14 13:47:39,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:39,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-12-14 13:47:39,107 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 19 [2021-12-14 13:47:39,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:47:39,107 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-12-14 13:47:39,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:39,108 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-12-14 13:47:39,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-14 13:47:39,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:47:39,108 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:47:39,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 13:47:39,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:47:39,334 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:47:39,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:47:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1709087114, now seen corresponding path program 1 times [2021-12-14 13:47:39,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:47:39,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027255159] [2021-12-14 13:47:39,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:47:39,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:47:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:47:39,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-14 13:47:39,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:47:39,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027255159] [2021-12-14 13:47:39,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027255159] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:47:39,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416753574] [2021-12-14 13:47:39,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:47:39,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:47:39,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:47:39,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:47:39,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 13:47:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:47:39,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 13:47:39,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:47:39,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-14 13:47:39,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:47:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-14 13:47:39,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416753574] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:47:39,739 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:47:39,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2021-12-14 13:47:39,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188910044] [2021-12-14 13:47:39,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:47:39,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-14 13:47:39,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:47:39,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-14 13:47:39,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-12-14 13:47:39,742 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:47:39,954 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-12-14 13:47:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 13:47:39,955 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 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) Word has length 23 [2021-12-14 13:47:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:47:39,956 INFO L225 Difference]: With dead ends: 76 [2021-12-14 13:47:39,956 INFO L226 Difference]: Without dead ends: 45 [2021-12-14 13:47:39,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2021-12-14 13:47:39,959 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 70 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 13:47:39,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 109 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 13:47:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-14 13:47:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2021-12-14 13:47:39,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-12-14 13:47:39,969 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 23 [2021-12-14 13:47:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:47:39,969 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-12-14 13:47:39,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:47:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-12-14 13:47:39,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-14 13:47:39,970 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:47:39,970 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:47:40,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 13:47:40,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-14 13:47:40,187 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:47:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:47:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1108233645, now seen corresponding path program 2 times [2021-12-14 13:47:40,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:47:40,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108475784] [2021-12-14 13:47:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:47:40,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:47:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:47:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:47:42,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:47:42,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108475784] [2021-12-14 13:47:42,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108475784] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:47:42,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141259391] [2021-12-14 13:47:42,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 13:47:42,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:47:42,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:47:42,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:47:42,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 13:47:42,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 13:47:42,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 13:47:42,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-14 13:47:42,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:47:42,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-12-14 13:47:42,278 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-12-14 13:47:42,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2021-12-14 13:47:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-14 13:47:42,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:47:42,632 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:42,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 217 treesize of output 221 [2021-12-14 13:47:43,625 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:43,626 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:43,632 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:43,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 94 [2021-12-14 13:47:44,561 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:44,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2021-12-14 13:47:44,577 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:44,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2021-12-14 13:47:44,742 INFO L354 Elim1Store]: treesize reduction 50, result has 44.4 percent of original size [2021-12-14 13:47:44,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 40 [2021-12-14 13:47:44,771 INFO L354 Elim1Store]: treesize reduction 56, result has 43.4 percent of original size [2021-12-14 13:47:44,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 43 [2021-12-14 13:47:44,961 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:44,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2021-12-14 13:47:44,987 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:44,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-12-14 13:47:45,976 INFO L354 Elim1Store]: treesize reduction 1126, result has 31.6 percent of original size [2021-12-14 13:47:45,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 43 case distinctions, treesize of input 460 treesize of output 831 [2021-12-14 13:47:55,719 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:55,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:55,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:55,766 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:55,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 88 [2021-12-14 13:47:56,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:56,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:56,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:56,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:47:56,299 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:47:56,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 121 treesize of output 351 [2021-12-14 13:48:09,036 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:09,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:09,106 INFO L354 Elim1Store]: treesize reduction 14, result has 77.4 percent of original size [2021-12-14 13:48:09,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 88 treesize of output 106 [2021-12-14 13:48:10,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:10,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:10,358 INFO L354 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2021-12-14 13:48:10,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 1 [2021-12-14 13:48:10,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 13:48:10,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:10,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:10,968 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:11,105 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:48:11,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 117 treesize of output 257 [2021-12-14 13:48:13,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:13,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 13:48:13,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:13,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:13,555 INFO L354 Elim1Store]: treesize reduction 10, result has 78.3 percent of original size [2021-12-14 13:48:13,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 85 treesize of output 83 [2021-12-14 13:48:14,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:14,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:14,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:14,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:14,637 INFO L354 Elim1Store]: treesize reduction 170, result has 12.8 percent of original size [2021-12-14 13:48:14,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 100 treesize of output 82 [2021-12-14 13:48:14,756 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:14,756 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:14,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:14,831 INFO L354 Elim1Store]: treesize reduction 10, result has 78.3 percent of original size [2021-12-14 13:48:14,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 78 [2021-12-14 13:48:15,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:15,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:15,370 INFO L354 Elim1Store]: treesize reduction 14, result has 77.4 percent of original size [2021-12-14 13:48:15,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 88 treesize of output 106 [2021-12-14 13:48:16,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:16,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:16,454 INFO L354 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2021-12-14 13:48:16,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 1 [2021-12-14 13:48:19,333 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-14 13:48:20,022 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-14 13:48:23,595 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:23,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:23,622 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-12-14 13:48:23,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 61 [2021-12-14 13:48:23,934 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-14 13:48:24,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:24,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:48:24,750 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-12-14 13:48:24,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 61 [2021-12-14 13:48:24,936 WARN L234 Elim1Store]: Array PQE input equivalent to true