./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 ae007674 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-dev-ae00767 [2021-12-27 23:57:55,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-27 23:57:55,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-27 23:57:55,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-27 23:57:55,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-27 23:57:55,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-27 23:57:55,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-27 23:57:55,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-27 23:57:55,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-27 23:57:55,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-27 23:57:55,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-27 23:57:55,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-27 23:57:55,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-27 23:57:55,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-27 23:57:55,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-27 23:57:55,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-27 23:57:55,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-27 23:57:55,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-27 23:57:55,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-27 23:57:55,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-27 23:57:55,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-27 23:57:55,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-27 23:57:55,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-27 23:57:55,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-27 23:57:55,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-27 23:57:55,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-27 23:57:55,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-27 23:57:55,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-27 23:57:55,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-27 23:57:55,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-27 23:57:55,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-27 23:57:55,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-27 23:57:55,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-27 23:57:55,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-27 23:57:55,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-27 23:57:55,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-27 23:57:55,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-27 23:57:55,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-27 23:57:55,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-27 23:57:55,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-27 23:57:55,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-27 23:57:55,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-27 23:57:55,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-27 23:57:55,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-27 23:57:55,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-27 23:57:55,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-27 23:57:55,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-27 23:57:55,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-27 23:57:55,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-27 23:57:55,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-27 23:57:55,546 INFO L138 SettingsManager]: * Use SBE=true [2021-12-27 23:57:55,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-27 23:57:55,546 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-27 23:57:55,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-27 23:57:55,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-27 23:57:55,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-27 23:57:55,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-27 23:57:55,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-27 23:57:55,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-27 23:57:55,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-27 23:57:55,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-27 23:57:55,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-27 23:57:55,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-27 23:57:55,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-27 23:57:55,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-27 23:57:55,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-27 23:57:55,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 23:57:55,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-27 23:57:55,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-27 23:57:55,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-27 23:57:55,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-27 23:57:55,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-27 23:57:55,548 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-27 23:57:55,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-27 23:57:55,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-27 23:57:55,548 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84226515a723f10f2a919f265c45890771224ac18b5dd5f986441c53175929f5 [2021-12-27 23:57:55,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-27 23:57:55,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-27 23:57:55,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-27 23:57:55,903 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-27 23:57:55,903 INFO L275 PluginConnector]: CDTParser initialized [2021-12-27 23:57:55,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-2.i [2021-12-27 23:57:55,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c3f051f/54ff6226d8994870936d83c7205761d7/FLAGe4e427d60 [2021-12-27 23:57:56,424 INFO L306 CDTParser]: Found 1 translation units. [2021-12-27 23:57:56,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2.i [2021-12-27 23:57:56,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c3f051f/54ff6226d8994870936d83c7205761d7/FLAGe4e427d60 [2021-12-27 23:57:56,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c3f051f/54ff6226d8994870936d83c7205761d7 [2021-12-27 23:57:56,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-27 23:57:56,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-27 23:57:56,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-27 23:57:56,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-27 23:57:56,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-27 23:57:56,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:57:56" (1/1) ... [2021-12-27 23:57:56,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8465e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:56, skipping insertion in model container [2021-12-27 23:57:56,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:57:56" (1/1) ... [2021-12-27 23:57:56,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-27 23:57:56,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-27 23:57:56,983 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] [2021-12-27 23:57:57,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 23:57:57,019 INFO L203 MainTranslator]: Completed pre-run [2021-12-27 23:57:57,032 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] [2021-12-27 23:57:57,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 23:57:57,058 INFO L208 MainTranslator]: Completed translation [2021-12-27 23:57:57,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57 WrapperNode [2021-12-27 23:57:57,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-27 23:57:57,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-27 23:57:57,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-27 23:57:57,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-27 23:57:57,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,155 INFO L137 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2021-12-27 23:57:57,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-27 23:57:57,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-27 23:57:57,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-27 23:57:57,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-27 23:57:57,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-27 23:57:57,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-27 23:57:57,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-27 23:57:57,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-27 23:57:57,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (1/1) ... [2021-12-27 23:57:57,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 23:57:57,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:57:57,245 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) [2021-12-27 23:57:57,270 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 [2021-12-27 23:57:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-27 23:57:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-27 23:57:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-27 23:57:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-27 23:57:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-27 23:57:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-27 23:57:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-27 23:57:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-27 23:57:57,356 INFO L234 CfgBuilder]: Building ICFG [2021-12-27 23:57:57,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-27 23:57:57,516 INFO L275 CfgBuilder]: Performing block encoding [2021-12-27 23:57:57,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-27 23:57:57,522 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-27 23:57:57,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:57:57 BoogieIcfgContainer [2021-12-27 23:57:57,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-27 23:57:57,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-27 23:57:57,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-27 23:57:57,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-27 23:57:57,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:57:56" (1/3) ... [2021-12-27 23:57:57,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b43587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:57:57, skipping insertion in model container [2021-12-27 23:57:57,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:57:57" (2/3) ... [2021-12-27 23:57:57,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b43587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:57:57, skipping insertion in model container [2021-12-27 23:57:57,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:57:57" (3/3) ... [2021-12-27 23:57:57,530 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_array-2.i [2021-12-27 23:57:57,535 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-27 23:57:57,535 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-27 23:57:57,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-27 23:57:57,612 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 [2021-12-27 23:57:57,613 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-27 23:57:57,641 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) [2021-12-27 23:57:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-27 23:57:57,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:57:57,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:57:57,651 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:57:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:57:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1741268329, now seen corresponding path program 1 times [2021-12-27 23:57:57,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:57:57,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285829603] [2021-12-27 23:57:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:57:57,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:57:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:57:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-27 23:57:57,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:57:57,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285829603] [2021-12-27 23:57:57,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285829603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:57:57,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 23:57:57,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-27 23:57:57,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291599916] [2021-12-27 23:57:57,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:57:57,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-27 23:57:57,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:57:57,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-27 23:57:57,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-27 23:57:57,911 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) [2021-12-27 23:57:57,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:57:57,926 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2021-12-27 23:57:57,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-27 23:57:57,928 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 [2021-12-27 23:57:57,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:57:57,935 INFO L225 Difference]: With dead ends: 41 [2021-12-27 23:57:57,935 INFO L226 Difference]: Without dead ends: 19 [2021-12-27 23:57:57,938 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 [2021-12-27 23:57:57,942 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 [2021-12-27 23:57:57,943 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] [2021-12-27 23:57:57,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-27 23:57:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-27 23:57:57,971 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) [2021-12-27 23:57:57,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-12-27 23:57:57,973 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 11 [2021-12-27 23:57:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:57:57,974 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-12-27 23:57:57,974 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) [2021-12-27 23:57:57,974 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-12-27 23:57:57,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-27 23:57:57,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:57:57,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:57:57,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-27 23:57:57,977 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:57:57,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:57:57,979 INFO L85 PathProgramCache]: Analyzing trace with hash -217285445, now seen corresponding path program 1 times [2021-12-27 23:57:57,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:57:57,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997609004] [2021-12-27 23:57:57,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:57:57,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:57:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:57:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-27 23:57:58,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:57:58,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997609004] [2021-12-27 23:57:58,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997609004] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:57:58,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 23:57:58,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-27 23:57:58,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559043207] [2021-12-27 23:57:58,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:57:58,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-27 23:57:58,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:57:58,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-27 23:57:58,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-27 23:57:58,166 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) [2021-12-27 23:57:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:57:58,265 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2021-12-27 23:57:58,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-27 23:57:58,267 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 [2021-12-27 23:57:58,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:57:58,268 INFO L225 Difference]: With dead ends: 52 [2021-12-27 23:57:58,269 INFO L226 Difference]: Without dead ends: 33 [2021-12-27 23:57:58,272 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 [2021-12-27 23:57:58,275 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2021-12-27 23:57:58,275 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] [2021-12-27 23:57:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-12-27 23:57:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 22. [2021-12-27 23:57:58,286 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) [2021-12-27 23:57:58,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-27 23:57:58,287 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 11 [2021-12-27 23:57:58,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:57:58,288 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-27 23:57:58,289 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) [2021-12-27 23:57:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-12-27 23:57:58,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-27 23:57:58,292 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:57:58,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:57:58,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-27 23:57:58,294 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:57:58,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:57:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2020776544, now seen corresponding path program 1 times [2021-12-27 23:57:58,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:57:58,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930522868] [2021-12-27 23:57:58,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:57:58,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:57:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:57:59,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-27 23:57:59,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:57:59,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930522868] [2021-12-27 23:57:59,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930522868] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:57:59,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605062946] [2021-12-27 23:57:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:57:59,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:57:59,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:57:59,272 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) [2021-12-27 23:57:59,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-27 23:57:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:57:59,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-27 23:57:59,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:57:59,382 INFO L387 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 [2021-12-27 23:57:59,495 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-27 23:57:59,495 INFO L387 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 [2021-12-27 23:57:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-27 23:57:59,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 23:57:59,857 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:57:59,858 INFO L387 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 195 treesize of output 199 [2021-12-27 23:58:03,532 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:58:03,533 INFO L387 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 130 [2021-12-27 23:58:03,597 INFO L353 Elim1Store]: treesize reduction 7, result has 50.0 percent of original size [2021-12-27 23:58:03,598 INFO L387 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 85 [2021-12-27 23:58:03,614 INFO L353 Elim1Store]: treesize reduction 7, result has 50.0 percent of original size [2021-12-27 23:58:03,615 INFO L387 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 36 [2021-12-27 23:58:03,634 INFO L353 Elim1Store]: treesize reduction 7, result has 50.0 percent of original size [2021-12-27 23:58:03,634 INFO L387 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 [2021-12-27 23:58:03,648 INFO L353 Elim1Store]: treesize reduction 10, result has 28.6 percent of original size [2021-12-27 23:58:03,648 INFO L387 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 52 [2021-12-27 23:58:03,662 INFO L353 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-12-27 23:58:03,662 INFO L387 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 169 treesize of output 1 [2021-12-27 23:58:03,670 INFO L353 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-12-27 23:58:03,671 INFO L387 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 196 treesize of output 1 [2021-12-27 23:58:03,679 INFO L353 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-12-27 23:58:03,680 INFO L387 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 261 treesize of output 1 [2021-12-27 23:58:04,228 INFO L353 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-12-27 23:58:04,229 INFO L387 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 214 treesize of output 156 [2021-12-27 23:58:04,338 INFO L353 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-12-27 23:58:04,338 INFO L387 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 285 treesize of output 209 [2021-12-27 23:58:04,458 INFO L353 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-12-27 23:58:04,459 INFO L387 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 184 treesize of output 135 [2021-12-27 23:58:04,480 INFO L353 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-12-27 23:58:04,481 INFO L387 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 113 treesize of output 82 [2021-12-27 23:58:04,522 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-27 23:58:04,568 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-27 23:58:05,386 INFO L353 Elim1Store]: treesize reduction 40, result has 70.8 percent of original size [2021-12-27 23:58:05,387 INFO L387 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 680 treesize of output 456 [2021-12-27 23:58:06,239 INFO L353 Elim1Store]: treesize reduction 40, result has 70.8 percent of original size [2021-12-27 23:58:06,240 INFO L387 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 434 treesize of output 326 [2021-12-27 23:58:07,446 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:58:07,446 INFO L387 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 569 treesize of output 433 [2021-12-27 23:58:09,964 INFO L353 Elim1Store]: treesize reduction 33, result has 74.4 percent of original size [2021-12-27 23:58:09,964 INFO L387 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 402 treesize of output 311 [2021-12-27 23:58:10,851 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:10,853 INFO L387 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 [2021-12-27 23:58:10,934 INFO L353 Elim1Store]: treesize reduction 33, result has 74.4 percent of original size [2021-12-27 23:58:10,935 INFO L387 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 [2021-12-27 23:58:11,480 INFO L353 Elim1Store]: treesize reduction 108, result has 16.3 percent of original size [2021-12-27 23:58:11,480 INFO L387 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 [2021-12-27 23:58:11,507 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,508 INFO L387 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 [2021-12-27 23:58:11,520 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,520 INFO L387 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 799 treesize of output 1 [2021-12-27 23:58:11,533 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,534 INFO L387 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 [2021-12-27 23:58:11,551 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,551 INFO L387 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 799 treesize of output 1 [2021-12-27 23:58:11,563 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,564 INFO L387 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 628 treesize of output 1 [2021-12-27 23:58:11,593 INFO L353 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-27 23:58:11,593 INFO L387 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 261 treesize of output 1 [2021-12-27 23:58:11,606 INFO L353 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-27 23:58:11,606 INFO L387 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 169 treesize of output 1 [2021-12-27 23:58:11,617 INFO L353 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-27 23:58:11,618 INFO L387 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 [2021-12-27 23:58:11,627 INFO L353 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-27 23:58:11,632 INFO L387 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 [2021-12-27 23:58:11,638 INFO L353 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-27 23:58:11,639 INFO L387 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 [2021-12-27 23:58:11,647 INFO L353 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-12-27 23:58:11,648 INFO L387 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 196 treesize of output 1 [2021-12-27 23:58:11,661 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,662 INFO L387 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 402 treesize of output 1 [2021-12-27 23:58:11,671 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,671 INFO L387 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 [2021-12-27 23:58:11,681 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,681 INFO L387 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 [2021-12-27 23:58:11,689 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,690 INFO L387 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 [2021-12-27 23:58:11,702 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,702 INFO L387 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 799 treesize of output 1 [2021-12-27 23:58:11,712 INFO L353 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-12-27 23:58:11,715 INFO L387 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 628 treesize of output 1 [2021-12-27 23:58:11,725 INFO L353 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-12-27 23:58:11,725 INFO L387 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 [2021-12-27 23:58:11,740 INFO L353 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-12-27 23:58:11,741 INFO L387 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 261 treesize of output 1 [2021-12-27 23:58:11,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-27 23:58:11,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605062946] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-27 23:58:11,809 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-27 23:58:11,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2021-12-27 23:58:11,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460295400] [2021-12-27 23:58:11,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-27 23:58:11,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-27 23:58:11,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:58:11,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-27 23:58:11,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-12-27 23:58:11,815 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 23:58:12,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:58:12,130 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2021-12-27 23:58:12,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-27 23:58:12,131 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-27 23:58:12,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:58:12,132 INFO L225 Difference]: With dead ends: 34 [2021-12-27 23:58:12,132 INFO L226 Difference]: Without dead ends: 32 [2021-12-27 23:58:12,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2021-12-27 23:58:12,133 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 65 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 23:58:12,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 51 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 23:58:12,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-12-27 23:58:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2021-12-27 23:58:12,137 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) [2021-12-27 23:58:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-12-27 23:58:12,137 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 19 [2021-12-27 23:58:12,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:58:12,138 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-12-27 23:58:12,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 23:58:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-12-27 23:58:12,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-27 23:58:12,139 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:58:12,139 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] [2021-12-27 23:58:12,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-27 23:58:12,339 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 [2021-12-27 23:58:12,340 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:58:12,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:58:12,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1709087114, now seen corresponding path program 1 times [2021-12-27 23:58:12,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:58:12,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852152193] [2021-12-27 23:58:12,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:58:12,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:58:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:58:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-27 23:58:12,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:58:12,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852152193] [2021-12-27 23:58:12,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852152193] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:58:12,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920733702] [2021-12-27 23:58:12,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:58:12,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:58:12,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:58:12,612 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) [2021-12-27 23:58:12,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-27 23:58:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:58:12,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-27 23:58:12,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:58:12,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-27 23:58:12,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 23:58:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-27 23:58:12,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920733702] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-27 23:58:12,875 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-27 23:58:12,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2021-12-27 23:58:12,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590653546] [2021-12-27 23:58:12,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-27 23:58:12,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-27 23:58:12,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:58:12,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-27 23:58:12,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-12-27 23:58:12,876 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) [2021-12-27 23:58:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:58:13,117 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-12-27 23:58:13,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-27 23:58:13,118 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 [2021-12-27 23:58:13,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:58:13,119 INFO L225 Difference]: With dead ends: 76 [2021-12-27 23:58:13,119 INFO L226 Difference]: Without dead ends: 45 [2021-12-27 23:58:13,119 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 [2021-12-27 23:58:13,120 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 54 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-27 23:58:13,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 112 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-27 23:58:13,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-27 23:58:13,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2021-12-27 23:58:13,125 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) [2021-12-27 23:58:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-12-27 23:58:13,125 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 23 [2021-12-27 23:58:13,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:58:13,126 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-12-27 23:58:13,126 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) [2021-12-27 23:58:13,126 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-12-27 23:58:13,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-27 23:58:13,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:58:13,126 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] [2021-12-27 23:58:13,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-27 23:58:13,327 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 [2021-12-27 23:58:13,327 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:58:13,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:58:13,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1108233645, now seen corresponding path program 2 times [2021-12-27 23:58:13,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:58:13,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456846670] [2021-12-27 23:58:13,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:58:13,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:58:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:58:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-27 23:58:14,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:58:14,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456846670] [2021-12-27 23:58:14,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456846670] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:58:14,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218374787] [2021-12-27 23:58:14,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-27 23:58:14,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:58:14,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:58:14,908 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) [2021-12-27 23:58:14,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-27 23:58:14,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-27 23:58:14,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-27 23:58:14,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-27 23:58:14,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:58:14,977 INFO L387 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 [2021-12-27 23:58:15,148 INFO L353 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-12-27 23:58:15,149 INFO L387 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 [2021-12-27 23:58:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-27 23:58:15,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 23:58:15,696 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:58:15,696 INFO L387 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 219 treesize of output 223 [2021-12-27 23:58:16,712 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-12-27 23:58:16,714 INFO L387 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 57 treesize of output 48 [2021-12-27 23:58:16,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:16,760 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-12-27 23:58:16,812 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:16,813 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 42 [2021-12-27 23:58:16,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:16,906 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-12-27 23:58:17,718 INFO L353 Elim1Store]: treesize reduction 187, result has 34.8 percent of original size [2021-12-27 23:58:17,718 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 253 treesize of output 316 [2021-12-27 23:58:18,027 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:18,036 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:58:18,037 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 756 treesize of output 730 [2021-12-27 23:58:18,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:18,292 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:58:18,293 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 756 treesize of output 650 [2021-12-27 23:58:19,629 INFO L353 Elim1Store]: treesize reduction 686, result has 27.3 percent of original size [2021-12-27 23:58:19,629 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 436 treesize of output 561 [2021-12-27 23:58:28,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:28,521 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:28,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:28,533 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:28,643 INFO L353 Elim1Store]: treesize reduction 79, result has 59.5 percent of original size [2021-12-27 23:58:28,644 INFO L387 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 218 treesize of output 266 [2021-12-27 23:58:33,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:33,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:33,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:33,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:34,002 INFO L353 Elim1Store]: treesize reduction 116, result has 40.5 percent of original size [2021-12-27 23:58:34,002 INFO L387 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 218 treesize of output 229 [2021-12-27 23:58:35,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:35,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:35,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:35,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:35,593 INFO L353 Elim1Store]: treesize reduction 5, result has 68.8 percent of original size [2021-12-27 23:58:35,593 INFO L387 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 113 [2021-12-27 23:58:35,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:35,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:35,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:35,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:35,962 INFO L353 Elim1Store]: treesize reduction 5, result has 68.8 percent of original size [2021-12-27 23:58:35,962 INFO L387 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 113 [2021-12-27 23:58:37,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:37,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:37,176 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:37,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:37,283 INFO L353 Elim1Store]: treesize reduction 100, result has 48.7 percent of original size [2021-12-27 23:58:37,284 INFO L387 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 218 treesize of output 245 [2021-12-27 23:58:39,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:39,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:39,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:39,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:39,687 INFO L353 Elim1Store]: treesize reduction 5, result has 68.8 percent of original size [2021-12-27 23:58:39,687 INFO L387 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 113 [2021-12-27 23:58:47,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:47,083 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:58:47,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 27 [2021-12-27 23:58:47,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:47,191 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:47,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:47,192 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 11 [2021-12-27 23:58:47,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:47,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:47,377 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:47,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:47,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:47,449 INFO L353 Elim1Store]: treesize reduction 81, result has 53.2 percent of original size [2021-12-27 23:58:47,449 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 253 treesize of output 256 [2021-12-27 23:58:50,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,019 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,022 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,023 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,023 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:50,067 INFO L353 Elim1Store]: treesize reduction 75, result has 32.4 percent of original size [2021-12-27 23:58:50,067 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 253 treesize of output 200 [2021-12-27 23:58:51,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,296 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:51,298 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 11 [2021-12-27 23:58:51,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,368 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:51,402 INFO L353 Elim1Store]: treesize reduction 108, result has 15.6 percent of original size [2021-12-27 23:58:51,403 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 253 treesize of output 184 [2021-12-27 23:58:52,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,707 INFO L353 Elim1Store]: treesize reduction 70, result has 9.1 percent of original size [2021-12-27 23:58:52,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 232 treesize of output 167 [2021-12-27 23:58:52,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:52,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,812 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,812 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:52,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:52,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:52,815 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 160 [2021-12-27 23:58:52,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:52,943 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2021-12-27 23:58:52,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:52,998 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2021-12-27 23:58:53,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:53,170 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2021-12-27 23:58:53,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:53,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:53,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:53,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:58:53,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:53,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:58:53,263 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 160