./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/heap-data/calendar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/heap-data/calendar.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 fe08ef78ee5c945bc38e9e915e26405aefe9ffb2d4911c91347e07e6a879dcd5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 02:20:52,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 02:20:52,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 02:20:53,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 02:20:53,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 02:20:53,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 02:20:53,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 02:20:53,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 02:20:53,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 02:20:53,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 02:20:53,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 02:20:53,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 02:20:53,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 02:20:53,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 02:20:53,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 02:20:53,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 02:20:53,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 02:20:53,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 02:20:53,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 02:20:53,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 02:20:53,025 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 02:20:53,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 02:20:53,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 02:20:53,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 02:20:53,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 02:20:53,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 02:20:53,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 02:20:53,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 02:20:53,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 02:20:53,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 02:20:53,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 02:20:53,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 02:20:53,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 02:20:53,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 02:20:53,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 02:20:53,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 02:20:53,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 02:20:53,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 02:20:53,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 02:20:53,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 02:20:53,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 02:20:53,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 02:20:53,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 02:20:53,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 02:20:53,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 02:20:53,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 02:20:53,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 02:20:53,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 02:20:53,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 02:20:53,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 02:20:53,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 02:20:53,070 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 02:20:53,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 02:20:53,071 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 02:20:53,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 02:20:53,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 02:20:53,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 02:20:53,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 02:20:53,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 02:20:53,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 02:20:53,072 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 02:20:53,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 02:20:53,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 02:20:53,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 02:20:53,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 02:20:53,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 02:20:53,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 02:20:53,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 02:20:53,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 02:20:53,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 02:20:53,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 02:20:53,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 02:20:53,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 02:20:53,074 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 02:20:53,074 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 02:20:53,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 02:20:53,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe08ef78ee5c945bc38e9e915e26405aefe9ffb2d4911c91347e07e6a879dcd5 [2022-07-21 02:20:53,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 02:20:53,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 02:20:53,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 02:20:53,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 02:20:53,353 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 02:20:53,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-data/calendar.i [2022-07-21 02:20:53,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2958416f/b37a06adcf31495ea4b169f0101c447d/FLAG0b40b53fa [2022-07-21 02:20:53,815 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 02:20:53,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/calendar.i [2022-07-21 02:20:53,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2958416f/b37a06adcf31495ea4b169f0101c447d/FLAG0b40b53fa [2022-07-21 02:20:53,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2958416f/b37a06adcf31495ea4b169f0101c447d [2022-07-21 02:20:53,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 02:20:53,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 02:20:53,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 02:20:53,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 02:20:53,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 02:20:53,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:20:53" (1/1) ... [2022-07-21 02:20:53,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e55d20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:53, skipping insertion in model container [2022-07-21 02:20:53,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:20:53" (1/1) ... [2022-07-21 02:20:53,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 02:20:53,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 02:20:54,074 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/heap-data/calendar.i[23742,23755] [2022-07-21 02:20:54,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 02:20:54,086 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 02:20:54,132 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/heap-data/calendar.i[23742,23755] [2022-07-21 02:20:54,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 02:20:54,157 INFO L208 MainTranslator]: Completed translation [2022-07-21 02:20:54,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54 WrapperNode [2022-07-21 02:20:54,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 02:20:54,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 02:20:54,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 02:20:54,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 02:20:54,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,190 INFO L137 Inliner]: procedures = 121, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-07-21 02:20:54,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 02:20:54,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 02:20:54,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 02:20:54,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 02:20:54,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 02:20:54,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 02:20:54,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 02:20:54,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 02:20:54,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (1/1) ... [2022-07-21 02:20:54,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 02:20:54,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:20:54,254 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) [2022-07-21 02:20:54,281 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 [2022-07-21 02:20:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 02:20:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 02:20:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 02:20:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 02:20:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 02:20:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 02:20:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 02:20:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 02:20:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 02:20:54,368 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 02:20:54,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 02:20:54,518 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 02:20:54,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 02:20:54,522 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 02:20:54,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:20:54 BoogieIcfgContainer [2022-07-21 02:20:54,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 02:20:54,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 02:20:54,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 02:20:54,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 02:20:54,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:20:53" (1/3) ... [2022-07-21 02:20:54,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725572f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:20:54, skipping insertion in model container [2022-07-21 02:20:54,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:20:54" (2/3) ... [2022-07-21 02:20:54,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725572f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:20:54, skipping insertion in model container [2022-07-21 02:20:54,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:20:54" (3/3) ... [2022-07-21 02:20:54,537 INFO L111 eAbstractionObserver]: Analyzing ICFG calendar.i [2022-07-21 02:20:54,546 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 02:20:54,546 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 02:20:54,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 02:20:54,611 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ac6b569, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@15f2614b [2022-07-21 02:20:54,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 02:20:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 02:20:54,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:54,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:54,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:54,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:54,627 INFO L85 PathProgramCache]: Analyzing trace with hash 399551724, now seen corresponding path program 1 times [2022-07-21 02:20:54,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:54,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202414792] [2022-07-21 02:20:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:54,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:20:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:54,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:20:54,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202414792] [2022-07-21 02:20:54,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202414792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 02:20:54,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 02:20:54,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 02:20:54,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060574254] [2022-07-21 02:20:54,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 02:20:54,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 02:20:54,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:20:54,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 02:20:54,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 02:20:54,801 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:54,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:20:54,813 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2022-07-21 02:20:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 02:20:54,815 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-21 02:20:54,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:20:54,820 INFO L225 Difference]: With dead ends: 35 [2022-07-21 02:20:54,820 INFO L226 Difference]: Without dead ends: 18 [2022-07-21 02:20:54,822 INFO L412 NwaCegarLoop]: 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 [2022-07-21 02:20:54,826 INFO L413 NwaCegarLoop]: 27 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, 27 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 [2022-07-21 02:20:54,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 02:20:54,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-21 02:20:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-21 02:20:54,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:54,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2022-07-21 02:20:54,850 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 10 [2022-07-21 02:20:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:20:54,850 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-07-21 02:20:54,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:54,851 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-07-21 02:20:54,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 02:20:54,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:54,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:54,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 02:20:54,853 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:54,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:54,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1946762309, now seen corresponding path program 1 times [2022-07-21 02:20:54,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:54,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939529549] [2022-07-21 02:20:54,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:54,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:20:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:54,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:54,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:20:54,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939529549] [2022-07-21 02:20:54,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939529549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 02:20:54,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 02:20:54,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 02:20:54,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447842124] [2022-07-21 02:20:54,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 02:20:54,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 02:20:54,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:20:54,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 02:20:54,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 02:20:54,945 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:54,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:20:54,995 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2022-07-21 02:20:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 02:20:54,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-21 02:20:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:20:54,997 INFO L225 Difference]: With dead ends: 35 [2022-07-21 02:20:54,997 INFO L226 Difference]: Without dead ends: 23 [2022-07-21 02:20:55,001 INFO L412 NwaCegarLoop]: 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 [2022-07-21 02:20:55,003 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 02:20:55,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 59 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 02:20:55,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-21 02:20:55,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-21 02:20:55,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2022-07-21 02:20:55,027 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 12 [2022-07-21 02:20:55,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:20:55,027 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2022-07-21 02:20:55,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-07-21 02:20:55,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 02:20:55,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:55,028 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:55,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 02:20:55,029 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:55,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:55,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1070818203, now seen corresponding path program 1 times [2022-07-21 02:20:55,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:55,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9210024] [2022-07-21 02:20:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:55,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:20:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:55,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:55,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:20:55,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9210024] [2022-07-21 02:20:55,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9210024] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 02:20:55,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 02:20:55,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 02:20:55,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943369184] [2022-07-21 02:20:55,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 02:20:55,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 02:20:55,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:20:55,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 02:20:55,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 02:20:55,186 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:20:55,506 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2022-07-21 02:20:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 02:20:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-21 02:20:55,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:20:55,508 INFO L225 Difference]: With dead ends: 78 [2022-07-21 02:20:55,508 INFO L226 Difference]: Without dead ends: 68 [2022-07-21 02:20:55,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2022-07-21 02:20:55,509 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 132 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 02:20:55,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 114 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 02:20:55,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-07-21 02:20:55,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 27. [2022-07-21 02:20:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-07-21 02:20:55,515 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 17 [2022-07-21 02:20:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:20:55,515 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-07-21 02:20:55,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-07-21 02:20:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 02:20:55,516 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:55,516 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:55,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 02:20:55,516 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:55,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:55,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1737463723, now seen corresponding path program 1 times [2022-07-21 02:20:55,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:55,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304372602] [2022-07-21 02:20:55,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:55,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:20:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 02:20:55,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:20:55,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304372602] [2022-07-21 02:20:55,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304372602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 02:20:55,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 02:20:55,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 02:20:55,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682975123] [2022-07-21 02:20:55,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 02:20:55,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 02:20:55,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:20:55,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 02:20:55,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 02:20:55,573 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:20:55,612 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2022-07-21 02:20:55,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 02:20:55,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-21 02:20:55,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:20:55,613 INFO L225 Difference]: With dead ends: 50 [2022-07-21 02:20:55,613 INFO L226 Difference]: Without dead ends: 38 [2022-07-21 02:20:55,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-21 02:20:55,614 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 02:20:55,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 53 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 02:20:55,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-07-21 02:20:55,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2022-07-21 02:20:55,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2022-07-21 02:20:55,619 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 19 [2022-07-21 02:20:55,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:20:55,619 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2022-07-21 02:20:55,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-07-21 02:20:55,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 02:20:55,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:55,620 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:55,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 02:20:55,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:55,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:55,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1737523305, now seen corresponding path program 1 times [2022-07-21 02:20:55,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:55,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36223912] [2022-07-21 02:20:55,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:55,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:20:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 02:20:55,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:20:55,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36223912] [2022-07-21 02:20:55,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36223912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 02:20:55,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 02:20:55,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 02:20:55,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260074940] [2022-07-21 02:20:55,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 02:20:55,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 02:20:55,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:20:55,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 02:20:55,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 02:20:55,651 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:20:55,663 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2022-07-21 02:20:55,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 02:20:55,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-21 02:20:55,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:20:55,664 INFO L225 Difference]: With dead ends: 34 [2022-07-21 02:20:55,665 INFO L226 Difference]: Without dead ends: 32 [2022-07-21 02:20:55,665 INFO L412 NwaCegarLoop]: 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 [2022-07-21 02:20:55,666 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 02:20:55,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 54 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 02:20:55,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-21 02:20:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-07-21 02:20:55,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2022-07-21 02:20:55,669 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 19 [2022-07-21 02:20:55,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:20:55,670 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2022-07-21 02:20:55,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,670 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2022-07-21 02:20:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 02:20:55,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:55,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:55,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 02:20:55,671 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:55,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:55,671 INFO L85 PathProgramCache]: Analyzing trace with hash -782496211, now seen corresponding path program 1 times [2022-07-21 02:20:55,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:55,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010601720] [2022-07-21 02:20:55,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:55,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:20:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:55,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:20:55,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010601720] [2022-07-21 02:20:55,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010601720] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 02:20:55,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 02:20:55,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 02:20:55,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237769009] [2022-07-21 02:20:55,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 02:20:55,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 02:20:55,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:20:55,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 02:20:55,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 02:20:55,757 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:20:55,984 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2022-07-21 02:20:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 02:20:55,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 [2022-07-21 02:20:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:20:55,985 INFO L225 Difference]: With dead ends: 76 [2022-07-21 02:20:55,985 INFO L226 Difference]: Without dead ends: 74 [2022-07-21 02:20:55,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-07-21 02:20:55,986 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 82 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 02:20:55,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 108 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 02:20:55,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-21 02:20:55,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 35. [2022-07-21 02:20:55,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2022-07-21 02:20:55,990 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 19 [2022-07-21 02:20:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:20:55,991 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-07-21 02:20:55,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-07-21 02:20:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 02:20:55,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:55,992 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:55,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 02:20:55,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:55,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:55,993 INFO L85 PathProgramCache]: Analyzing trace with hash 830966801, now seen corresponding path program 1 times [2022-07-21 02:20:55,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:55,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660134302] [2022-07-21 02:20:55,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:55,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:20:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:56,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:20:56,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660134302] [2022-07-21 02:20:56,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660134302] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:20:56,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037967504] [2022-07-21 02:20:56,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:56,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:20:56,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:20:56,054 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) [2022-07-21 02:20:56,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 02:20:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:56,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-21 02:20:56,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:20:56,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:20:56,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:20:56,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-07-21 02:20:56,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-07-21 02:20:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:56,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:20:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:56,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037967504] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:20:56,429 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:20:56,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-07-21 02:20:56,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942723953] [2022-07-21 02:20:56,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:20:56,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 02:20:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:20:56,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 02:20:56,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 02:20:56,432 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:20:56,510 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2022-07-21 02:20:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 02:20:56,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 25 [2022-07-21 02:20:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:20:56,511 INFO L225 Difference]: With dead ends: 68 [2022-07-21 02:20:56,512 INFO L226 Difference]: Without dead ends: 40 [2022-07-21 02:20:56,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-21 02:20:56,513 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 32 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 02:20:56,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 125 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 02:20:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-21 02:20:56,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-07-21 02:20:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:56,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2022-07-21 02:20:56,528 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 25 [2022-07-21 02:20:56,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:20:56,529 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2022-07-21 02:20:56,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:56,529 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2022-07-21 02:20:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-21 02:20:56,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:56,530 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:56,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 02:20:56,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:20:56,747 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:56,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1524144039, now seen corresponding path program 2 times [2022-07-21 02:20:56,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:56,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42876119] [2022-07-21 02:20:56,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:56,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:20:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:20:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:56,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:20:56,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42876119] [2022-07-21 02:20:56,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42876119] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:20:56,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370711762] [2022-07-21 02:20:56,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 02:20:56,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:20:56,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:20:56,965 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) [2022-07-21 02:20:57,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 02:20:57,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 02:20:57,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:20:57,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-21 02:20:57,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:20:57,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:20:57,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:20:57,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:20:57,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:20:57,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:20:57,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:20:57,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:20:57,183 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-21 02:20:57,183 INFO L390 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 15 treesize of output 15 [2022-07-21 02:20:57,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:20:57,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-07-21 02:20:57,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 25 [2022-07-21 02:20:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:20:57,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:20:57,576 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_192 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_10| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_10| v_ArrVal_192) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= 3 (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 8)))) (not (= (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_10|) 0))))) is different from false [2022-07-21 02:20:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-07-21 02:20:57,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370711762] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:20:57,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:20:57,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 23 [2022-07-21 02:20:57,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095980108] [2022-07-21 02:20:57,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:20:57,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-21 02:20:57,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:20:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-21 02:20:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=405, Unknown=1, NotChecked=40, Total=506 [2022-07-21 02:20:57,627 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:59,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:20:59,771 INFO L93 Difference]: Finished difference Result 136 states and 165 transitions. [2022-07-21 02:20:59,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-07-21 02:20:59,771 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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 30 [2022-07-21 02:20:59,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:20:59,772 INFO L225 Difference]: With dead ends: 136 [2022-07-21 02:20:59,772 INFO L226 Difference]: Without dead ends: 121 [2022-07-21 02:20:59,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=847, Invalid=2236, Unknown=1, NotChecked=108, Total=3192 [2022-07-21 02:20:59,773 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 568 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:20:59,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 302 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 221 Invalid, 0 Unknown, 72 Unchecked, 0.2s Time] [2022-07-21 02:20:59,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-21 02:20:59,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 48. [2022-07-21 02:20:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.297872340425532) internal successors, (61), 47 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:59,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-07-21 02:20:59,778 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 30 [2022-07-21 02:20:59,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:20:59,778 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-07-21 02:20:59,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:20:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-07-21 02:20:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-21 02:20:59,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:20:59,779 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:20:59,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 02:20:59,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-07-21 02:20:59,992 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:20:59,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:20:59,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1895186671, now seen corresponding path program 1 times [2022-07-21 02:20:59,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:20:59,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656286340] [2022-07-21 02:20:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:20:59,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:00,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:00,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656286340] [2022-07-21 02:21:00,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656286340] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:00,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423665530] [2022-07-21 02:21:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:00,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:00,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:00,143 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) [2022-07-21 02:21:00,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 02:21:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:00,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 52 conjunts are in the unsatisfiable core [2022-07-21 02:21:00,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:00,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:00,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:21:00,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:00,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:00,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:00,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:00,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:21:00,297 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-21 02:21:00,297 INFO L390 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 15 treesize of output 15 [2022-07-21 02:21:00,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 25 [2022-07-21 02:21:00,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-21 02:21:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:00,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:00,562 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_272 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_13| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_13| v_ArrVal_272) |c_ULTIMATE.start_main_~l~0#1.base|))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_13|) 0)) (not (= (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 0)) (not (= 2 (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 8))))))) is different from false [2022-07-21 02:21:00,596 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-07-21 02:21:00,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423665530] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:00,596 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:00,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 18 [2022-07-21 02:21:00,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808301524] [2022-07-21 02:21:00,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:00,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 02:21:00,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:00,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 02:21:00,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=227, Unknown=1, NotChecked=30, Total=306 [2022-07-21 02:21:00,598 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:01,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:01,320 INFO L93 Difference]: Finished difference Result 67 states and 82 transitions. [2022-07-21 02:21:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 02:21:01,321 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 18 states have internal predecessors, (66), 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 32 [2022-07-21 02:21:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:01,321 INFO L225 Difference]: With dead ends: 67 [2022-07-21 02:21:01,321 INFO L226 Difference]: Without dead ends: 65 [2022-07-21 02:21:01,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=343, Invalid=850, Unknown=1, NotChecked=66, Total=1260 [2022-07-21 02:21:01,322 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 122 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:01,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 259 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 159 Invalid, 0 Unknown, 43 Unchecked, 0.2s Time] [2022-07-21 02:21:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-21 02:21:01,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 51. [2022-07-21 02:21:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:01,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2022-07-21 02:21:01,326 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 32 [2022-07-21 02:21:01,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:01,327 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2022-07-21 02:21:01,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:01,327 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2022-07-21 02:21:01,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 02:21:01,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:01,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:01,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:01,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:01,528 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:01,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:01,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1135420755, now seen corresponding path program 3 times [2022-07-21 02:21:01,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:01,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885551528] [2022-07-21 02:21:01,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:01,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:01,658 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:01,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:01,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885551528] [2022-07-21 02:21:01,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885551528] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:01,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635263416] [2022-07-21 02:21:01,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-21 02:21:01,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:01,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:01,660 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:01,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 02:21:01,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-21 02:21:01,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:01,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 54 conjunts are in the unsatisfiable core [2022-07-21 02:21:01,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:01,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:01,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:01,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:01,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:01,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:01,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:01,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:01,819 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-21 02:21:01,820 INFO L390 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 15 treesize of output 15 [2022-07-21 02:21:01,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:21:02,028 INFO L356 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-07-21 02:21:02,028 INFO L390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 35 [2022-07-21 02:21:02,037 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-21 02:21:02,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-07-21 02:21:02,042 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:02,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:02,104 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,112 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,133 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_359 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_17| Int) (v_ArrVal_357 (Array Int Int))) (or (and (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_17| (store v_ArrVal_359 0 |c_ULTIMATE.start_main_~l~0#1.base|)) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) 0) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_17| (store v_ArrVal_357 0 |c_ULTIMATE.start_main_~l~0#1.offset|)) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_17|) 0)))) is different from false [2022-07-21 02:21:02,140 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,146 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,167 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,173 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,193 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,199 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,217 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,223 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,250 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2022-07-21 02:21:02,254 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:02,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:02,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 8 [2022-07-21 02:21:02,259 INFO L390 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 6 treesize of output 4 [2022-07-21 02:21:02,263 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:02,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2022-07-21 02:21:02,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:02,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 8 [2022-07-21 02:21:02,276 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-21 02:21:02,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635263416] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:02,277 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:02,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 16 [2022-07-21 02:21:02,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18594481] [2022-07-21 02:21:02,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:02,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 02:21:02,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:02,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 02:21:02,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=173, Unknown=1, NotChecked=26, Total=240 [2022-07-21 02:21:02,278 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:02,421 INFO L93 Difference]: Finished difference Result 102 states and 127 transitions. [2022-07-21 02:21:02,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 02:21:02,422 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 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 38 [2022-07-21 02:21:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:02,422 INFO L225 Difference]: With dead ends: 102 [2022-07-21 02:21:02,422 INFO L226 Difference]: Without dead ends: 78 [2022-07-21 02:21:02,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=249, Unknown=1, NotChecked=32, Total=342 [2022-07-21 02:21:02,423 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 61 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:02,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 293 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 0 Unknown, 81 Unchecked, 0.1s Time] [2022-07-21 02:21:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-07-21 02:21:02,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2022-07-21 02:21:02,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2022-07-21 02:21:02,429 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 38 [2022-07-21 02:21:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:02,429 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-07-21 02:21:02,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2022-07-21 02:21:02,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 02:21:02,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:02,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:02,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:02,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:02,647 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:02,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:02,648 INFO L85 PathProgramCache]: Analyzing trace with hash 941641751, now seen corresponding path program 1 times [2022-07-21 02:21:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:02,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800073149] [2022-07-21 02:21:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:02,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:02,780 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:02,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:02,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800073149] [2022-07-21 02:21:02,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800073149] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:02,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625666637] [2022-07-21 02:21:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:02,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:02,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:02,782 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:02,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 02:21:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:02,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 54 conjunts are in the unsatisfiable core [2022-07-21 02:21:02,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:02,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:02,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:02,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:02,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:02,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:02,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:02,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:02,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:02,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:02,933 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-21 02:21:02,933 INFO L390 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 15 treesize of output 15 [2022-07-21 02:21:03,139 INFO L356 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-07-21 02:21:03,139 INFO L390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 35 [2022-07-21 02:21:03,145 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-21 02:21:03,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-07-21 02:21:03,149 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:03,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:03,204 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,210 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,226 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_441 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_22| Int) (v_ArrVal_444 (Array Int Int))) (or (and (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_22| (store v_ArrVal_444 0 |c_ULTIMATE.start_main_~l~0#1.base|)) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) 0) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_22| (store v_ArrVal_441 0 |c_ULTIMATE.start_main_~l~0#1.offset|)) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_22|) 0)))) is different from false [2022-07-21 02:21:03,232 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,237 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,255 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,260 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,277 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,283 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,300 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,306 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,326 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2022-07-21 02:21:03,329 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2022-07-21 02:21:03,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:03,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 8 [2022-07-21 02:21:03,334 INFO L390 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 6 treesize of output 4 [2022-07-21 02:21:03,338 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:03,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2022-07-21 02:21:03,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:03,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 8 [2022-07-21 02:21:03,350 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-21 02:21:03,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625666637] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:03,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:03,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 16 [2022-07-21 02:21:03,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856565011] [2022-07-21 02:21:03,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:03,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 02:21:03,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:03,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 02:21:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=173, Unknown=1, NotChecked=26, Total=240 [2022-07-21 02:21:03,352 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:03,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:03,534 INFO L93 Difference]: Finished difference Result 97 states and 120 transitions. [2022-07-21 02:21:03,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 02:21:03,534 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 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 38 [2022-07-21 02:21:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:03,535 INFO L225 Difference]: With dead ends: 97 [2022-07-21 02:21:03,535 INFO L226 Difference]: Without dead ends: 61 [2022-07-21 02:21:03,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=276, Unknown=1, NotChecked=34, Total=380 [2022-07-21 02:21:03,535 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 64 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:03,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 328 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 86 Unchecked, 0.1s Time] [2022-07-21 02:21:03,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-21 02:21:03,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2022-07-21 02:21:03,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.309090909090909) internal successors, (72), 55 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:03,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2022-07-21 02:21:03,539 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 38 [2022-07-21 02:21:03,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:03,540 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2022-07-21 02:21:03,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:03,540 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2022-07-21 02:21:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-21 02:21:03,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:03,541 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:03,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:03,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-21 02:21:03,751 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:03,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:03,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1704598909, now seen corresponding path program 4 times [2022-07-21 02:21:03,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:03,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172782242] [2022-07-21 02:21:03,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:03,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:04,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:04,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172782242] [2022-07-21 02:21:04,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172782242] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:04,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095030694] [2022-07-21 02:21:04,083 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-21 02:21:04,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:04,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:04,084 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:04,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 02:21:04,173 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-21 02:21:04,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:04,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 80 conjunts are in the unsatisfiable core [2022-07-21 02:21:04,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:04,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:04,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:04,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:04,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:21:04,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:04,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:04,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:04,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:04,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:21:04,253 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:04,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:04,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:04,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:04,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:04,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:21:04,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:04,366 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-21 02:21:04,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:21:04,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:21:04,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:04,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:21:04,878 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-21 02:21:04,879 INFO L390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2022-07-21 02:21:04,887 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-21 02:21:04,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-07-21 02:21:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:04,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:05,136 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:05,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2022-07-21 02:21:05,140 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:05,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2022-07-21 02:21:05,151 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_33 (Array Int Int)) (v_arrayElimArr_34 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_27| Int) (v_ArrVal_570 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_27| v_ArrVal_570) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_27| v_arrayElimArr_33) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_27| v_arrayElimArr_34) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_34 0))) (not (= (select v_arrayElimArr_33 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_27|) 0))))) is different from false [2022-07-21 02:21:05,231 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:05,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 107 [2022-07-21 02:21:05,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:05,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 101 treesize of output 83 [2022-07-21 02:21:05,238 INFO L390 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 98 treesize of output 78 [2022-07-21 02:21:05,254 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:05,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 55 [2022-07-21 02:21:05,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:05,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 49 treesize of output 37 [2022-07-21 02:21:05,341 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:21:05,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 1 [2022-07-21 02:21:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-21 02:21:05,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095030694] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:05,343 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:05,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 30 [2022-07-21 02:21:05,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302222091] [2022-07-21 02:21:05,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:05,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-21 02:21:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:05,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-21 02:21:05,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=728, Unknown=7, NotChecked=54, Total=870 [2022-07-21 02:21:05,345 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 30 states, 30 states have (on average 3.6666666666666665) internal successors, (110), 30 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:08,147 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2022-07-21 02:21:08,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-21 02:21:08,147 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.6666666666666665) internal successors, (110), 30 states have internal predecessors, (110), 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 43 [2022-07-21 02:21:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:08,150 INFO L225 Difference]: With dead ends: 120 [2022-07-21 02:21:08,150 INFO L226 Difference]: Without dead ends: 105 [2022-07-21 02:21:08,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 76 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=714, Invalid=2705, Unknown=7, NotChecked=114, Total=3540 [2022-07-21 02:21:08,151 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 316 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:08,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 665 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 385 Invalid, 0 Unknown, 115 Unchecked, 0.4s Time] [2022-07-21 02:21:08,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-21 02:21:08,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 64. [2022-07-21 02:21:08,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2022-07-21 02:21:08,160 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 43 [2022-07-21 02:21:08,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:08,160 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2022-07-21 02:21:08,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.6666666666666665) internal successors, (110), 30 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:08,161 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2022-07-21 02:21:08,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-21 02:21:08,161 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:08,162 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:08,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:08,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:08,375 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:08,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:08,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1510819905, now seen corresponding path program 2 times [2022-07-21 02:21:08,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:08,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823893966] [2022-07-21 02:21:08,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:08,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 13 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:08,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:08,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823893966] [2022-07-21 02:21:08,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823893966] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:08,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462205356] [2022-07-21 02:21:08,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 02:21:08,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:08,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:08,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:08,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 02:21:08,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 02:21:08,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:08,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 78 conjunts are in the unsatisfiable core [2022-07-21 02:21:08,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:08,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:08,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:08,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:08,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:21:08,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:08,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:08,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:08,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:08,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:21:08,790 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:08,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:08,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:08,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:08,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:08,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:21:08,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:08,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:21:08,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:08,881 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-21 02:21:08,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:21:08,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:08,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:21:09,331 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-21 02:21:09,333 INFO L390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2022-07-21 02:21:09,344 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-21 02:21:09,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-07-21 02:21:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:09,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:09,546 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:09,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2022-07-21 02:21:09,549 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:09,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2022-07-21 02:21:09,558 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_699 (Array Int Int)) (v_arrayElimArr_40 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_32| Int) (v_arrayElimArr_41 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_32| v_ArrVal_699) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_32| v_arrayElimArr_40) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_32| v_arrayElimArr_41) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_32|) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_41 0))) (not (= 1 (select .cse0 (+ .cse1 4)))) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_40 0)))))) is different from false [2022-07-21 02:21:09,623 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:09,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 107 [2022-07-21 02:21:09,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:09,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 101 treesize of output 83 [2022-07-21 02:21:09,630 INFO L390 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 98 treesize of output 78 [2022-07-21 02:21:09,634 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:09,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 55 [2022-07-21 02:21:09,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:09,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 49 treesize of output 37 [2022-07-21 02:21:09,721 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-21 02:21:09,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462205356] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:09,722 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:09,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 29 [2022-07-21 02:21:09,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119655186] [2022-07-21 02:21:09,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:09,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-21 02:21:09,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:09,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-21 02:21:09,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=680, Unknown=3, NotChecked=52, Total=812 [2022-07-21 02:21:09,724 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 29 states, 29 states have (on average 3.793103448275862) internal successors, (110), 29 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:14,111 INFO L93 Difference]: Finished difference Result 114 states and 139 transitions. [2022-07-21 02:21:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-21 02:21:14,111 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.793103448275862) internal successors, (110), 29 states have internal predecessors, (110), 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 43 [2022-07-21 02:21:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:14,112 INFO L225 Difference]: With dead ends: 114 [2022-07-21 02:21:14,112 INFO L226 Difference]: Without dead ends: 99 [2022-07-21 02:21:14,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 76 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=613, Invalid=2040, Unknown=3, NotChecked=100, Total=2756 [2022-07-21 02:21:14,113 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 302 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:14,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 475 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 245 Invalid, 0 Unknown, 82 Unchecked, 0.2s Time] [2022-07-21 02:21:14,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-07-21 02:21:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 64. [2022-07-21 02:21:14,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:14,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2022-07-21 02:21:14,118 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 43 [2022-07-21 02:21:14,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:14,118 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2022-07-21 02:21:14,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.793103448275862) internal successors, (110), 29 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:14,118 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2022-07-21 02:21:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-21 02:21:14,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:14,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:14,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:14,319 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash -781342395, now seen corresponding path program 2 times [2022-07-21 02:21:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:14,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729243238] [2022-07-21 02:21:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 11 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:14,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:14,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729243238] [2022-07-21 02:21:14,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729243238] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:14,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485265051] [2022-07-21 02:21:14,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 02:21:14,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:14,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:14,630 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:14,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 02:21:14,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 02:21:14,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:14,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-21 02:21:14,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:14,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:14,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:14,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:14,752 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:21:14,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:14,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:14,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:14,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:14,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:21:14,826 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:14,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:14,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:14,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:14,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:14,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:21:14,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:14,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:21:14,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:14,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:21:14,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:14,930 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-21 02:21:14,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:21:15,375 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-21 02:21:15,375 INFO L390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2022-07-21 02:21:15,381 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-21 02:21:15,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-07-21 02:21:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:15,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:15,563 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:15,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2022-07-21 02:21:15,568 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:15,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2022-07-21 02:21:15,579 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_46 (Array Int Int)) (v_arrayElimArr_47 (Array Int Int)) (v_ArrVal_827 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_37| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_37| v_ArrVal_827) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_37| v_arrayElimArr_46) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_37| v_arrayElimArr_47) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_47 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_37|) 0)) (not (= (select v_arrayElimArr_46 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= 2 (select .cse0 (+ 8 .cse1))))))) is different from false [2022-07-21 02:21:15,633 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:15,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2022-07-21 02:21:15,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:15,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 115 treesize of output 91 [2022-07-21 02:21:15,640 INFO L390 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 106 treesize of output 86 [2022-07-21 02:21:15,644 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:15,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2022-07-21 02:21:15,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:15,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 55 treesize of output 37 [2022-07-21 02:21:15,717 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:21:15,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 1 [2022-07-21 02:21:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-07-21 02:21:15,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485265051] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:15,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:15,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 25 [2022-07-21 02:21:15,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483610529] [2022-07-21 02:21:15,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:15,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-21 02:21:15,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:15,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-21 02:21:15,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=483, Unknown=3, NotChecked=44, Total=600 [2022-07-21 02:21:15,721 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 25 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:23,212 INFO L93 Difference]: Finished difference Result 594 states and 712 transitions. [2022-07-21 02:21:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-07-21 02:21:23,212 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-21 02:21:23,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:23,214 INFO L225 Difference]: With dead ends: 594 [2022-07-21 02:21:23,214 INFO L226 Difference]: Without dead ends: 592 [2022-07-21 02:21:23,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 88 SyntacticMatches, 5 SemanticMatches, 199 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17240 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=4813, Invalid=34988, Unknown=3, NotChecked=396, Total=40200 [2022-07-21 02:21:23,221 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 522 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 412 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:23,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 523 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 407 Invalid, 0 Unknown, 412 Unchecked, 0.5s Time] [2022-07-21 02:21:23,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-07-21 02:21:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 132. [2022-07-21 02:21:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.3587786259541985) internal successors, (178), 131 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:23,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 178 transitions. [2022-07-21 02:21:23,241 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 178 transitions. Word has length 45 [2022-07-21 02:21:23,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:23,241 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 178 transitions. [2022-07-21 02:21:23,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 178 transitions. [2022-07-21 02:21:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-21 02:21:23,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:23,242 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:23,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:23,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-21 02:21:23,461 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:23,462 INFO L85 PathProgramCache]: Analyzing trace with hash 993328381, now seen corresponding path program 1 times [2022-07-21 02:21:23,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:23,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805494197] [2022-07-21 02:21:23,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:23,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 02:21:23,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:23,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805494197] [2022-07-21 02:21:23,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805494197] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:23,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876272847] [2022-07-21 02:21:23,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:23,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:23,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:23,749 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:23,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 02:21:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:23,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 80 conjunts are in the unsatisfiable core [2022-07-21 02:21:23,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:23,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:23,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:23,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:23,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:21:23,859 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:23,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:23,910 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:23,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:23,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:21:23,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:23,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:23,983 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:23,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:23,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2022-07-21 02:21:23,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:23,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:21:23,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:23,997 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-21 02:21:23,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:21:24,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:24,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:21:24,423 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-21 02:21:24,424 INFO L390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2022-07-21 02:21:24,428 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-21 02:21:24,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-07-21 02:21:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 02:21:24,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:24,582 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:24,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2022-07-21 02:21:24,585 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:24,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2022-07-21 02:21:24,594 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_54 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_42| Int) (v_arrayElimArr_53 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_42| v_ArrVal_952) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_42| v_arrayElimArr_53) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_42| v_arrayElimArr_54) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select v_arrayElimArr_53 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_54 0))) (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_42|) 0)) (not (= 2 (select .cse0 (+ .cse1 8))))))) is different from false [2022-07-21 02:21:24,647 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:24,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 121 [2022-07-21 02:21:24,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:24,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 115 treesize of output 91 [2022-07-21 02:21:24,652 INFO L390 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 106 treesize of output 86 [2022-07-21 02:21:24,655 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:24,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2022-07-21 02:21:24,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:24,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 55 treesize of output 37 [2022-07-21 02:21:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 12 not checked. [2022-07-21 02:21:24,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876272847] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:24,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:24,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 26 [2022-07-21 02:21:24,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627729114] [2022-07-21 02:21:24,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:24,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-21 02:21:24,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:24,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-21 02:21:24,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=523, Unknown=6, NotChecked=46, Total=650 [2022-07-21 02:21:24,773 INFO L87 Difference]: Start difference. First operand 132 states and 178 transitions. Second operand has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:25,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:25,764 INFO L93 Difference]: Finished difference Result 178 states and 229 transitions. [2022-07-21 02:21:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-21 02:21:25,764 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 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 49 [2022-07-21 02:21:25,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:25,765 INFO L225 Difference]: With dead ends: 178 [2022-07-21 02:21:25,765 INFO L226 Difference]: Without dead ends: 176 [2022-07-21 02:21:25,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 89 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=388, Invalid=1680, Unknown=6, NotChecked=88, Total=2162 [2022-07-21 02:21:25,768 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 89 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:25,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 446 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 282 Invalid, 0 Unknown, 109 Unchecked, 0.2s Time] [2022-07-21 02:21:25,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-07-21 02:21:25,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 129. [2022-07-21 02:21:25,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.3671875) internal successors, (175), 128 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2022-07-21 02:21:25,777 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 175 transitions. Word has length 49 [2022-07-21 02:21:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:25,778 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 175 transitions. [2022-07-21 02:21:25,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 175 transitions. [2022-07-21 02:21:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-21 02:21:25,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:25,779 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:25,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:25,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-21 02:21:25,992 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:25,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:25,993 INFO L85 PathProgramCache]: Analyzing trace with hash -544700735, now seen corresponding path program 2 times [2022-07-21 02:21:25,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:25,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644763926] [2022-07-21 02:21:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:25,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 02:21:26,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:26,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644763926] [2022-07-21 02:21:26,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644763926] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:26,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630260694] [2022-07-21 02:21:26,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 02:21:26,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:26,233 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:26,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 02:21:26,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 02:21:26,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:26,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-21 02:21:26,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:26,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:26,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:26,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:21:26,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:26,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:26,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:26,472 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:26,473 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:26,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:21:26,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:26,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:26,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2022-07-21 02:21:26,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:26,565 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:21:26,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:26,574 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-21 02:21:26,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:21:26,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:26,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:21:27,047 INFO L356 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-07-21 02:21:27,048 INFO L390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2022-07-21 02:21:27,056 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-21 02:21:27,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-07-21 02:21:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 02:21:27,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:27,286 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:27,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2022-07-21 02:21:27,290 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:27,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2022-07-21 02:21:27,300 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_59 (Array Int Int)) (v_arrayElimArr_60 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_47| Int) (v_ArrVal_1084 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_47| v_ArrVal_1084) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_47| v_arrayElimArr_59) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_47| v_arrayElimArr_60) |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (or (not (= (select .cse0 (+ 8 .cse1)) 2)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_60 0))) (not (= (select v_arrayElimArr_59 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_47|) 0))))) is different from false [2022-07-21 02:21:27,343 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:27,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 107 [2022-07-21 02:21:27,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:27,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 101 treesize of output 83 [2022-07-21 02:21:27,348 INFO L390 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 98 treesize of output 78 [2022-07-21 02:21:27,352 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:27,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 55 [2022-07-21 02:21:27,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:27,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 49 treesize of output 37 [2022-07-21 02:21:27,452 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:21:27,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 1 [2022-07-21 02:21:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 12 not checked. [2022-07-21 02:21:27,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630260694] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:27,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:27,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 24 [2022-07-21 02:21:27,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111290728] [2022-07-21 02:21:27,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:27,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-21 02:21:27,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:27,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-21 02:21:27,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=4, NotChecked=42, Total=552 [2022-07-21 02:21:27,455 INFO L87 Difference]: Start difference. First operand 129 states and 175 transitions. Second operand has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:28,460 INFO L93 Difference]: Finished difference Result 166 states and 216 transitions. [2022-07-21 02:21:28,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-21 02:21:28,461 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-07-21 02:21:28,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:28,462 INFO L225 Difference]: With dead ends: 166 [2022-07-21 02:21:28,462 INFO L226 Difference]: Without dead ends: 164 [2022-07-21 02:21:28,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=361, Invalid=1709, Unknown=4, NotChecked=88, Total=2162 [2022-07-21 02:21:28,467 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 95 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 121 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:28,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 460 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 352 Invalid, 0 Unknown, 121 Unchecked, 0.2s Time] [2022-07-21 02:21:28,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-07-21 02:21:28,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 67. [2022-07-21 02:21:28,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 66 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2022-07-21 02:21:28,474 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 49 [2022-07-21 02:21:28,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:28,474 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2022-07-21 02:21:28,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:28,474 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2022-07-21 02:21:28,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-21 02:21:28,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:28,475 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:28,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:28,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-21 02:21:28,691 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:28,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:28,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2085516585, now seen corresponding path program 5 times [2022-07-21 02:21:28,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:28,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41912761] [2022-07-21 02:21:28,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:28,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:28,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:28,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41912761] [2022-07-21 02:21:28,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41912761] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:28,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56913400] [2022-07-21 02:21:28,848 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-21 02:21:28,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:28,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:28,849 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:28,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-21 02:21:29,263 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-07-21 02:21:29,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:29,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-21 02:21:29,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:29,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:29,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:29,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:29,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:29,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:29,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:29,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:29,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:29,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:29,347 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:29,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:29,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:29,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:29,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:29,423 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:21:29,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 52 [2022-07-21 02:21:29,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:29,443 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-21 02:21:29,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:21:29,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:29,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:21:29,788 INFO L356 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2022-07-21 02:21:29,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 74 [2022-07-21 02:21:29,800 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:21:29,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:21:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:29,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:29,888 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:29,892 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:29,900 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:29,904 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:29,926 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1216 (Array Int Int)) (v_ArrVal_1210 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_53| Int)) (or (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_53| (store v_ArrVal_1216 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_53| (store v_ArrVal_1210 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) 0) (= (select (select .cse3 .cse1) .cse2) 0)))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_53|) 0)))) is different from false [2022-07-21 02:21:29,935 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:29,939 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:29,947 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:29,954 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:29,980 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:29,984 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:29,992 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:29,997 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:29,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:30,023 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:30,027 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:30,037 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:30,041 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:30,068 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:30,071 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:30,088 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:30,091 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:30,145 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2022-07-21 02:21:30,156 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2022-07-21 02:21:30,160 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 43 [2022-07-21 02:21:30,164 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2022-07-21 02:21:30,188 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2022-07-21 02:21:30,192 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2022-07-21 02:21:30,196 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 43 [2022-07-21 02:21:30,200 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2022-07-21 02:21:30,302 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_93 (Array Int Int)) (v_arrayElimArr_92 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_53| Int) (v_arrayElimArr_95 (Array Int Int)) (v_arrayElimArr_94 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_94 0))) (or (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_53|) 0)) (not (= (select v_arrayElimArr_95 0) 0)) (not (= (select |c_#valid| .cse0) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_92 0))) (= (select (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_92) |v_ULTIMATE.start_main_~l~0#1.base_53| v_arrayElimArr_94))) (select .cse1 (select (select .cse1 .cse0) 0))) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_93) |v_ULTIMATE.start_main_~l~0#1.base_53| v_arrayElimArr_95) .cse0) 0)) 0) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_93 0)))))) (forall ((v_arrayElimArr_88 (Array Int Int)) (v_arrayElimArr_89 (Array Int Int)) (v_arrayElimArr_91 (Array Int Int)) (v_arrayElimArr_90 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_53| Int)) (let ((.cse3 (select v_arrayElimArr_91 0))) (or (not (= (select v_arrayElimArr_90 0) 0)) (= (let ((.cse2 (store (store |c_#memory_$Pointer$.offset| .cse3 v_arrayElimArr_88) |v_ULTIMATE.start_main_~l~0#1.base_53| v_arrayElimArr_90))) (select (select .cse2 (select (select (store (store |c_#memory_$Pointer$.base| .cse3 v_arrayElimArr_89) |v_ULTIMATE.start_main_~l~0#1.base_53| v_arrayElimArr_91) .cse3) 0)) (select (select .cse2 .cse3) 0))) 0) (not (= (select v_arrayElimArr_89 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select |c_#valid| .cse3) 0)) (not (= (select (store |c_#valid| .cse3 1) |v_ULTIMATE.start_main_~l~0#1.base_53|) 0)) (not (= (select v_arrayElimArr_88 0) |c_ULTIMATE.start_main_~l~0#1.offset|)))))) is different from false [2022-07-21 02:21:30,405 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 66 [2022-07-21 02:21:30,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:30,414 INFO L356 Elim1Store]: treesize reduction 32, result has 11.1 percent of original size [2022-07-21 02:21:30,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 256 treesize of output 222 [2022-07-21 02:21:30,424 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 152 [2022-07-21 02:21:30,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:30,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 80 treesize of output 74 [2022-07-21 02:21:30,445 INFO L390 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 99 treesize of output 83 [2022-07-21 02:21:30,448 INFO L390 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 64 treesize of output 54 [2022-07-21 02:21:30,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:30,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:30,456 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-07-21 02:21:30,456 INFO L390 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 20 treesize of output 14 [2022-07-21 02:21:30,459 INFO L390 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 37 treesize of output 31 [2022-07-21 02:21:30,464 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 02:21:30,464 INFO L390 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2022-07-21 02:21:30,471 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 78 [2022-07-21 02:21:30,477 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:30,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 54 [2022-07-21 02:21:30,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:30,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 42 treesize of output 36 [2022-07-21 02:21:30,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:30,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 88 treesize of output 74 [2022-07-21 02:21:30,489 INFO L390 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 99 treesize of output 79 [2022-07-21 02:21:30,493 INFO L390 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 79 treesize of output 63 [2022-07-21 02:21:30,500 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-21 02:21:30,500 INFO L390 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 22 treesize of output 18 [2022-07-21 02:21:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:21:30,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56913400] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:30,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:30,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 21 [2022-07-21 02:21:30,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065895245] [2022-07-21 02:21:30,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:30,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-21 02:21:30,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-21 02:21:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=296, Unknown=2, NotChecked=70, Total=420 [2022-07-21 02:21:30,517 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:30,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:30,821 INFO L93 Difference]: Finished difference Result 133 states and 164 transitions. [2022-07-21 02:21:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 02:21:30,821 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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 51 [2022-07-21 02:21:30,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:30,822 INFO L225 Difference]: With dead ends: 133 [2022-07-21 02:21:30,822 INFO L226 Difference]: Without dead ends: 109 [2022-07-21 02:21:30,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=432, Unknown=2, NotChecked=86, Total=600 [2022-07-21 02:21:30,823 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 61 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 207 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:30,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 578 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 207 Unchecked, 0.2s Time] [2022-07-21 02:21:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-07-21 02:21:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2022-07-21 02:21:30,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2626262626262625) internal successors, (125), 99 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:30,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2022-07-21 02:21:30,831 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 51 [2022-07-21 02:21:30,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:30,831 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2022-07-21 02:21:30,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:30,832 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2022-07-21 02:21:30,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-21 02:21:30,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:30,832 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:30,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-07-21 02:21:31,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-21 02:21:31,052 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:31,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1891737581, now seen corresponding path program 3 times [2022-07-21 02:21:31,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:31,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808102016] [2022-07-21 02:21:31,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:31,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:31,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808102016] [2022-07-21 02:21:31,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808102016] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:31,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510029064] [2022-07-21 02:21:31,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-21 02:21:31,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:31,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:31,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:31,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-21 02:21:31,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-07-21 02:21:31,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:31,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-21 02:21:31,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:31,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:31,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:31,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:31,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:31,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:31,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:31,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:31,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:31,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:21:31,557 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:31,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:31,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:31,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:31,645 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:21:31,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 52 [2022-07-21 02:21:31,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:31,654 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-21 02:21:31,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:21:31,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:31,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:21:32,043 INFO L356 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2022-07-21 02:21:32,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 74 [2022-07-21 02:21:32,051 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:21:32,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:21:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:32,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:32,261 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:32,285 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:32,298 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:32,301 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:32,319 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_60| Int) (v_ArrVal_1339 (Array Int Int)) (v_ArrVal_1340 (Array Int Int))) (or (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_60| (store v_ArrVal_1340 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_60| (store v_ArrVal_1339 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) 0) (= (select (select .cse3 .cse1) .cse2) 0)))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_60|) 0)))) is different from false [2022-07-21 02:21:32,324 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:32,328 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:32,334 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:32,337 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:32,355 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:32,359 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:32,364 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:32,367 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:32,388 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:32,390 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:32,398 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:32,401 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:32,422 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:32,427 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:32,435 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:32,440 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:32,466 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2022-07-21 02:21:32,470 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2022-07-21 02:21:32,473 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 43 [2022-07-21 02:21:32,477 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2022-07-21 02:21:32,487 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2022-07-21 02:21:32,491 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2022-07-21 02:21:32,506 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 43 [2022-07-21 02:21:32,511 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2022-07-21 02:21:32,596 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~l~0#1.base_60| Int) (v_arrayElimArr_125 (Array Int Int)) (v_arrayElimArr_124 (Array Int Int)) (v_arrayElimArr_127 (Array Int Int)) (v_arrayElimArr_126 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_127 0))) (or (not (= (select |c_#valid| .cse0) 0)) (= (let ((.cse1 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_124) |v_ULTIMATE.start_main_~l~0#1.base_60| v_arrayElimArr_126))) (select (select .cse1 (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_125) |v_ULTIMATE.start_main_~l~0#1.base_60| v_arrayElimArr_127) .cse0) 0)) (select (select .cse1 .cse0) 0))) 0) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_125 0))) (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_60|) 0)) (not (= (select v_arrayElimArr_124 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_126 0) 0))))) (forall ((|v_ULTIMATE.start_main_~l~0#1.base_60| Int) (v_arrayElimArr_131 (Array Int Int)) (v_arrayElimArr_130 (Array Int Int)) (v_arrayElimArr_129 (Array Int Int)) (v_arrayElimArr_128 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_130 0))) (or (not (= (select v_arrayElimArr_129 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (= (select (let ((.cse2 (store (store |c_#memory_$Pointer$.base| .cse3 v_arrayElimArr_128) |v_ULTIMATE.start_main_~l~0#1.base_60| v_arrayElimArr_130))) (select .cse2 (select (select .cse2 .cse3) 0))) (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 v_arrayElimArr_129) |v_ULTIMATE.start_main_~l~0#1.base_60| v_arrayElimArr_131) .cse3) 0)) 0) (not (= (select (store |c_#valid| .cse3 1) |v_ULTIMATE.start_main_~l~0#1.base_60|) 0)) (not (= (select v_arrayElimArr_131 0) 0)) (not (= (select v_arrayElimArr_128 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select |c_#valid| .cse3) 0)))))) is different from false [2022-07-21 02:21:32,704 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 78 [2022-07-21 02:21:32,708 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 54 [2022-07-21 02:21:32,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:32,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 42 treesize of output 36 [2022-07-21 02:21:32,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:32,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 88 treesize of output 74 [2022-07-21 02:21:32,719 INFO L390 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 99 treesize of output 79 [2022-07-21 02:21:32,721 INFO L390 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 79 treesize of output 63 [2022-07-21 02:21:32,726 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-21 02:21:32,726 INFO L390 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 22 treesize of output 18 [2022-07-21 02:21:32,734 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 66 [2022-07-21 02:21:32,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:32,741 INFO L356 Elim1Store]: treesize reduction 32, result has 11.1 percent of original size [2022-07-21 02:21:32,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 572 treesize of output 506 [2022-07-21 02:21:32,750 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:32,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 498 treesize of output 340 [2022-07-21 02:21:32,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:32,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 172 treesize of output 166 [2022-07-21 02:21:32,788 INFO L390 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 191 treesize of output 171 [2022-07-21 02:21:32,790 INFO L390 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 171 treesize of output 139 [2022-07-21 02:21:32,796 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 02:21:32,797 INFO L390 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 114 [2022-07-21 02:21:32,801 INFO L390 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 90 treesize of output 80 [2022-07-21 02:21:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:21:32,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510029064] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:32,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:32,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 21 [2022-07-21 02:21:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131454519] [2022-07-21 02:21:32,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:32,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-21 02:21:32,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:32,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-21 02:21:32,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=296, Unknown=2, NotChecked=70, Total=420 [2022-07-21 02:21:32,813 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:33,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:33,101 INFO L93 Difference]: Finished difference Result 136 states and 165 transitions. [2022-07-21 02:21:33,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 02:21:33,102 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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 51 [2022-07-21 02:21:33,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:33,102 INFO L225 Difference]: With dead ends: 136 [2022-07-21 02:21:33,103 INFO L226 Difference]: Without dead ends: 104 [2022-07-21 02:21:33,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=435, Unknown=2, NotChecked=86, Total=600 [2022-07-21 02:21:33,103 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 59 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 228 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:33,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 641 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 228 Unchecked, 0.2s Time] [2022-07-21 02:21:33,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-21 02:21:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 97. [2022-07-21 02:21:33,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.25) internal successors, (120), 96 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 120 transitions. [2022-07-21 02:21:33,111 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 120 transitions. Word has length 51 [2022-07-21 02:21:33,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:33,111 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 120 transitions. [2022-07-21 02:21:33,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 120 transitions. [2022-07-21 02:21:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-21 02:21:33,112 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:33,112 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:33,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-21 02:21:33,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-21 02:21:33,329 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:33,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash 13616817, now seen corresponding path program 4 times [2022-07-21 02:21:33,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:33,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734369939] [2022-07-21 02:21:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:33,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:33,498 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:33,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:33,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734369939] [2022-07-21 02:21:33,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734369939] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:33,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992683071] [2022-07-21 02:21:33,499 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-21 02:21:33,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:33,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:33,500 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:33,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-21 02:21:33,629 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-21 02:21:33,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:33,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-21 02:21:33,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:33,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:33,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:33,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:33,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:33,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:33,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:33,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:33,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:33,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:33,700 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:33,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:33,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:33,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:33,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:33,791 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:21:33,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 52 [2022-07-21 02:21:33,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:33,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:33,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:21:33,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:33,803 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-07-21 02:21:33,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:21:34,214 INFO L356 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2022-07-21 02:21:34,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 74 [2022-07-21 02:21:34,225 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:21:34,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:21:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:34,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:34,301 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:34,305 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:34,312 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:34,315 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:34,337 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_67| Int) (v_ArrVal_1470 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_67|) 0)) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_67| (store v_ArrVal_1470 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_67| (store v_ArrVal_1475 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (and (= (select (select .cse0 .cse1) .cse2) 0) (= (select (select .cse3 .cse1) .cse2) 0)))))) is different from false [2022-07-21 02:21:34,343 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:34,346 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:34,354 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:34,357 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:34,381 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:34,385 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:34,392 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:34,396 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:34,420 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:34,425 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:34,434 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:34,438 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:34,466 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-07-21 02:21:34,470 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-07-21 02:21:34,478 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-07-21 02:21:34,482 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-07-21 02:21:34,514 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2022-07-21 02:21:34,518 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2022-07-21 02:21:34,522 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 43 [2022-07-21 02:21:34,526 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2022-07-21 02:21:34,538 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2022-07-21 02:21:34,542 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2022-07-21 02:21:34,546 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 43 [2022-07-21 02:21:34,550 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2022-07-21 02:21:34,646 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_165 (Array Int Int)) (v_arrayElimArr_164 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_67| Int) (v_arrayElimArr_167 (Array Int Int)) (v_arrayElimArr_166 (Array Int Int))) (let ((.cse1 (select v_arrayElimArr_167 0))) (or (= (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse1 v_arrayElimArr_164) |v_ULTIMATE.start_main_~l~0#1.base_67| v_arrayElimArr_166))) (select (select .cse0 (select (select (store (store |c_#memory_$Pointer$.base| .cse1 v_arrayElimArr_165) |v_ULTIMATE.start_main_~l~0#1.base_67| v_arrayElimArr_167) .cse1) 0)) (select (select .cse0 .cse1) 0))) 0) (not (= (select |c_#valid| .cse1) 0)) (not (= (select v_arrayElimArr_166 0) 0)) (not (= (select (store |c_#valid| .cse1 1) |v_ULTIMATE.start_main_~l~0#1.base_67|) 0)) (not (= (select v_arrayElimArr_165 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_164 0) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (forall ((v_arrayElimArr_161 (Array Int Int)) (v_arrayElimArr_160 (Array Int Int)) (v_arrayElimArr_163 (Array Int Int)) (v_arrayElimArr_162 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_67| Int)) (let ((.cse2 (select v_arrayElimArr_162 0))) (or (not (= (select |c_#valid| .cse2) 0)) (= (select (let ((.cse3 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_160) |v_ULTIMATE.start_main_~l~0#1.base_67| v_arrayElimArr_162))) (select .cse3 (select (select .cse3 .cse2) 0))) (select (select (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_161) |v_ULTIMATE.start_main_~l~0#1.base_67| v_arrayElimArr_163) .cse2) 0)) 0) (not (= (select v_arrayElimArr_160 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_161 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= 0 (select v_arrayElimArr_163 0))) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_67|) 0)))))) is different from false [2022-07-21 02:21:34,769 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 66 [2022-07-21 02:21:34,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:34,775 INFO L356 Elim1Store]: treesize reduction 32, result has 11.1 percent of original size [2022-07-21 02:21:34,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 256 treesize of output 222 [2022-07-21 02:21:34,780 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 152 [2022-07-21 02:21:34,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:34,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 80 treesize of output 74 [2022-07-21 02:21:34,786 INFO L390 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 76 treesize of output 66 [2022-07-21 02:21:34,788 INFO L390 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 69 treesize of output 57 [2022-07-21 02:21:34,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:34,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:34,793 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-07-21 02:21:34,793 INFO L390 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 20 treesize of output 14 [2022-07-21 02:21:34,795 INFO L390 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 37 treesize of output 31 [2022-07-21 02:21:34,799 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 02:21:34,799 INFO L390 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2022-07-21 02:21:34,805 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 78 [2022-07-21 02:21:34,809 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:34,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 54 [2022-07-21 02:21:34,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:34,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 42 treesize of output 36 [2022-07-21 02:21:34,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:34,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 188 treesize of output 166 [2022-07-21 02:21:34,819 INFO L390 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 191 treesize of output 151 [2022-07-21 02:21:34,821 INFO L390 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 151 treesize of output 115 [2022-07-21 02:21:34,828 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-21 02:21:34,828 INFO L390 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 22 treesize of output 18 [2022-07-21 02:21:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:21:34,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992683071] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:34,838 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:34,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 21 [2022-07-21 02:21:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569843952] [2022-07-21 02:21:34,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:34,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-21 02:21:34,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-21 02:21:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=296, Unknown=2, NotChecked=70, Total=420 [2022-07-21 02:21:34,839 INFO L87 Difference]: Start difference. First operand 97 states and 120 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:35,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:35,104 INFO L93 Difference]: Finished difference Result 123 states and 150 transitions. [2022-07-21 02:21:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 02:21:35,104 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 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 51 [2022-07-21 02:21:35,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:35,105 INFO L225 Difference]: With dead ends: 123 [2022-07-21 02:21:35,105 INFO L226 Difference]: Without dead ends: 79 [2022-07-21 02:21:35,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=435, Unknown=2, NotChecked=86, Total=600 [2022-07-21 02:21:35,105 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:35,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 453 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 106 Unchecked, 0.2s Time] [2022-07-21 02:21:35,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-07-21 02:21:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-07-21 02:21:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.295774647887324) internal successors, (92), 71 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:35,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2022-07-21 02:21:35,111 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 51 [2022-07-21 02:21:35,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:35,112 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2022-07-21 02:21:35,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2022-07-21 02:21:35,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 02:21:35,112 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:35,112 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:35,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:35,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:35,326 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:35,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:35,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1013477057, now seen corresponding path program 6 times [2022-07-21 02:21:35,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:35,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215340004] [2022-07-21 02:21:35,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:35,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:35,917 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 20 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:35,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:35,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215340004] [2022-07-21 02:21:35,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215340004] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:35,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158117418] [2022-07-21 02:21:35,917 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-21 02:21:35,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:35,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:35,922 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:35,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-21 02:21:36,232 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-07-21 02:21:36,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:36,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 106 conjunts are in the unsatisfiable core [2022-07-21 02:21:36,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:36,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:36,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:21:36,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:36,311 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:21:36,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:21:36,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:21:36,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:36,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:36,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:36,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2022-07-21 02:21:36,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:21:36,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,417 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:21:36,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:21:36,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:36,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:36,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,546 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:21:36,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 83 [2022-07-21 02:21:36,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2022-07-21 02:21:36,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,561 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:21:36,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:21:36,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:36,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:21:37,621 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-21 02:21:37,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 190 treesize of output 100 [2022-07-21 02:21:37,633 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:21:37,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:21:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:37,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:38,011 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:38,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 135 [2022-07-21 02:21:38,015 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:38,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 117 [2022-07-21 02:21:38,026 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1646 (Array Int Int)) (v_arrayElimArr_176 (Array Int Int)) (v_arrayElimArr_177 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_74| Int)) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_177)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_176))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_74| v_ArrVal_1646) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select v_arrayElimArr_176 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_177 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_74|) 0)) (not (= (select .cse0 (+ 4 .cse1)) 1)) (not (= 3 (select .cse0 (+ 8 .cse1))))))))) is different from false [2022-07-21 02:21:38,075 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:38,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 221 [2022-07-21 02:21:38,080 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:38,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 203 [2022-07-21 02:21:38,097 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1646 (Array Int Int)) (v_arrayElimArr_176 (Array Int Int)) (v_arrayElimArr_179 (Array Int Int)) (v_arrayElimArr_178 (Array Int Int)) (v_arrayElimArr_177 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_74| Int) (v_ArrVal_1638 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_176 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_178) |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_177)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_179) |v_ULTIMATE.start_main_~l~0#1.base_74| v_arrayElimArr_176))) (let ((.cse4 (select (select .cse6 .cse2) 0)) (.cse5 (select (select .cse3 .cse2) 0))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_1638) |v_ULTIMATE.start_main_~l~0#1.base_74| v_ArrVal_1646) (select (select .cse6 .cse4) .cse5))) (.cse1 (select (select .cse3 .cse4) .cse5))) (or (not (= (select v_arrayElimArr_177 0) 0)) (not (= (select v_arrayElimArr_179 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_74|) 0)) (not (= 3 (select .cse0 (+ .cse1 8)))) (not (= (select |c_#valid| .cse2) 0)) (not (= (select v_arrayElimArr_178 0) |c_ULTIMATE.start_main_~l~0#1.offset|)))))))) is different from false [2022-07-21 02:21:38,182 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:38,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 289 [2022-07-21 02:21:38,188 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:38,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 279 treesize of output 217 [2022-07-21 02:21:38,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:38,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:38,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:38,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:38,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 153 treesize of output 107 [2022-07-21 02:21:38,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:38,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 327 treesize of output 305 [2022-07-21 02:21:38,202 INFO L390 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 338 treesize of output 284 [2022-07-21 02:21:38,205 INFO L390 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 278 treesize of output 234 [2022-07-21 02:21:38,878 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:21:38,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158117418] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:38,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:38,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 13] total 39 [2022-07-21 02:21:38,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363624757] [2022-07-21 02:21:38,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:38,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-07-21 02:21:38,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:38,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-07-21 02:21:38,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1234, Unknown=2, NotChecked=142, Total=1482 [2022-07-21 02:21:38,880 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 39 states, 39 states have (on average 3.8205128205128207) internal successors, (149), 39 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:46,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:21:46,394 INFO L93 Difference]: Finished difference Result 180 states and 217 transitions. [2022-07-21 02:21:46,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-07-21 02:21:46,394 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.8205128205128207) internal successors, (149), 39 states have internal predecessors, (149), 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 56 [2022-07-21 02:21:46,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:21:46,395 INFO L225 Difference]: With dead ends: 180 [2022-07-21 02:21:46,395 INFO L226 Difference]: Without dead ends: 165 [2022-07-21 02:21:46,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 102 SyntacticMatches, 6 SemanticMatches, 83 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1410 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=950, Invalid=5862, Unknown=2, NotChecked=326, Total=7140 [2022-07-21 02:21:46,396 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 584 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 369 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 02:21:46,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1048 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 487 Invalid, 0 Unknown, 369 Unchecked, 0.4s Time] [2022-07-21 02:21:46,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-07-21 02:21:46,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 104. [2022-07-21 02:21:46,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 103 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 130 transitions. [2022-07-21 02:21:46,405 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 130 transitions. Word has length 56 [2022-07-21 02:21:46,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:21:46,405 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 130 transitions. [2022-07-21 02:21:46,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.8205128205128207) internal successors, (149), 39 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:21:46,405 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 130 transitions. [2022-07-21 02:21:46,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 02:21:46,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:21:46,406 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:21:46,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-21 02:21:46,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:46,606 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:21:46,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:21:46,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1207256061, now seen corresponding path program 5 times [2022-07-21 02:21:46,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:21:46,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596552545] [2022-07-21 02:21:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:21:46,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:21:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:21:47,165 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 19 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:47,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:21:47,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596552545] [2022-07-21 02:21:47,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596552545] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:21:47,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801693289] [2022-07-21 02:21:47,165 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-21 02:21:47,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:21:47,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:21:47,166 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:21:47,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-21 02:21:48,114 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-07-21 02:21:48,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:21:48,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 112 conjunts are in the unsatisfiable core [2022-07-21 02:21:48,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:21:48,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:21:48,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:21:48,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:48,192 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-07-21 02:21:48,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2022-07-21 02:21:48,201 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-07-21 02:21:48,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:21:48,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:21:48,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:48,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:48,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 48 [2022-07-21 02:21:48,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2022-07-21 02:21:48,314 INFO L356 Elim1Store]: treesize reduction 100, result has 25.9 percent of original size [2022-07-21 02:21:48,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:21:48,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:21:48,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:48,437 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:21:48,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 53 [2022-07-21 02:21:48,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,449 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:21:48,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 118 treesize of output 82 [2022-07-21 02:21:48,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,458 INFO L356 Elim1Store]: treesize reduction 33, result has 32.7 percent of original size [2022-07-21 02:21:48,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:21:48,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:48,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:21:49,453 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-21 02:21:49,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 199 treesize of output 113 [2022-07-21 02:21:49,470 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:21:49,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 34 [2022-07-21 02:21:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:21:49,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:21:49,842 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:49,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 165 [2022-07-21 02:21:49,846 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:49,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 144 [2022-07-21 02:21:49,857 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_81| Int) (v_arrayElimArr_187 (Array Int Int)) (v_arrayElimArr_186 (Array Int Int)) (v_ArrVal_1818 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_81| v_arrayElimArr_187)) (.cse6 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_81| v_arrayElimArr_186))) (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_81| v_ArrVal_1818)) (.cse1 (select (select .cse6 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse2 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse3 (select .cse0 (select (select .cse6 .cse1) .cse2))) (.cse4 (select (select .cse5 .cse1) .cse2))) (or (not (= (select (select .cse0 .cse1) (+ .cse2 4)) 0)) (not (= (select .cse3 (+ 4 .cse4)) 1)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_187 0))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_81|) 0)) (not (= 3 (select .cse3 (+ 8 .cse4)))) (not (= (select v_arrayElimArr_186 0) |c_ULTIMATE.start_main_~l~0#1.base|))))))) is different from false [2022-07-21 02:21:49,943 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:49,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 285 treesize of output 270 [2022-07-21 02:21:49,947 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:49,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 264 treesize of output 249 [2022-07-21 02:21:49,965 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_81| Int) (v_arrayElimArr_187 (Array Int Int)) (v_arrayElimArr_186 (Array Int Int)) (v_arrayElimArr_189 (Array Int Int)) (v_ArrVal_1807 (Array Int Int)) (v_ArrVal_1818 (Array Int Int)) (v_arrayElimArr_188 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_186 0))) (let ((.cse6 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_188) |v_ULTIMATE.start_main_~l~0#1.base_81| v_arrayElimArr_187)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_189) |v_ULTIMATE.start_main_~l~0#1.base_81| v_arrayElimArr_186))) (let ((.cse3 (store (store |c_#memory_int| .cse2 v_ArrVal_1807) |v_ULTIMATE.start_main_~l~0#1.base_81| v_ArrVal_1818)) (.cse4 (select (select .cse7 .cse2) 0)) (.cse5 (select (select .cse6 .cse2) 0))) (let ((.cse0 (select .cse3 (select (select .cse7 .cse4) .cse5))) (.cse1 (select (select .cse6 .cse4) .cse5))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_189 0))) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_81|) 0)) (not (= (select |c_#valid| .cse2) 0)) (not (= (select (select .cse3 .cse4) (+ .cse5 4)) 0)) (not (= 0 (select v_arrayElimArr_187 0))) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_188 0))))))))) is different from false [2022-07-21 02:21:50,067 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:50,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 426 treesize of output 352 [2022-07-21 02:21:50,075 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:21:50,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 342 treesize of output 268 [2022-07-21 02:21:50,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:50,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:50,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:21:50,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 192 treesize of output 146 [2022-07-21 02:21:50,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:21:50,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 714 treesize of output 676 [2022-07-21 02:21:50,103 INFO L390 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 701 treesize of output 589 [2022-07-21 02:21:50,106 INFO L390 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 589 treesize of output 487 [2022-07-21 02:21:50,112 INFO L390 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 28 treesize of output 24 [2022-07-21 02:21:51,982 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_81| Int) (v_arrayElimCell_300 Int) (v_arrayElimCell_299 Int) (v_ArrVal_1807 (Array Int Int)) (v_ArrVal_1818 (Array Int Int)) (v_ArrVal_1805 (Array Int Int))) (let ((.cse2 (store (store (store |c_#memory_int| v_arrayElimCell_299 v_ArrVal_1805) v_arrayElimCell_300 v_ArrVal_1807) |v_ULTIMATE.start_main_~l~0#1.base_81| v_ArrVal_1818))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|)) (.cse1 (store |c_#valid| v_arrayElimCell_299 1))) (or (not (= (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 1)) (not (= (select (store .cse1 v_arrayElimCell_300 1) |v_ULTIMATE.start_main_~l~0#1.base_81|) 0)) (not (= 3 (select .cse0 (+ |c_ULTIMATE.start_main_~l~0#1.offset| 8)))) (not (= (select .cse1 v_arrayElimCell_300) 0)) (not (= 0 (select (select .cse2 v_arrayElimCell_299) 4))))))) is different from false [2022-07-21 02:21:52,031 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 24 not checked. [2022-07-21 02:21:52,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801693289] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:21:52,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:21:52,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 15] total 43 [2022-07-21 02:21:52,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913426679] [2022-07-21 02:21:52,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:21:52,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-07-21 02:21:52,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:21:52,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-07-21 02:21:52,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1445, Unknown=3, NotChecked=234, Total=1806 [2022-07-21 02:21:52,034 INFO L87 Difference]: Start difference. First operand 104 states and 130 transitions. Second operand has 43 states, 43 states have (on average 3.4651162790697674) internal successors, (149), 43 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:04,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:22:04,666 INFO L93 Difference]: Finished difference Result 196 states and 238 transitions. [2022-07-21 02:22:04,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-07-21 02:22:04,667 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.4651162790697674) internal successors, (149), 43 states have internal predecessors, (149), 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 56 [2022-07-21 02:22:04,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:22:04,667 INFO L225 Difference]: With dead ends: 196 [2022-07-21 02:22:04,667 INFO L226 Difference]: Without dead ends: 181 [2022-07-21 02:22:04,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 107 SyntacticMatches, 7 SemanticMatches, 87 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1544 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=1076, Invalid=6243, Unknown=3, NotChecked=510, Total=7832 [2022-07-21 02:22:04,668 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 451 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 528 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 02:22:04,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1209 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 556 Invalid, 0 Unknown, 528 Unchecked, 0.5s Time] [2022-07-21 02:22:04,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-21 02:22:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 88. [2022-07-21 02:22:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.2758620689655173) internal successors, (111), 87 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:04,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2022-07-21 02:22:04,677 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 111 transitions. Word has length 56 [2022-07-21 02:22:04,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:22:04,677 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 111 transitions. [2022-07-21 02:22:04,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.4651162790697674) internal successors, (149), 43 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:04,678 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 111 transitions. [2022-07-21 02:22:04,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 02:22:04,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:22:04,678 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:22:04,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-21 02:22:04,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:04,897 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:22:04,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:22:04,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1403369475, now seen corresponding path program 6 times [2022-07-21 02:22:04,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:22:04,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408669280] [2022-07-21 02:22:04,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:22:04,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:22:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:22:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:05,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:22:05,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408669280] [2022-07-21 02:22:05,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408669280] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:22:05,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835868524] [2022-07-21 02:22:05,269 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-21 02:22:05,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:05,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:22:05,270 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:22:05,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-21 02:22:05,778 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-07-21 02:22:05,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:22:05,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 106 conjunts are in the unsatisfiable core [2022-07-21 02:22:05,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:22:05,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:22:05,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:05,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:05,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:05,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:22:05,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:05,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:05,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:05,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:22:05,860 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:22:05,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:22:05,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:05,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:05,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:05,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:22:05,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:05,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:22:05,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:05,961 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:22:05,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:22:05,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:22:06,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:06,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:06,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:06,092 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:22:06,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 83 [2022-07-21 02:22:06,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:06,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2022-07-21 02:22:06,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:06,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:06,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:06,106 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:22:06,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:22:06,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:06,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:06,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:06,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:22:06,980 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-21 02:22:06,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 190 treesize of output 100 [2022-07-21 02:22:06,996 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:22:06,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:22:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:07,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:22:07,292 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:07,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 135 [2022-07-21 02:22:07,296 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:07,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 117 [2022-07-21 02:22:07,307 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_197 (Array Int Int)) (v_ArrVal_1995 (Array Int Int)) (v_arrayElimArr_196 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_88| Int)) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_88| v_arrayElimArr_197)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_88| v_arrayElimArr_196))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_88| v_ArrVal_1995) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_88|) 0)) (not (= (select .cse0 (+ 8 .cse1)) 3)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select v_arrayElimArr_196 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_197 0)))))))) is different from false [2022-07-21 02:22:07,356 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:07,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 221 [2022-07-21 02:22:07,362 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:07,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 203 [2022-07-21 02:22:07,381 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_198 (Array Int Int)) (v_arrayElimArr_197 (Array Int Int)) (v_ArrVal_1995 (Array Int Int)) (v_arrayElimArr_196 (Array Int Int)) (v_ArrVal_1981 (Array Int Int)) (v_arrayElimArr_199 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_88| Int)) (let ((.cse0 (select v_arrayElimArr_196 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_198) |v_ULTIMATE.start_main_~l~0#1.base_88| v_arrayElimArr_197)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_199) |v_ULTIMATE.start_main_~l~0#1.base_88| v_arrayElimArr_196))) (let ((.cse4 (select (select .cse6 .cse0) 0)) (.cse5 (select (select .cse3 .cse0) 0))) (let ((.cse1 (select (store (store |c_#memory_int| .cse0 v_ArrVal_1981) |v_ULTIMATE.start_main_~l~0#1.base_88| v_ArrVal_1995) (select (select .cse6 .cse4) .cse5))) (.cse2 (select (select .cse3 .cse4) .cse5))) (or (not (= (select v_arrayElimArr_197 0) 0)) (not (= (select v_arrayElimArr_198 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| .cse0) 0)) (not (= (select v_arrayElimArr_199 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse1 (+ .cse2 8)) 3)) (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_88|) 0)) (not (= (select .cse1 (+ .cse2 4)) 1)))))))) is different from false [2022-07-21 02:22:07,487 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:07,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 289 [2022-07-21 02:22:07,492 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:07,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 279 treesize of output 217 [2022-07-21 02:22:07,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:07,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:07,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:07,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 153 treesize of output 107 [2022-07-21 02:22:07,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:07,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 327 treesize of output 305 [2022-07-21 02:22:07,507 INFO L390 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 338 treesize of output 284 [2022-07-21 02:22:07,509 INFO L390 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 278 treesize of output 234 [2022-07-21 02:22:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:22:08,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835868524] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:22:08,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:22:08,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 36 [2022-07-21 02:22:08,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959163969] [2022-07-21 02:22:08,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:22:08,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-07-21 02:22:08,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:22:08,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-07-21 02:22:08,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1034, Unknown=2, NotChecked=130, Total=1260 [2022-07-21 02:22:08,154 INFO L87 Difference]: Start difference. First operand 88 states and 111 transitions. Second operand has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:16,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:22:16,868 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2022-07-21 02:22:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-21 02:22:16,870 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 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 56 [2022-07-21 02:22:16,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:22:16,870 INFO L225 Difference]: With dead ends: 156 [2022-07-21 02:22:16,870 INFO L226 Difference]: Without dead ends: 141 [2022-07-21 02:22:16,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 101 SyntacticMatches, 6 SemanticMatches, 69 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=893, Invalid=3805, Unknown=2, NotChecked=270, Total=4970 [2022-07-21 02:22:16,871 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 390 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 213 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 02:22:16,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1119 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 582 Invalid, 0 Unknown, 213 Unchecked, 0.5s Time] [2022-07-21 02:22:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-07-21 02:22:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 88. [2022-07-21 02:22:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.2758620689655173) internal successors, (111), 87 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2022-07-21 02:22:16,880 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 111 transitions. Word has length 56 [2022-07-21 02:22:16,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:22:16,880 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 111 transitions. [2022-07-21 02:22:16,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 111 transitions. [2022-07-21 02:22:16,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 02:22:16,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:22:16,881 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:22:16,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-21 02:22:17,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-21 02:22:17,099 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:22:17,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:22:17,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1209590471, now seen corresponding path program 7 times [2022-07-21 02:22:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:22:17,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552023204] [2022-07-21 02:22:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:22:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:22:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:22:17,546 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 19 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:17,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:22:17,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552023204] [2022-07-21 02:22:17,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552023204] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:22:17,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715217507] [2022-07-21 02:22:17,547 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-21 02:22:17,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:17,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:22:17,548 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:22:17,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-21 02:22:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:22:17,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 106 conjunts are in the unsatisfiable core [2022-07-21 02:22:17,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:22:17,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:22:17,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:22:17,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:17,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:17,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:22:17,793 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:22:17,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:22:17,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:17,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:17,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:22:17,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,872 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:22:17,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:22:17,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:22:17,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:22:17,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:17,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:17,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,974 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:22:17,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 83 [2022-07-21 02:22:17,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,984 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:22:17,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:22:17,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2022-07-21 02:22:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:17,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:22:18,824 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-21 02:22:18,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 190 treesize of output 100 [2022-07-21 02:22:18,833 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:22:18,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:22:18,889 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:18,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:22:19,082 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:19,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 135 [2022-07-21 02:22:19,085 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:19,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 117 [2022-07-21 02:22:19,111 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_95| Int) (v_arrayElimArr_207 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_arrayElimArr_206 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_95| v_arrayElimArr_207)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_95| v_arrayElimArr_206))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_95| v_ArrVal_2169) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select v_arrayElimArr_206 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_207 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_95|) 0))))))) is different from false [2022-07-21 02:22:19,180 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:19,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 249 treesize of output 237 [2022-07-21 02:22:19,184 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:19,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 231 treesize of output 219 [2022-07-21 02:22:19,202 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_209 (Array Int Int)) (v_arrayElimArr_208 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_95| Int) (v_arrayElimArr_207 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_arrayElimArr_206 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_206 0))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_209) |v_ULTIMATE.start_main_~l~0#1.base_95| v_arrayElimArr_207)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_208) |v_ULTIMATE.start_main_~l~0#1.base_95| v_arrayElimArr_206)) (.cse3 (select v_arrayElimArr_207 0))) (let ((.cse5 (select (select .cse7 .cse2) .cse3)) (.cse6 (select (select .cse4 .cse2) .cse3))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_2161) |v_ULTIMATE.start_main_~l~0#1.base_95| v_ArrVal_2169) (select (select .cse7 .cse5) .cse6))) (.cse1 (select (select .cse4 .cse5) .cse6))) (or (not (= (select v_arrayElimArr_209 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ .cse1 8)) 3)) (not (= (select v_arrayElimArr_208 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select |c_#valid| .cse2) 0)) (not (= .cse3 0)) (not (= (select .cse0 (+ .cse1 4)) 1)) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_95|) 0)))))))) is different from false [2022-07-21 02:22:19,283 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:19,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 305 [2022-07-21 02:22:19,288 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:19,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 295 treesize of output 233 [2022-07-21 02:22:19,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:19,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:19,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:19,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:19,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:19,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 169 treesize of output 115 [2022-07-21 02:22:19,297 INFO L390 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 158 treesize of output 138 [2022-07-21 02:22:19,300 INFO L390 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 124 treesize of output 104 [2022-07-21 02:22:19,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:19,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:19,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:19,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:19,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 63 treesize of output 43 [2022-07-21 02:22:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:22:19,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715217507] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:22:19,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:22:19,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 36 [2022-07-21 02:22:19,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908749672] [2022-07-21 02:22:19,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:22:19,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-07-21 02:22:19,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:22:19,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-07-21 02:22:19,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1030, Unknown=5, NotChecked=130, Total=1260 [2022-07-21 02:22:19,402 INFO L87 Difference]: Start difference. First operand 88 states and 111 transitions. Second operand has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:33,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:22:33,831 INFO L93 Difference]: Finished difference Result 154 states and 187 transitions. [2022-07-21 02:22:33,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-21 02:22:33,831 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 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 56 [2022-07-21 02:22:33,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:22:33,832 INFO L225 Difference]: With dead ends: 154 [2022-07-21 02:22:33,832 INFO L226 Difference]: Without dead ends: 139 [2022-07-21 02:22:33,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 100 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=901, Invalid=3658, Unknown=5, NotChecked=266, Total=4830 [2022-07-21 02:22:33,833 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 406 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 344 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 02:22:33,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 775 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 389 Invalid, 0 Unknown, 344 Unchecked, 0.4s Time] [2022-07-21 02:22:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-07-21 02:22:33,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 80. [2022-07-21 02:22:33,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 79 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:33,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2022-07-21 02:22:33,841 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 56 [2022-07-21 02:22:33,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:22:33,842 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2022-07-21 02:22:33,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.138888888888889) internal successors, (149), 36 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:33,842 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2022-07-21 02:22:33,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 02:22:33,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:22:33,842 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:22:33,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-21 02:22:34,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:34,057 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:22:34,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:22:34,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1512229753, now seen corresponding path program 3 times [2022-07-21 02:22:34,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:22:34,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889994275] [2022-07-21 02:22:34,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:22:34,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:22:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:22:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:34,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:22:34,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889994275] [2022-07-21 02:22:34,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889994275] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:22:34,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641112300] [2022-07-21 02:22:34,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-21 02:22:34,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:34,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:22:34,377 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:22:34,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-21 02:22:34,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-07-21 02:22:34,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:22:34,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 110 conjunts are in the unsatisfiable core [2022-07-21 02:22:34,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:22:34,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:22:34,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:34,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:34,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:34,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:22:34,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:34,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:34,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:34,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:22:34,918 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:22:34,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:22:34,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:35,002 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:35,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:22:35,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:22:35,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,026 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:22:35,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:22:35,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:22:35,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:35,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:35,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,160 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:22:35,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 83 [2022-07-21 02:22:35,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,173 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:22:35,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:22:35,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:35,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:22:35,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2022-07-21 02:22:35,996 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-21 02:22:35,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 190 treesize of output 100 [2022-07-21 02:22:36,008 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:22:36,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:22:36,087 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:36,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:22:36,212 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:36,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 135 [2022-07-21 02:22:36,216 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:36,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 117 [2022-07-21 02:22:36,226 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_102| Int) (v_ArrVal_2345 (Array Int Int)) (v_arrayElimArr_217 (Array Int Int)) (v_arrayElimArr_216 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_102| v_arrayElimArr_217)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_102| v_arrayElimArr_216))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_102| v_ArrVal_2345) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_216 0))) (not (= (select v_arrayElimArr_217 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_102|) 0)) (not (= 2 (select .cse0 (+ .cse1 8))))))))) is different from false [2022-07-21 02:22:36,275 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:36,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 221 [2022-07-21 02:22:36,279 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:36,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 203 [2022-07-21 02:22:36,296 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_219 (Array Int Int)) (v_arrayElimArr_218 (Array Int Int)) (v_ArrVal_2336 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_102| Int) (v_ArrVal_2345 (Array Int Int)) (v_arrayElimArr_217 (Array Int Int)) (v_arrayElimArr_216 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_216 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_218) |v_ULTIMATE.start_main_~l~0#1.base_102| v_arrayElimArr_217)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_219) |v_ULTIMATE.start_main_~l~0#1.base_102| v_arrayElimArr_216))) (let ((.cse4 (select (select .cse6 .cse2) 0)) (.cse5 (select (select .cse3 .cse2) 0))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_2336) |v_ULTIMATE.start_main_~l~0#1.base_102| v_ArrVal_2345) (select (select .cse6 .cse4) .cse5))) (.cse1 (select (select .cse3 .cse4) .cse5))) (or (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= 2 (select .cse0 (+ .cse1 8)))) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_102|) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_218 0))) (not (= (select |c_#valid| .cse2) 0)) (not (= (select v_arrayElimArr_217 0) 0)) (not (= (select v_arrayElimArr_219 0) |c_ULTIMATE.start_main_~l~0#1.base|)))))))) is different from false [2022-07-21 02:22:36,400 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:36,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 289 [2022-07-21 02:22:36,405 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:36,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 279 treesize of output 217 [2022-07-21 02:22:36,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:36,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:36,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:36,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:36,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 153 treesize of output 107 [2022-07-21 02:22:36,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:36,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 687 treesize of output 649 [2022-07-21 02:22:36,422 INFO L390 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 682 treesize of output 572 [2022-07-21 02:22:36,425 INFO L390 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 566 treesize of output 466 [2022-07-21 02:22:37,469 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:22:37,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 1 [2022-07-21 02:22:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:22:37,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641112300] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:22:37,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:22:37,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 29 [2022-07-21 02:22:37,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671143359] [2022-07-21 02:22:37,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:22:37,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-21 02:22:37,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:22:37,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-21 02:22:37,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=627, Unknown=3, NotChecked=102, Total=812 [2022-07-21 02:22:37,472 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:22:38,750 INFO L93 Difference]: Finished difference Result 116 states and 141 transitions. [2022-07-21 02:22:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 02:22:38,751 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 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 58 [2022-07-21 02:22:38,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:22:38,751 INFO L225 Difference]: With dead ends: 116 [2022-07-21 02:22:38,751 INFO L226 Difference]: Without dead ends: 114 [2022-07-21 02:22:38,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=337, Invalid=1648, Unknown=3, NotChecked=174, Total=2162 [2022-07-21 02:22:38,753 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 86 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 233 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 02:22:38,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 756 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 337 Invalid, 0 Unknown, 233 Unchecked, 0.3s Time] [2022-07-21 02:22:38,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-07-21 02:22:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 99. [2022-07-21 02:22:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.2653061224489797) internal successors, (124), 98 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 124 transitions. [2022-07-21 02:22:38,764 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 124 transitions. Word has length 58 [2022-07-21 02:22:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:22:38,765 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 124 transitions. [2022-07-21 02:22:38,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2022-07-21 02:22:38,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 02:22:38,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:22:38,773 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-21 02:22:38,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-21 02:22:38,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:38,988 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:22:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:22:38,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1244708427, now seen corresponding path program 4 times [2022-07-21 02:22:38,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:22:38,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265482376] [2022-07-21 02:22:38,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:22:38,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:22:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:22:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:39,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:22:39,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265482376] [2022-07-21 02:22:39,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265482376] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:22:39,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4558182] [2022-07-21 02:22:39,488 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-21 02:22:39,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:39,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:22:39,489 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:22:39,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-21 02:22:39,691 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-21 02:22:39,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:22:39,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 110 conjunts are in the unsatisfiable core [2022-07-21 02:22:39,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:22:39,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:39,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:39,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:39,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:22:39,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:22:39,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:39,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:39,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:39,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:22:39,754 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:22:39,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:22:39,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:39,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:39,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:39,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:22:39,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:39,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:22:39,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:39,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:22:39,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:39,872 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:22:39,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:22:39,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:39,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:39,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:40,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2022-07-21 02:22:40,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:40,010 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:22:40,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 83 [2022-07-21 02:22:40,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:40,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:40,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:40,032 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:22:40,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:22:40,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:40,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:40,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:40,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:22:41,125 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-21 02:22:41,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 190 treesize of output 100 [2022-07-21 02:22:41,137 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:22:41,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:22:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:41,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:22:41,438 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:41,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 135 [2022-07-21 02:22:41,442 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:41,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 117 [2022-07-21 02:22:41,453 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_109| Int) (v_arrayElimArr_228 (Array Int Int)) (v_arrayElimArr_227 (Array Int Int)) (v_ArrVal_2518 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_228)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_227))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_109| v_ArrVal_2518) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= 0 (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_109|))) (not (= (select .cse0 (+ .cse1 8)) 2)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_228 0))) (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_227 0)))))))) is different from false [2022-07-21 02:22:41,514 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:41,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 221 [2022-07-21 02:22:41,519 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:41,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 203 [2022-07-21 02:22:41,537 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_109| Int) (v_ArrVal_2505 (Array Int Int)) (v_arrayElimArr_229 (Array Int Int)) (v_arrayElimArr_230 (Array Int Int)) (v_arrayElimArr_228 (Array Int Int)) (v_arrayElimArr_227 (Array Int Int)) (v_ArrVal_2518 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_227 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse2 v_arrayElimArr_229) |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_228)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse2 v_arrayElimArr_230) |v_ULTIMATE.start_main_~l~0#1.base_109| v_arrayElimArr_227))) (let ((.cse4 (select (select .cse6 .cse2) 0)) (.cse5 (select (select .cse3 .cse2) 0))) (let ((.cse0 (select (store (store |c_#memory_int| .cse2 v_ArrVal_2505) |v_ULTIMATE.start_main_~l~0#1.base_109| v_ArrVal_2518) (select (select .cse6 .cse4) .cse5))) (.cse1 (select (select .cse3 .cse4) .cse5))) (or (not (= 2 (select .cse0 (+ .cse1 8)))) (not (= (select v_arrayElimArr_230 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_229 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= 0 (select .cse0 (+ .cse1 4)))) (not (= (select (store |c_#valid| .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_109|) 0)) (not (= 0 (select v_arrayElimArr_228 0))) (not (= (select |c_#valid| .cse2) 0)))))))) is different from false [2022-07-21 02:22:41,623 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:41,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 289 [2022-07-21 02:22:41,628 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:41,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 279 treesize of output 217 [2022-07-21 02:22:41,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:41,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:41,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:41,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:41,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 153 treesize of output 107 [2022-07-21 02:22:41,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:41,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 327 treesize of output 305 [2022-07-21 02:22:41,644 INFO L390 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 338 treesize of output 284 [2022-07-21 02:22:41,647 INFO L390 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 278 treesize of output 234 [2022-07-21 02:22:42,207 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:22:42,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 1 [2022-07-21 02:22:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:22:42,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4558182] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:22:42,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:22:42,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 13] total 35 [2022-07-21 02:22:42,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831056336] [2022-07-21 02:22:42,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:22:42,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-21 02:22:42,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:22:42,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-21 02:22:42,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=964, Unknown=4, NotChecked=126, Total=1190 [2022-07-21 02:22:42,210 INFO L87 Difference]: Start difference. First operand 99 states and 124 transitions. Second operand has 35 states, 35 states have (on average 4.228571428571429) internal successors, (148), 35 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:44,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:22:44,955 INFO L93 Difference]: Finished difference Result 164 states and 196 transitions. [2022-07-21 02:22:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-07-21 02:22:44,956 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.228571428571429) internal successors, (148), 35 states have internal predecessors, (148), 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 58 [2022-07-21 02:22:44,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:22:44,957 INFO L225 Difference]: With dead ends: 164 [2022-07-21 02:22:44,957 INFO L226 Difference]: Without dead ends: 162 [2022-07-21 02:22:44,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=808, Invalid=3752, Unknown=4, NotChecked=266, Total=4830 [2022-07-21 02:22:44,958 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 278 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 242 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 02:22:44,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 744 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 530 Invalid, 0 Unknown, 242 Unchecked, 0.4s Time] [2022-07-21 02:22:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-21 02:22:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 99. [2022-07-21 02:22:44,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.2653061224489797) internal successors, (124), 98 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 124 transitions. [2022-07-21 02:22:44,974 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 124 transitions. Word has length 58 [2022-07-21 02:22:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:22:44,974 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 124 transitions. [2022-07-21 02:22:44,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.228571428571429) internal successors, (148), 35 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:22:44,975 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2022-07-21 02:22:44,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 02:22:44,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:22:44,975 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-21 02:22:44,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-21 02:22:45,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:45,192 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:22:45,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:22:45,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1794947659, now seen corresponding path program 5 times [2022-07-21 02:22:45,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:22:45,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786201776] [2022-07-21 02:22:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:22:45,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:22:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:22:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:45,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:22:45,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786201776] [2022-07-21 02:22:45,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786201776] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:22:45,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143434272] [2022-07-21 02:22:45,551 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-21 02:22:45,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:22:45,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:22:45,568 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:22:45,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-21 02:22:46,833 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-07-21 02:22:46,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:22:46,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 124 conjunts are in the unsatisfiable core [2022-07-21 02:22:46,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:22:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:46,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:46,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:46,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:22:46,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:22:46,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:46,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:22:46,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:46,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:22:46,914 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:22:46,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:22:46,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:46,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,002 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:22:47,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:22:47,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:22:47,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,024 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:22:47,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:22:47,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:47,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:22:47,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,186 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:22:47,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 83 [2022-07-21 02:22:47,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,198 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:22:47,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:22:47,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2022-07-21 02:22:47,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:47,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:22:48,590 INFO L356 Elim1Store]: treesize reduction 85, result has 11.5 percent of original size [2022-07-21 02:22:48,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 240 treesize of output 122 [2022-07-21 02:22:48,610 INFO L356 Elim1Store]: treesize reduction 74, result has 8.6 percent of original size [2022-07-21 02:22:48,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 67 treesize of output 43 [2022-07-21 02:22:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:22:48,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:22:49,283 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:49,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 165 [2022-07-21 02:22:49,289 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:49,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 144 [2022-07-21 02:22:49,307 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~l~0#1.base_116| Int) (v_ArrVal_2687 (Array Int Int)) (v_arrayElimArr_239 (Array Int Int)) (v_arrayElimArr_238 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_116| v_arrayElimArr_239)) (.cse6 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_116| v_arrayElimArr_238))) (let ((.cse2 (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_116| v_ArrVal_2687)) (.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select .cse2 (select (select .cse6 .cse3) .cse4))) (.cse1 (select (select .cse5 .cse3) .cse4))) (or (not (= (select .cse0 (+ .cse1 4)) 0)) (not (= (select v_arrayElimArr_238 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_ArrVal_2687 4) 1)) (not (= (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) (+ |c_ULTIMATE.start_main_~l~0#1.offset| 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_116|) 0)) (not (= (select v_arrayElimArr_239 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select .cse0 (+ .cse1 8)) 2)) (not (= (select (select .cse2 .cse3) (+ .cse4 4)) 1))))))) is different from false [2022-07-21 02:22:49,377 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:49,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 285 treesize of output 270 [2022-07-21 02:22:49,383 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:49,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 264 treesize of output 249 [2022-07-21 02:22:49,405 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_241 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_116| Int) (v_ArrVal_2677 (Array Int Int)) (v_arrayElimArr_240 (Array Int Int)) (v_ArrVal_2687 (Array Int Int)) (v_arrayElimArr_239 (Array Int Int)) (v_arrayElimArr_238 (Array Int Int))) (let ((.cse5 (select v_arrayElimArr_238 0))) (let ((.cse6 (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_241) |v_ULTIMATE.start_main_~l~0#1.base_116| v_arrayElimArr_239)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_240) |v_ULTIMATE.start_main_~l~0#1.base_116| v_arrayElimArr_238))) (let ((.cse0 (store (store |c_#memory_int| .cse5 v_ArrVal_2677) |v_ULTIMATE.start_main_~l~0#1.base_116| v_ArrVal_2687)) (.cse1 (select (select .cse7 .cse5) 0)) (.cse2 (select (select .cse6 .cse5) 0))) (let ((.cse3 (select .cse0 (select (select .cse7 .cse1) .cse2))) (.cse4 (select (select .cse6 .cse1) .cse2))) (or (not (= (select (select .cse0 .cse1) (+ .cse2 4)) 1)) (not (= (select v_arrayElimArr_240 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select v_arrayElimArr_239 0) 0)) (not (= (select v_ArrVal_2687 4) 1)) (not (= (select .cse3 (+ .cse4 8)) 2)) (not (= (select v_arrayElimArr_241 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select (select .cse0 .cse5) 4) 0)) (not (= (select .cse3 (+ .cse4 4)) 0)) (not (= (select |c_#valid| .cse5) 0)) (not (= (select (store |c_#valid| .cse5 1) |v_ULTIMATE.start_main_~l~0#1.base_116|) 0)))))))) is different from false [2022-07-21 02:22:49,554 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:49,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 426 treesize of output 352 [2022-07-21 02:22:49,562 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:22:49,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 342 treesize of output 268 [2022-07-21 02:22:49,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:49,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:49,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:49,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:22:49,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 192 treesize of output 146 [2022-07-21 02:22:49,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:22:49,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 354 treesize of output 332 [2022-07-21 02:22:49,582 INFO L390 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 388 treesize of output 328 [2022-07-21 02:22:49,585 INFO L390 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 322 treesize of output 272 [2022-07-21 02:22:49,590 INFO L390 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 28 treesize of output 24 [2022-07-21 02:22:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:22:50,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143434272] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:22:50,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:22:50,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 19] total 44 [2022-07-21 02:22:50,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320555032] [2022-07-21 02:22:50,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:22:50,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-07-21 02:22:50,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:22:50,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-07-21 02:22:50,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1547, Unknown=7, NotChecked=162, Total=1892 [2022-07-21 02:22:50,920 INFO L87 Difference]: Start difference. First operand 99 states and 124 transitions. Second operand has 44 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 44 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:00,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:23:00,307 INFO L93 Difference]: Finished difference Result 306 states and 367 transitions. [2022-07-21 02:23:00,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-07-21 02:23:00,307 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 44 states have internal predecessors, (148), 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 58 [2022-07-21 02:23:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:23:00,308 INFO L225 Difference]: With dead ends: 306 [2022-07-21 02:23:00,308 INFO L226 Difference]: Without dead ends: 304 [2022-07-21 02:23:00,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 121 SyntacticMatches, 5 SemanticMatches, 132 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5509 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=3078, Invalid=14215, Unknown=7, NotChecked=522, Total=17822 [2022-07-21 02:23:00,309 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 628 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 528 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 02:23:00,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 880 Invalid, 1633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 716 Invalid, 0 Unknown, 528 Unchecked, 0.7s Time] [2022-07-21 02:23:00,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-07-21 02:23:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 104. [2022-07-21 02:23:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 103 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:00,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2022-07-21 02:23:00,321 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 58 [2022-07-21 02:23:00,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:23:00,322 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2022-07-21 02:23:00,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 44 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:00,322 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2022-07-21 02:23:00,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 02:23:00,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:23:00,322 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:23:00,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-21 02:23:00,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-21 02:23:00,542 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:23:00,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:23:00,543 INFO L85 PathProgramCache]: Analyzing trace with hash 256918543, now seen corresponding path program 6 times [2022-07-21 02:23:00,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:23:00,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298612556] [2022-07-21 02:23:00,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:23:00,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:23:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:23:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:00,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:23:00,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298612556] [2022-07-21 02:23:00,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298612556] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:23:00,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799595304] [2022-07-21 02:23:00,862 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-21 02:23:00,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:23:00,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:23:00,864 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:23:00,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-21 02:23:01,226 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-07-21 02:23:01,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:23:01,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 108 conjunts are in the unsatisfiable core [2022-07-21 02:23:01,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:23:01,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:23:01,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:23:01,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:01,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:23:01,301 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:23:01,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:23:01,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:01,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:01,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:01,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:23:01,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,417 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:23:01,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,432 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:23:01,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:23:01,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,437 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:23:01,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:01,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:01,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,568 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:23:01,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 83 [2022-07-21 02:23:01,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:23:01,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2022-07-21 02:23:01,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:01,590 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:23:01,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:23:02,446 INFO L356 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2022-07-21 02:23:02,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 190 treesize of output 100 [2022-07-21 02:23:02,456 INFO L356 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-07-21 02:23:02,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-07-21 02:23:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:02,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:23:02,656 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:02,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 135 [2022-07-21 02:23:02,660 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:02,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 117 [2022-07-21 02:23:02,669 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2867 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_123| Int) (v_arrayElimArr_249 (Array Int Int)) (v_arrayElimArr_248 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_123| v_arrayElimArr_249)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_123| v_arrayElimArr_248))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_123| v_ArrVal_2867) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= 0 (select .cse0 (+ .cse1 4)))) (not (= (select v_arrayElimArr_249 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_123|) 0)) (not (= (select .cse0 (+ .cse1 8)) 2)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_248 0)))))))) is different from false [2022-07-21 02:23:02,705 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:02,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 221 [2022-07-21 02:23:02,709 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:02,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 203 [2022-07-21 02:23:02,722 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2867 (Array Int Int)) (v_arrayElimArr_251 (Array Int Int)) (v_arrayElimArr_250 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_123| Int) (v_ArrVal_2860 (Array Int Int)) (v_arrayElimArr_249 (Array Int Int)) (v_arrayElimArr_248 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_248 0))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_250) |v_ULTIMATE.start_main_~l~0#1.base_123| v_arrayElimArr_249)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_251) |v_ULTIMATE.start_main_~l~0#1.base_123| v_arrayElimArr_248))) (let ((.cse4 (select (select .cse6 .cse0) 0)) (.cse5 (select (select .cse3 .cse0) 0))) (let ((.cse1 (select (store (store |c_#memory_int| .cse0 v_ArrVal_2860) |v_ULTIMATE.start_main_~l~0#1.base_123| v_ArrVal_2867) (select (select .cse6 .cse4) .cse5))) (.cse2 (select (select .cse3 .cse4) .cse5))) (or (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_123|) 0)) (not (= (select .cse1 (+ .cse2 8)) 2)) (not (= (select |c_#valid| .cse0) 0)) (not (= (select v_arrayElimArr_249 0) 0)) (not (= (select v_arrayElimArr_250 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_251 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse1 (+ .cse2 4)) 0)))))))) is different from false [2022-07-21 02:23:02,784 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:02,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 375 treesize of output 303 [2022-07-21 02:23:02,789 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:02,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 291 treesize of output 219 [2022-07-21 02:23:02,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:02,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:02,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:02,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:02,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 155 treesize of output 107 [2022-07-21 02:23:02,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:02,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 329 treesize of output 305 [2022-07-21 02:23:02,801 INFO L390 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 338 treesize of output 284 [2022-07-21 02:23:02,821 INFO L390 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 278 treesize of output 234 [2022-07-21 02:23:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-07-21 02:23:03,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799595304] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:23:03,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:23:03,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 29 [2022-07-21 02:23:03,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987103543] [2022-07-21 02:23:03,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:23:03,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-21 02:23:03,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:23:03,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-21 02:23:03,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=626, Unknown=5, NotChecked=102, Total=812 [2022-07-21 02:23:03,401 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:04,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:23:04,663 INFO L93 Difference]: Finished difference Result 148 states and 181 transitions. [2022-07-21 02:23:04,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-21 02:23:04,663 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 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 58 [2022-07-21 02:23:04,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:23:04,664 INFO L225 Difference]: With dead ends: 148 [2022-07-21 02:23:04,664 INFO L226 Difference]: Without dead ends: 146 [2022-07-21 02:23:04,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=370, Invalid=2083, Unknown=5, NotChecked=194, Total=2652 [2022-07-21 02:23:04,664 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 112 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 236 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 02:23:04,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 732 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 357 Invalid, 0 Unknown, 236 Unchecked, 0.3s Time] [2022-07-21 02:23:04,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-07-21 02:23:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 83. [2022-07-21 02:23:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 82 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:04,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 105 transitions. [2022-07-21 02:23:04,675 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 105 transitions. Word has length 58 [2022-07-21 02:23:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:23:04,675 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 105 transitions. [2022-07-21 02:23:04,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 29 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 105 transitions. [2022-07-21 02:23:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-21 02:23:04,676 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:23:04,676 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:23:04,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-21 02:23:04,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-21 02:23:04,889 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:23:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:23:04,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1492842773, now seen corresponding path program 7 times [2022-07-21 02:23:04,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:23:04,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142682974] [2022-07-21 02:23:04,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:23:04,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:23:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:23:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:05,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:23:05,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142682974] [2022-07-21 02:23:05,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142682974] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:23:05,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932695701] [2022-07-21 02:23:05,136 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-21 02:23:05,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:23:05,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:23:05,137 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:23:05,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-21 02:23:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:23:05,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 108 conjunts are in the unsatisfiable core [2022-07-21 02:23:05,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:23:05,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:05,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:23:05,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:05,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:05,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:05,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:23:05,471 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:23:05,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:23:05,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:23:05,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:05,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:05,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,566 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:23:05,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 52 [2022-07-21 02:23:05,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:23:05,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,586 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:23:05,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:23:05,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:05,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:05,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-07-21 02:23:05,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,730 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-21 02:23:05,730 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 116 treesize of output 86 [2022-07-21 02:23:05,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:05,740 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:23:05,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:23:06,502 INFO L356 Elim1Store]: treesize reduction 194, result has 10.2 percent of original size [2022-07-21 02:23:06,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 251 treesize of output 121 [2022-07-21 02:23:06,517 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-21 02:23:06,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-21 02:23:06,522 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:06,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:23:06,630 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:06,634 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:06,642 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:06,645 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:06,670 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3044 (Array Int Int)) (v_ArrVal_3037 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_131|) 0)) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_131| (store v_ArrVal_3044 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_131| (store v_ArrVal_3037 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse5 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse1 (select (select .cse3 .cse4) .cse5)) (.cse2 (select (select .cse0 .cse4) .cse5))) (and (= (select (select .cse0 .cse1) .cse2) 0) (= (select (select .cse3 .cse1) .cse2) 0))))))) is different from false [2022-07-21 02:23:06,700 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:06,703 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:06,710 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:06,713 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:06,735 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:06,738 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:06,745 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:06,748 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:06,772 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:06,775 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:06,783 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:06,786 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:06,819 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:06,822 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:06,830 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:06,833 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:06,861 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 113 [2022-07-21 02:23:06,865 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 101 [2022-07-21 02:23:06,869 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 92 [2022-07-21 02:23:06,873 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 80 [2022-07-21 02:23:06,885 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 110 [2022-07-21 02:23:06,889 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 101 [2022-07-21 02:23:06,893 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 89 [2022-07-21 02:23:06,897 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:06,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 80 [2022-07-21 02:23:06,986 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_282 (Array Int Int)) (v_arrayElimArr_281 (Array Int Int)) (v_arrayElimArr_280 (Array Int Int)) (v_arrayElimArr_283 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int)) (let ((.cse0 (select v_arrayElimArr_282 0))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_281 0))) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_280 0))) (not (= (select v_arrayElimArr_283 0) 0)) (not (= (select |c_#valid| .cse0) 0)) (= (let ((.cse1 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_281) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_283)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_280) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_282))) (let ((.cse3 (select (select .cse2 .cse0) 0)) (.cse4 (select (select .cse1 .cse0) 0))) (select (select .cse1 (select (select .cse2 .cse3) .cse4)) (select (select .cse1 .cse3) .cse4)))) 0) (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_131|) 0))))) (forall ((v_arrayElimArr_286 (Array Int Int)) (v_arrayElimArr_285 (Array Int Int)) (v_arrayElimArr_284 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int) (v_arrayElimArr_287 (Array Int Int))) (let ((.cse5 (select v_arrayElimArr_286 0))) (or (not (= (select v_arrayElimArr_287 0) 0)) (not (= (select |c_#valid| .cse5) 0)) (= (let ((.cse9 (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_285) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_287)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_284) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_286))) (let ((.cse7 (select (select .cse6 .cse5) 0)) (.cse8 (select (select .cse9 .cse5) 0))) (select (select .cse6 (select (select .cse6 .cse7) .cse8)) (select (select .cse9 .cse7) .cse8)))) 0) (not (= (select (store |c_#valid| .cse5 1) |v_ULTIMATE.start_main_~l~0#1.base_131|) 0)) (not (= (select v_arrayElimArr_285 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_284 0))))))) is different from false [2022-07-21 02:23:07,097 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:07,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 135 [2022-07-21 02:23:07,103 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:07,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 123 [2022-07-21 02:23:07,124 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:07,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 132 [2022-07-21 02:23:07,129 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:07,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 123 [2022-07-21 02:23:07,214 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_282 (Array Int Int)) (v_arrayElimArr_281 (Array Int Int)) (v_arrayElimArr_280 (Array Int Int)) (v_arrayElimArr_291 (Array Int Int)) (v_arrayElimArr_290 (Array Int Int)) (v_arrayElimArr_283 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int)) (let ((.cse5 (select v_arrayElimArr_280 0))) (let ((.cse6 (store |c_#valid| .cse5 1)) (.cse4 (select v_arrayElimArr_282 0))) (or (not (= (select v_arrayElimArr_290 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_283 0) 0)) (not (= (select v_arrayElimArr_281 0) 0)) (= (let ((.cse0 (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_290) .cse4 v_arrayElimArr_281) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_283)) (.cse1 (store (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_291) .cse4 v_arrayElimArr_280) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_282))) (let ((.cse2 (select (select .cse1 .cse4) 0)) (.cse3 (select (select .cse0 .cse4) 0))) (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (select (select .cse0 .cse2) .cse3)))) 0) (not (= (select |c_#valid| .cse5) 0)) (not (= (select (store .cse6 .cse4 1) |v_ULTIMATE.start_main_~l~0#1.base_131|) 0)) (not (= (select .cse6 .cse4) 0)) (not (= (select v_arrayElimArr_291 0) |c_ULTIMATE.start_main_~l~0#1.base|)))))) (forall ((v_arrayElimArr_286 (Array Int Int)) (v_arrayElimArr_285 (Array Int Int)) (v_arrayElimArr_284 (Array Int Int)) (v_arrayElimArr_289 (Array Int Int)) (v_arrayElimArr_288 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_131| Int) (v_arrayElimArr_287 (Array Int Int))) (let ((.cse12 (select v_arrayElimArr_284 0))) (let ((.cse13 (store |c_#valid| .cse12 1)) (.cse11 (select v_arrayElimArr_286 0))) (or (not (= (select v_arrayElimArr_287 0) 0)) (= (let ((.cse10 (store (store (store |c_#memory_$Pointer$.offset| .cse12 v_arrayElimArr_288) .cse11 v_arrayElimArr_285) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_287)) (.cse7 (store (store (store |c_#memory_$Pointer$.base| .cse12 v_arrayElimArr_289) .cse11 v_arrayElimArr_284) |v_ULTIMATE.start_main_~l~0#1.base_131| v_arrayElimArr_286))) (let ((.cse8 (select (select .cse7 .cse11) 0)) (.cse9 (select (select .cse10 .cse11) 0))) (select (select .cse7 (select (select .cse7 .cse8) .cse9)) (select (select .cse10 .cse8) .cse9)))) 0) (not (= (select .cse13 .cse11) 0)) (not (= (select |c_#valid| .cse12) 0)) (not (= (select (store .cse13 .cse11 1) |v_ULTIMATE.start_main_~l~0#1.base_131|) 0)) (not (= (select v_arrayElimArr_288 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select v_arrayElimArr_285 0) 0)) (not (= (select v_arrayElimArr_289 0) |c_ULTIMATE.start_main_~l~0#1.base|))))))) is different from false [2022-07-21 02:23:07,385 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:07,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 177 [2022-07-21 02:23:07,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,431 INFO L356 Elim1Store]: treesize reduction 769, result has 2.7 percent of original size [2022-07-21 02:23:07,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 38134 treesize of output 34744 [2022-07-21 02:23:07,486 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:07,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34716 treesize of output 23230 [2022-07-21 02:23:07,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3504 treesize of output 3498 [2022-07-21 02:23:07,525 INFO L390 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 3546 treesize of output 2644 [2022-07-21 02:23:07,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,550 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-07-21 02:23:07,551 INFO L390 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 2604 treesize of output 2418 [2022-07-21 02:23:07,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,612 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-07-21 02:23:07,612 INFO L390 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 2284 treesize of output 1906 [2022-07-21 02:23:07,648 INFO L390 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 1241 treesize of output 1121 [2022-07-21 02:23:07,662 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-07-21 02:23:07,663 INFO L390 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 1096 treesize of output 1014 [2022-07-21 02:23:07,685 INFO L390 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 492 treesize of output 394 [2022-07-21 02:23:07,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,695 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:23:07,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:23:07,712 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:07,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 189 [2022-07-21 02:23:07,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,721 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-07-21 02:23:07,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11290 treesize of output 10988 [2022-07-21 02:23:07,737 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:07,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 10984 treesize of output 7178 [2022-07-21 02:23:07,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:07,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15052 treesize of output 14278 [2022-07-21 02:23:07,806 INFO L390 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 14280 treesize of output 13382 [2022-07-21 02:23:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,861 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13430 treesize of output 9328 [2022-07-21 02:23:07,889 INFO L390 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 9288 treesize of output 8902 [2022-07-21 02:23:07,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,948 INFO L390 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 8933 treesize of output 7697 [2022-07-21 02:23:07,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:07,973 INFO L390 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 7708 treesize of output 6682 [2022-07-21 02:23:08,025 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:23:08,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 31 [2022-07-21 02:23:08,690 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-21 02:23:08,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932695701] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:23:08,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:23:08,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 26 [2022-07-21 02:23:08,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255021703] [2022-07-21 02:23:08,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:23:08,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-21 02:23:08,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:23:08,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-21 02:23:08,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=451, Unknown=3, NotChecked=132, Total=650 [2022-07-21 02:23:08,692 INFO L87 Difference]: Start difference. First operand 83 states and 105 transitions. Second operand has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:09,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:23:09,131 INFO L93 Difference]: Finished difference Result 164 states and 201 transitions. [2022-07-21 02:23:09,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 02:23:09,132 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 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 64 [2022-07-21 02:23:09,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:23:09,132 INFO L225 Difference]: With dead ends: 164 [2022-07-21 02:23:09,132 INFO L226 Difference]: Without dead ends: 140 [2022-07-21 02:23:09,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=671, Unknown=3, NotChecked=162, Total=930 [2022-07-21 02:23:09,133 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 56 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 293 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:23:09,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1023 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 293 Unchecked, 0.2s Time] [2022-07-21 02:23:09,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-07-21 02:23:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 127. [2022-07-21 02:23:09,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.253968253968254) internal successors, (158), 126 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 158 transitions. [2022-07-21 02:23:09,149 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 158 transitions. Word has length 64 [2022-07-21 02:23:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:23:09,149 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 158 transitions. [2022-07-21 02:23:09,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 158 transitions. [2022-07-21 02:23:09,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-21 02:23:09,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:23:09,150 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:23:09,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-21 02:23:09,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-21 02:23:09,362 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:23:09,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:23:09,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1686621777, now seen corresponding path program 8 times [2022-07-21 02:23:09,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:23:09,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272430036] [2022-07-21 02:23:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:23:09,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:23:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:23:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:09,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:23:09,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272430036] [2022-07-21 02:23:09,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272430036] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:23:09,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919654577] [2022-07-21 02:23:09,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 02:23:09,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:23:09,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:23:09,605 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:23:09,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-21 02:23:09,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 02:23:09,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:23:09,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 108 conjunts are in the unsatisfiable core [2022-07-21 02:23:09,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:23:09,859 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:23:09,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:09,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:09,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:09,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:09,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:09,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:23:09,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:09,933 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:23:09,942 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:23:09,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:23:10,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:10,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:10,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-07-21 02:23:10,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,028 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:23:10,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 52 [2022-07-21 02:23:10,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,039 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:23:10,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:23:10,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:10,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:10,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,158 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-21 02:23:10,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 116 treesize of output 86 [2022-07-21 02:23:10,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2022-07-21 02:23:10,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:10,171 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:23:10,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:23:10,866 INFO L356 Elim1Store]: treesize reduction 194, result has 10.2 percent of original size [2022-07-21 02:23:10,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 251 treesize of output 121 [2022-07-21 02:23:10,878 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-21 02:23:10,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-21 02:23:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:10,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:23:10,972 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:10,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:10,975 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:10,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:10,983 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:10,983 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:10,986 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:10,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:11,005 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3213 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_140| Int) (v_ArrVal_3219 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_140|) 0)) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_140| (store v_ArrVal_3219 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_140| (store v_ArrVal_3213 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (let ((.cse4 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse5 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse1 (select (select .cse0 .cse4) .cse5)) (.cse2 (select (select .cse3 .cse4) .cse5))) (and (= (select (select .cse0 .cse1) .cse2) 0) (= (select (select .cse3 .cse1) .cse2) 0))))))) is different from false [2022-07-21 02:23:11,037 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:11,040 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:11,046 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:11,049 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:11,071 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:11,074 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:11,080 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:11,089 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:11,111 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:11,114 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:11,121 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:11,123 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:11,145 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:11,148 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:11,154 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:11,157 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:11,182 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 113 [2022-07-21 02:23:11,186 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 101 [2022-07-21 02:23:11,189 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 92 [2022-07-21 02:23:11,193 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 80 [2022-07-21 02:23:11,204 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 110 [2022-07-21 02:23:11,208 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 101 [2022-07-21 02:23:11,211 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 89 [2022-07-21 02:23:11,215 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 80 [2022-07-21 02:23:11,297 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_323 (Array Int Int)) (v_arrayElimArr_322 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_140| Int) (v_arrayElimArr_325 (Array Int Int)) (v_arrayElimArr_324 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_324 0))) (or (not (= (select v_arrayElimArr_325 0) 0)) (not (= (select v_arrayElimArr_322 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select |c_#valid| .cse0) 0)) (= (let ((.cse1 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_323) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_325)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_322) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_324))) (let ((.cse3 (select (select .cse2 .cse0) 0)) (.cse4 (select (select .cse1 .cse0) 0))) (select (select .cse1 (select (select .cse2 .cse3) .cse4)) (select (select .cse1 .cse3) .cse4)))) 0) (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_140|) 0)) (not (= (select v_arrayElimArr_323 0) |c_ULTIMATE.start_main_~l~0#1.offset|))))) (forall ((v_arrayElimArr_329 (Array Int Int)) (v_arrayElimArr_328 (Array Int Int)) (v_arrayElimArr_327 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_140| Int) (v_arrayElimArr_326 (Array Int Int))) (let ((.cse5 (select v_arrayElimArr_328 0))) (or (not (= (select |c_#valid| .cse5) 0)) (not (= (select v_arrayElimArr_329 0) 0)) (not (= (select (store |c_#valid| .cse5 1) |v_ULTIMATE.start_main_~l~0#1.base_140|) 0)) (not (= (select v_arrayElimArr_327 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (= (let ((.cse9 (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_327) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_329)) (.cse6 (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_326) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_328))) (let ((.cse7 (select (select .cse6 .cse5) 0)) (.cse8 (select (select .cse9 .cse5) 0))) (select (select .cse6 (select (select .cse6 .cse7) .cse8)) (select (select .cse9 .cse7) .cse8)))) 0) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_326 0))))))) is different from false [2022-07-21 02:23:11,425 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 132 [2022-07-21 02:23:11,430 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 123 [2022-07-21 02:23:11,451 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 135 [2022-07-21 02:23:11,457 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 123 [2022-07-21 02:23:11,550 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_330 (Array Int Int)) (v_arrayElimArr_323 (Array Int Int)) (v_arrayElimArr_322 (Array Int Int)) (v_arrayElimArr_331 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_140| Int) (v_arrayElimArr_325 (Array Int Int)) (v_arrayElimArr_324 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_322 0))) (let ((.cse6 (store |c_#valid| .cse0 1)) (.cse5 (select v_arrayElimArr_324 0))) (or (not (= (select v_arrayElimArr_325 0) 0)) (not (= (select |c_#valid| .cse0) 0)) (= (let ((.cse1 (store (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_330) .cse5 v_arrayElimArr_323) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_325)) (.cse2 (store (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_331) .cse5 v_arrayElimArr_322) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_324))) (let ((.cse3 (select (select .cse2 .cse5) 0)) (.cse4 (select (select .cse1 .cse5) 0))) (select (select .cse1 (select (select .cse2 .cse3) .cse4)) (select (select .cse1 .cse3) .cse4)))) 0) (not (= (select v_arrayElimArr_323 0) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_331 0))) (not (= (select .cse6 .cse5) 0)) (not (= (select v_arrayElimArr_330 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select (store .cse6 .cse5 1) |v_ULTIMATE.start_main_~l~0#1.base_140|) 0)))))) (forall ((v_arrayElimArr_329 (Array Int Int)) (v_arrayElimArr_328 (Array Int Int)) (v_arrayElimArr_333 (Array Int Int)) (v_arrayElimArr_332 (Array Int Int)) (v_arrayElimArr_327 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_140| Int) (v_arrayElimArr_326 (Array Int Int))) (let ((.cse7 (select v_arrayElimArr_326 0))) (let ((.cse8 (store |c_#valid| .cse7 1)) (.cse9 (select v_arrayElimArr_328 0))) (or (not (= (select v_arrayElimArr_327 0) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_332 0))) (not (= (select v_arrayElimArr_329 0) 0)) (not (= (select |c_#valid| .cse7) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_333 0))) (not (= (select (store .cse8 .cse9 1) |v_ULTIMATE.start_main_~l~0#1.base_140|) 0)) (not (= (select .cse8 .cse9) 0)) (= (let ((.cse13 (store (store (store |c_#memory_$Pointer$.offset| .cse7 v_arrayElimArr_332) .cse9 v_arrayElimArr_327) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_329)) (.cse10 (store (store (store |c_#memory_$Pointer$.base| .cse7 v_arrayElimArr_333) .cse9 v_arrayElimArr_326) |v_ULTIMATE.start_main_~l~0#1.base_140| v_arrayElimArr_328))) (let ((.cse11 (select (select .cse10 .cse9) 0)) (.cse12 (select (select .cse13 .cse9) 0))) (select (select .cse10 (select (select .cse10 .cse11) .cse12)) (select (select .cse13 .cse11) .cse12)))) 0)))))) is different from false [2022-07-21 02:23:11,736 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 189 [2022-07-21 02:23:11,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:11,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:11,744 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-07-21 02:23:11,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5606 treesize of output 5452 [2022-07-21 02:23:11,755 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:11,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 5448 treesize of output 3562 [2022-07-21 02:23:11,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:11,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:11,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7644 treesize of output 7254 [2022-07-21 02:23:11,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,836 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7302 treesize of output 5184 [2022-07-21 02:23:11,860 INFO L390 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 5144 treesize of output 4950 [2022-07-21 02:23:11,897 INFO L390 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 4952 treesize of output 4566 [2022-07-21 02:23:11,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,926 INFO L390 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 4608 treesize of output 4286 [2022-07-21 02:23:11,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:11,942 INFO L390 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 4277 treesize of output 3345 [2022-07-21 02:23:11,974 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:23:11,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 31 [2022-07-21 02:23:12,114 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:12,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 177 [2022-07-21 02:23:12,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:12,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:12,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:12,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:12,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:12,169 INFO L356 Elim1Store]: treesize reduction 765, result has 3.2 percent of original size [2022-07-21 02:23:12,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 644070 treesize of output 589564 [2022-07-21 02:23:12,642 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:12,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 589532 treesize of output 394494 [2022-07-21 02:23:12,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:12,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:12,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:12,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 59936 treesize of output 59930 [2022-07-21 02:23:13,132 INFO L390 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 59978 treesize of output 43844 [2022-07-21 02:23:13,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:13,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:13,254 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-07-21 02:23:13,254 INFO L390 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 43816 treesize of output 40746 [2022-07-21 02:23:14,864 INFO L390 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 37956 treesize of output 34242 [2022-07-21 02:23:14,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:14,975 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-07-21 02:23:14,975 INFO L390 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 34208 treesize of output 28070 [2022-07-21 02:23:15,504 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-07-21 02:23:15,505 INFO L390 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 3744 treesize of output 3374 [2022-07-21 02:23:15,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:15,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:15,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:15,560 INFO L356 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-07-21 02:23:15,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 26 [2022-07-21 02:23:15,568 INFO L390 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 208 treesize of output 180 [2022-07-21 02:23:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-21 02:23:15,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919654577] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:23:15,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:23:15,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 26 [2022-07-21 02:23:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176551271] [2022-07-21 02:23:15,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:23:15,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-21 02:23:15,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:23:15,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-21 02:23:15,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=451, Unknown=3, NotChecked=132, Total=650 [2022-07-21 02:23:15,586 INFO L87 Difference]: Start difference. First operand 127 states and 158 transitions. Second operand has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:16,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:23:16,003 INFO L93 Difference]: Finished difference Result 167 states and 204 transitions. [2022-07-21 02:23:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 02:23:16,004 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 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 64 [2022-07-21 02:23:16,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:23:16,004 INFO L225 Difference]: With dead ends: 167 [2022-07-21 02:23:16,004 INFO L226 Difference]: Without dead ends: 132 [2022-07-21 02:23:16,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=671, Unknown=3, NotChecked=162, Total=930 [2022-07-21 02:23:16,005 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 61 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 326 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:23:16,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 866 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 326 Unchecked, 0.2s Time] [2022-07-21 02:23:16,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-07-21 02:23:16,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 121. [2022-07-21 02:23:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.25) internal successors, (150), 120 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:16,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 150 transitions. [2022-07-21 02:23:16,020 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 150 transitions. Word has length 64 [2022-07-21 02:23:16,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:23:16,020 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 150 transitions. [2022-07-21 02:23:16,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:16,021 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2022-07-21 02:23:16,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-21 02:23:16,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:23:16,021 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:23:16,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-21 02:23:16,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:23:16,235 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:23:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:23:16,236 INFO L85 PathProgramCache]: Analyzing trace with hash 924003759, now seen corresponding path program 9 times [2022-07-21 02:23:16,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:23:16,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056756328] [2022-07-21 02:23:16,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:23:16,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:23:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:23:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:16,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:23:16,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056756328] [2022-07-21 02:23:16,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056756328] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:23:16,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866953841] [2022-07-21 02:23:16,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-21 02:23:16,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:23:16,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:23:16,472 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:23:16,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-21 02:23:17,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-07-21 02:23:17,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:23:17,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 108 conjunts are in the unsatisfiable core [2022-07-21 02:23:17,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:23:17,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:17,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:23:17,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:17,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:17,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:17,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:23:17,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 02:23:17,206 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:23:17,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:23:17,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:17,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:17,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,279 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:23:17,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 52 [2022-07-21 02:23:17,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:23:17,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,294 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:23:17,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:23:17,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:17,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:17,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,401 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-21 02:23:17,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 116 treesize of output 86 [2022-07-21 02:23:17,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2022-07-21 02:23:17,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:17,415 INFO L356 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-07-21 02:23:17,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2022-07-21 02:23:18,102 INFO L356 Elim1Store]: treesize reduction 194, result has 10.2 percent of original size [2022-07-21 02:23:18,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 251 treesize of output 121 [2022-07-21 02:23:18,113 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-21 02:23:18,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-21 02:23:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:18,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:23:18,236 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:18,240 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:18,247 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:18,251 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:18,273 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3393 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_149| Int) (v_ArrVal_3389 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_149|) 0)) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_149| (store v_ArrVal_3389 0 |c_ULTIMATE.start_main_~l~0#1.offset|))) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_149| (store v_ArrVal_3393 0 |c_ULTIMATE.start_main_~l~0#1.base|)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse5 (select (select .cse0 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse1 (select (select .cse3 .cse4) .cse5)) (.cse2 (select (select .cse0 .cse4) .cse5))) (and (= (select (select .cse0 .cse1) .cse2) 0) (= (select (select .cse3 .cse1) .cse2) 0))))))) is different from false [2022-07-21 02:23:18,278 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:18,281 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:18,289 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:18,292 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:18,317 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:18,321 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:18,328 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:18,332 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:18,357 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:18,360 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:18,368 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:18,371 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:18,397 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2022-07-21 02:23:18,400 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-07-21 02:23:18,408 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2022-07-21 02:23:18,412 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2022-07-21 02:23:18,441 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 110 [2022-07-21 02:23:18,445 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 101 [2022-07-21 02:23:18,449 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 89 [2022-07-21 02:23:18,454 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 80 [2022-07-21 02:23:18,469 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 113 [2022-07-21 02:23:18,474 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 101 [2022-07-21 02:23:18,479 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 92 [2022-07-21 02:23:18,485 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 80 [2022-07-21 02:23:18,596 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~l~0#1.base_149| Int) (v_arrayElimArr_367 (Array Int Int)) (v_arrayElimArr_366 (Array Int Int)) (v_arrayElimArr_365 (Array Int Int)) (v_arrayElimArr_364 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_366 0))) (or (not (= (select v_arrayElimArr_365 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select (store |c_#valid| .cse0 1) |v_ULTIMATE.start_main_~l~0#1.base_149|) 0)) (= (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse0 v_arrayElimArr_365) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_367)) (.cse1 (store (store |c_#memory_$Pointer$.base| .cse0 v_arrayElimArr_364) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_366))) (let ((.cse2 (select (select .cse1 .cse0) 0)) (.cse3 (select (select .cse4 .cse0) 0))) (select (select .cse1 (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3)))) 0) (not (= (select v_arrayElimArr_364 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select |c_#valid| .cse0) 0)) (not (= 0 (select v_arrayElimArr_367 0)))))) (forall ((v_arrayElimArr_370 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_149| Int) (v_arrayElimArr_371 (Array Int Int)) (v_arrayElimArr_369 (Array Int Int)) (v_arrayElimArr_368 (Array Int Int))) (let ((.cse5 (select v_arrayElimArr_370 0))) (or (not (= (select v_arrayElimArr_369 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= 0 (select (store |c_#valid| .cse5 1) |v_ULTIMATE.start_main_~l~0#1.base_149|))) (= (let ((.cse6 (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_369) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_371)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_368) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_370))) (let ((.cse8 (select (select .cse7 .cse5) 0)) (.cse9 (select (select .cse6 .cse5) 0))) (select (select .cse6 (select (select .cse7 .cse8) .cse9)) (select (select .cse6 .cse8) .cse9)))) 0) (not (= (select |c_#valid| .cse5) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_368 0))) (not (= (select v_arrayElimArr_371 0) 0)))))) is different from false [2022-07-21 02:23:18,723 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 135 [2022-07-21 02:23:18,728 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 123 [2022-07-21 02:23:18,751 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 132 [2022-07-21 02:23:18,756 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:18,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 123 [2022-07-21 02:23:18,855 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~l~0#1.base_149| Int) (v_arrayElimArr_373 (Array Int Int)) (v_arrayElimArr_372 (Array Int Int)) (v_arrayElimArr_367 (Array Int Int)) (v_arrayElimArr_366 (Array Int Int)) (v_arrayElimArr_365 (Array Int Int)) (v_arrayElimArr_364 (Array Int Int))) (let ((.cse6 (select v_arrayElimArr_364 0))) (let ((.cse0 (store |c_#valid| .cse6 1)) (.cse1 (select v_arrayElimArr_366 0))) (or (not (= (select v_arrayElimArr_373 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse0 .cse1) 0)) (= (let ((.cse5 (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_arrayElimArr_372) .cse1 v_arrayElimArr_365) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_367)) (.cse2 (store (store (store |c_#memory_$Pointer$.base| .cse6 v_arrayElimArr_373) .cse1 v_arrayElimArr_364) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_366))) (let ((.cse3 (select (select .cse2 .cse1) 0)) (.cse4 (select (select .cse5 .cse1) 0))) (select (select .cse2 (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4)))) 0) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_372 0))) (not (= 0 (select v_arrayElimArr_367 0))) (not (= (select (store .cse0 .cse1 1) |v_ULTIMATE.start_main_~l~0#1.base_149|) 0)) (not (= (select |c_#valid| .cse6) 0)) (not (= (select v_arrayElimArr_365 0) 0)))))) (forall ((v_arrayElimArr_370 (Array Int Int)) (v_arrayElimArr_374 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_149| Int) (v_arrayElimArr_371 (Array Int Int)) (v_arrayElimArr_375 (Array Int Int)) (v_arrayElimArr_369 (Array Int Int)) (v_arrayElimArr_368 (Array Int Int))) (let ((.cse7 (select v_arrayElimArr_368 0))) (let ((.cse8 (store |c_#valid| .cse7 1)) (.cse9 (select v_arrayElimArr_370 0))) (or (not (= (select |c_#valid| .cse7) 0)) (not (= (select .cse8 .cse9) 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_375 0))) (= (let ((.cse10 (store (store (store |c_#memory_$Pointer$.offset| .cse7 v_arrayElimArr_374) .cse9 v_arrayElimArr_369) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_371)) (.cse11 (store (store (store |c_#memory_$Pointer$.base| .cse7 v_arrayElimArr_375) .cse9 v_arrayElimArr_368) |v_ULTIMATE.start_main_~l~0#1.base_149| v_arrayElimArr_370))) (let ((.cse12 (select (select .cse11 .cse9) 0)) (.cse13 (select (select .cse10 .cse9) 0))) (select (select .cse10 (select (select .cse11 .cse12) .cse13)) (select (select .cse10 .cse12) .cse13)))) 0) (not (= (select v_arrayElimArr_369 0) 0)) (not (= (select v_arrayElimArr_374 0) |c_ULTIMATE.start_main_~l~0#1.offset|)) (not (= (select (store .cse8 .cse9 1) |v_ULTIMATE.start_main_~l~0#1.base_149|) 0)) (not (= (select v_arrayElimArr_371 0) 0))))))) is different from false [2022-07-21 02:23:19,042 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:19,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 189 [2022-07-21 02:23:19,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,051 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-07-21 02:23:19,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11278 treesize of output 10976 [2022-07-21 02:23:19,069 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:19,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 10972 treesize of output 7166 [2022-07-21 02:23:19,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7424 treesize of output 7034 [2022-07-21 02:23:19,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,116 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7082 treesize of output 5092 [2022-07-21 02:23:19,133 INFO L390 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 5052 treesize of output 4858 [2022-07-21 02:23:19,164 INFO L390 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 4860 treesize of output 4474 [2022-07-21 02:23:19,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,192 INFO L390 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 4516 treesize of output 4066 [2022-07-21 02:23:19,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,207 INFO L390 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 4057 treesize of output 3345 [2022-07-21 02:23:19,264 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:23:19,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 31 [2022-07-21 02:23:19,360 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:19,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 177 [2022-07-21 02:23:19,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,406 INFO L356 Elim1Store]: treesize reduction 769, result has 2.7 percent of original size [2022-07-21 02:23:19,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 39338 treesize of output 35948 [2022-07-21 02:23:19,454 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:19,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35920 treesize of output 24050 [2022-07-21 02:23:19,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3660 treesize of output 3654 [2022-07-21 02:23:19,502 INFO L390 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 3702 treesize of output 2736 [2022-07-21 02:23:19,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,522 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-07-21 02:23:19,523 INFO L390 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 2696 treesize of output 2510 [2022-07-21 02:23:19,588 INFO L390 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 2373 treesize of output 2129 [2022-07-21 02:23:19,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:19,606 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-07-21 02:23:19,606 INFO L390 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 2104 treesize of output 1726 [2022-07-21 02:23:19,652 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-07-21 02:23:19,653 INFO L390 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 816 treesize of output 734 [2022-07-21 02:23:19,664 INFO L390 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 260 treesize of output 210 [2022-07-21 02:23:19,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:19,673 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-21 02:23:19,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2022-07-21 02:23:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-21 02:23:19,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866953841] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:23:19,686 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:23:19,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 26 [2022-07-21 02:23:19,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475372189] [2022-07-21 02:23:19,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:23:19,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-21 02:23:19,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:23:19,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-21 02:23:19,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=451, Unknown=3, NotChecked=132, Total=650 [2022-07-21 02:23:19,688 INFO L87 Difference]: Start difference. First operand 121 states and 150 transitions. Second operand has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:20,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:23:20,139 INFO L93 Difference]: Finished difference Result 177 states and 214 transitions. [2022-07-21 02:23:20,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 02:23:20,140 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 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 64 [2022-07-21 02:23:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:23:20,140 INFO L225 Difference]: With dead ends: 177 [2022-07-21 02:23:20,140 INFO L226 Difference]: Without dead ends: 97 [2022-07-21 02:23:20,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=668, Unknown=3, NotChecked=162, Total=930 [2022-07-21 02:23:20,141 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 69 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 465 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 02:23:20,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 931 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 192 Invalid, 0 Unknown, 465 Unchecked, 0.2s Time] [2022-07-21 02:23:20,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-07-21 02:23:20,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2022-07-21 02:23:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 87 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 112 transitions. [2022-07-21 02:23:20,152 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 112 transitions. Word has length 64 [2022-07-21 02:23:20,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:23:20,153 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 112 transitions. [2022-07-21 02:23:20,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 02:23:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2022-07-21 02:23:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 02:23:20,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:23:20,154 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:23:20,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-21 02:23:20,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:23:20,364 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:23:20,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:23:20,364 INFO L85 PathProgramCache]: Analyzing trace with hash -377962859, now seen corresponding path program 8 times [2022-07-21 02:23:20,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:23:20,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385847001] [2022-07-21 02:23:20,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:23:20,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:23:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:23:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 23 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:20,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:23:20,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385847001] [2022-07-21 02:23:20,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385847001] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 02:23:20,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616443143] [2022-07-21 02:23:20,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 02:23:20,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 02:23:20,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:23:20,736 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 02:23:20,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-21 02:23:21,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 02:23:21,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 02:23:21,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 134 conjunts are in the unsatisfiable core [2022-07-21 02:23:21,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 02:23:21,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 02:23:21,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 02:23:21,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:21,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 02:23:21,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-07-21 02:23:21,095 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-07-21 02:23:21,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-07-21 02:23:21,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:21,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:21,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-07-21 02:23:21,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,213 INFO L356 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-07-21 02:23:21,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 49 [2022-07-21 02:23:21,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 02:23:21,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-07-21 02:23:21,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:21,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:21,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,370 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-21 02:23:21,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 83 [2022-07-21 02:23:21,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,388 INFO L356 Elim1Store]: treesize reduction 54, result has 38.6 percent of original size [2022-07-21 02:23:21,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 73 [2022-07-21 02:23:21,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-07-21 02:23:21,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2022-07-21 02:23:21,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:21,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-07-21 02:23:21,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,597 INFO L356 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-07-21 02:23:21,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 199 treesize of output 117 [2022-07-21 02:23:21,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2022-07-21 02:23:21,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:21,617 INFO L356 Elim1Store]: treesize reduction 4, result has 83.3 percent of original size [2022-07-21 02:23:21,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 36 [2022-07-21 02:23:21,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2022-07-21 02:23:23,964 INFO L356 Elim1Store]: treesize reduction 182, result has 15.7 percent of original size [2022-07-21 02:23:23,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 325 treesize of output 151 [2022-07-21 02:23:23,979 INFO L356 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2022-07-21 02:23:23,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 34 [2022-07-21 02:23:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:23:24,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 02:23:24,460 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:24,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 307 treesize of output 271 [2022-07-21 02:23:24,464 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:24,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 265 treesize of output 229 [2022-07-21 02:23:24,476 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3609 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_158| Int) (v_arrayElimArr_387 (Array Int Int)) (v_arrayElimArr_386 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_387)) (.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_386))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|)) (.cse7 (select (select .cse2 |c_ULTIMATE.start_main_~l~0#1.base|) |c_ULTIMATE.start_main_~l~0#1.offset|))) (let ((.cse3 (select (select .cse5 .cse6) .cse7)) (.cse4 (select (select .cse2 .cse6) .cse7))) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_main_~l~0#1.base_158| v_ArrVal_3609) (select (select .cse5 .cse3) .cse4))) (.cse1 (select (select .cse2 .cse3) .cse4))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~l~0#1.base_158|) 0)) (not (= (select v_arrayElimArr_386 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_387 0))) (not (= 3 (select .cse0 (+ .cse1 8)))) (not (= (select .cse0 (+ .cse1 4)) 1)))))))) is different from false [2022-07-21 02:23:24,535 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:24,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 577 treesize of output 515 [2022-07-21 02:23:24,540 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:24,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 507 treesize of output 445 [2022-07-21 02:23:24,559 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3609 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_158| Int) (v_arrayElimArr_389 (Array Int Int)) (v_arrayElimArr_388 (Array Int Int)) (v_arrayElimArr_387 (Array Int Int)) (v_arrayElimArr_386 (Array Int Int)) (v_ArrVal_3602 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_386 0))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| .cse3 v_arrayElimArr_389) |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_387)) (.cse7 (store (store |c_#memory_$Pointer$.base| .cse3 v_arrayElimArr_388) |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_386)) (.cse0 (select v_arrayElimArr_387 0))) (let ((.cse8 (select (select .cse7 .cse3) .cse0)) (.cse9 (select (select .cse4 .cse3) .cse0))) (let ((.cse5 (select (select .cse7 .cse8) .cse9)) (.cse6 (select (select .cse4 .cse8) .cse9))) (let ((.cse1 (select (store (store |c_#memory_int| .cse3 v_ArrVal_3602) |v_ULTIMATE.start_main_~l~0#1.base_158| v_ArrVal_3609) (select (select .cse7 .cse5) .cse6))) (.cse2 (select (select .cse4 .cse5) .cse6))) (or (not (= |c_ULTIMATE.start_main_~l~0#1.base| (select v_arrayElimArr_388 .cse0))) (not (= (select .cse1 (+ .cse2 4)) 1)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_389 .cse0))) (not (= .cse0 0)) (not (= (select (store |c_#valid| .cse3 1) |v_ULTIMATE.start_main_~l~0#1.base_158|) 0)) (not (= 3 (select .cse1 (+ .cse2 8)))) (not (= (select |c_#valid| .cse3) 0))))))))) is different from false [2022-07-21 02:23:24,645 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:24,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 731 treesize of output 695 [2022-07-21 02:23:24,650 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:24,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 689 treesize of output 653 [2022-07-21 02:23:24,678 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_391 (Array Int Int)) (v_arrayElimArr_390 (Array Int Int)) (v_ArrVal_3609 (Array Int Int)) (v_ArrVal_3595 (Array Int Int)) (|v_ULTIMATE.start_main_~l~0#1.base_158| Int) (v_arrayElimArr_389 (Array Int Int)) (v_arrayElimArr_388 (Array Int Int)) (v_arrayElimArr_387 (Array Int Int)) (v_arrayElimArr_386 (Array Int Int)) (v_ArrVal_3602 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_387 0))) (let ((.cse5 (select v_arrayElimArr_388 .cse0)) (.cse2 (select v_arrayElimArr_386 0))) (let ((.cse6 (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_arrayElimArr_390) .cse2 v_arrayElimArr_389) |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_387)) (.cse9 (store (store (store |c_#memory_$Pointer$.base| .cse5 v_arrayElimArr_391) .cse2 v_arrayElimArr_388) |v_ULTIMATE.start_main_~l~0#1.base_158| v_arrayElimArr_386))) (let ((.cse10 (select (select .cse9 .cse2) .cse0)) (.cse11 (select (select .cse6 .cse2) .cse0))) (let ((.cse7 (select (select .cse9 .cse10) .cse11)) (.cse8 (select (select .cse6 .cse10) .cse11))) (let ((.cse1 (store |c_#valid| .cse5 1)) (.cse3 (select (store (store (store |c_#memory_int| .cse5 v_ArrVal_3595) .cse2 v_ArrVal_3602) |v_ULTIMATE.start_main_~l~0#1.base_158| v_ArrVal_3609) (select (select .cse9 .cse7) .cse8))) (.cse4 (select (select .cse6 .cse7) .cse8))) (or (not (= (select v_arrayElimArr_389 .cse0) 0)) (not (= (select (store .cse1 .cse2 1) |v_ULTIMATE.start_main_~l~0#1.base_158|) 0)) (not (= (select v_arrayElimArr_391 0) |c_ULTIMATE.start_main_~l~0#1.base|)) (not (= (select .cse3 (+ 8 .cse4)) 3)) (not (= .cse0 0)) (not (= |c_ULTIMATE.start_main_~l~0#1.offset| (select v_arrayElimArr_390 0))) (not (= (select .cse1 .cse2) 0)) (not (= (select |c_#valid| .cse5) 0)) (not (= (select .cse3 (+ 4 .cse4)) 1)))))))))) is different from false [2022-07-21 02:23:24,810 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:24,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 993 treesize of output 835 [2022-07-21 02:23:24,818 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 02:23:24,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 825 treesize of output 667 [2022-07-21 02:23:24,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:24,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:24,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:24,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 325 treesize of output 207 [2022-07-21 02:23:24,832 INFO L390 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 275 treesize of output 237 [2022-07-21 02:23:24,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 02:23:24,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:24,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:24,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13879 treesize of output 13489 [2022-07-21 02:23:24,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:24,901 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13545 treesize of output 12817 [2022-07-21 02:23:24,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:24,935 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12811 treesize of output 9773 [2022-07-21 02:23:25,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 02:23:25,123 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9620 treesize of output 6640 [2022-07-21 02:23:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-07-21 02:23:26,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616443143] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 02:23:26,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 02:23:26,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 15] total 41 [2022-07-21 02:23:26,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124768644] [2022-07-21 02:23:26,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 02:23:26,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-21 02:23:26,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:23:26,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-21 02:23:26,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1311, Unknown=3, NotChecked=222, Total=1640 [2022-07-21 02:23:26,032 INFO L87 Difference]: Start difference. First operand 88 states and 112 transitions. Second operand has 41 states, 41 states have (on average 4.585365853658536) internal successors, (188), 41 states have internal predecessors, (188), 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)