./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/pcomp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae 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/array-fpi/pcomp.c -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 1472da9c0a8f011e4f758f37d66a1227b497d4a96142a431b3f2f304a275b1b7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 00:27:58,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 00:27:58,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 00:27:58,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 00:27:58,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 00:27:58,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 00:27:58,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 00:27:58,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 00:27:58,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 00:27:58,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 00:27:58,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 00:27:58,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 00:27:58,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 00:27:58,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 00:27:58,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 00:27:58,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 00:27:58,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 00:27:58,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 00:27:58,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 00:27:58,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 00:27:58,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 00:27:58,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 00:27:58,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 00:27:58,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 00:27:58,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 00:27:58,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 00:27:58,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 00:27:58,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 00:27:58,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 00:27:58,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 00:27:58,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 00:27:58,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 00:27:58,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 00:27:58,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 00:27:58,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 00:27:58,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 00:27:58,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 00:27:58,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 00:27:58,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 00:27:58,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 00:27:58,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 00:27:58,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 00:27:58,286 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 00:27:58,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 00:27:58,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 00:27:58,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 00:27:58,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 00:27:58,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 00:27:58,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 00:27:58,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 00:27:58,289 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 00:27:58,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 00:27:58,289 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 00:27:58,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 00:27:58,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 00:27:58,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 00:27:58,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 00:27:58,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 00:27:58,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 00:27:58,290 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 00:27:58,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 00:27:58,291 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 00:27:58,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 00:27:58,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 00:27:58,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 00:27:58,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 00:27:58,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 00:27:58,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 00:27:58,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 00:27:58,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 00:27:58,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 00:27:58,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 00:27:58,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 00:27:58,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 00:27:58,293 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 00:27:58,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 00:27:58,293 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 00:27:58,293 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1472da9c0a8f011e4f758f37d66a1227b497d4a96142a431b3f2f304a275b1b7 [2023-02-16 00:27:58,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 00:27:58,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 00:27:58,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 00:27:58,498 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 00:27:58,498 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 00:27:58,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/pcomp.c [2023-02-16 00:27:59,444 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 00:27:59,627 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 00:27:59,627 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/pcomp.c [2023-02-16 00:27:59,632 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14ce0820f/f40683567cdd48fdb345819c4eed6ae2/FLAG97b6afe61 [2023-02-16 00:27:59,646 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14ce0820f/f40683567cdd48fdb345819c4eed6ae2 [2023-02-16 00:27:59,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 00:27:59,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 00:27:59,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 00:27:59,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 00:27:59,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 00:27:59,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38939dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59, skipping insertion in model container [2023-02-16 00:27:59,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 00:27:59,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 00:27:59,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/pcomp.c[588,601] [2023-02-16 00:27:59,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 00:27:59,817 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 00:27:59,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/pcomp.c[588,601] [2023-02-16 00:27:59,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 00:27:59,843 INFO L208 MainTranslator]: Completed translation [2023-02-16 00:27:59,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59 WrapperNode [2023-02-16 00:27:59,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 00:27:59,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 00:27:59,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 00:27:59,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 00:27:59,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,882 INFO L138 Inliner]: procedures = 16, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2023-02-16 00:27:59,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 00:27:59,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 00:27:59,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 00:27:59,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 00:27:59,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,913 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 00:27:59,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 00:27:59,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 00:27:59,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 00:27:59,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (1/1) ... [2023-02-16 00:27:59,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 00:27:59,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:27:59,938 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) [2023-02-16 00:27:59,948 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 [2023-02-16 00:27:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 00:27:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 00:27:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-16 00:27:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-16 00:27:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 00:27:59,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 00:27:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-16 00:28:00,010 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 00:28:00,014 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 00:28:00,177 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 00:28:00,181 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 00:28:00,181 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-16 00:28:00,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:28:00 BoogieIcfgContainer [2023-02-16 00:28:00,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 00:28:00,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 00:28:00,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 00:28:00,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 00:28:00,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:27:59" (1/3) ... [2023-02-16 00:28:00,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f84e30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:28:00, skipping insertion in model container [2023-02-16 00:28:00,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:59" (2/3) ... [2023-02-16 00:28:00,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f84e30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:28:00, skipping insertion in model container [2023-02-16 00:28:00,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:28:00" (3/3) ... [2023-02-16 00:28:00,202 INFO L112 eAbstractionObserver]: Analyzing ICFG pcomp.c [2023-02-16 00:28:00,228 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 00:28:00,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 00:28:00,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 00:28:00,279 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@706e7ab6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 00:28:00,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 00:28:00,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-16 00:28:00,286 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:00,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:00,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:00,290 INFO L85 PathProgramCache]: Analyzing trace with hash -592971038, now seen corresponding path program 1 times [2023-02-16 00:28:00,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:00,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214815291] [2023-02-16 00:28:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:00,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:28:00,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:00,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214815291] [2023-02-16 00:28:00,460 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 00:28:00,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683529327] [2023-02-16 00:28:00,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:00,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:00,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:00,463 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) [2023-02-16 00:28:00,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 00:28:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:28:00,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 00:28:00,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:00,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 00:28:00,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683529327] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:28:00,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:28:00,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 00:28:00,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815648397] [2023-02-16 00:28:00,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:28:00,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 00:28:00,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:00,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 00:28:00,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 00:28:00,641 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:00,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:00,651 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2023-02-16 00:28:00,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 00:28:00,653 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-16 00:28:00,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:00,661 INFO L225 Difference]: With dead ends: 44 [2023-02-16 00:28:00,661 INFO L226 Difference]: Without dead ends: 20 [2023-02-16 00:28:00,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 00:28:00,665 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:00,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:28:00,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-16 00:28:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-16 00:28:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-02-16 00:28:00,691 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2023-02-16 00:28:00,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:00,691 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-02-16 00:28:00,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:00,692 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-02-16 00:28:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-16 00:28:00,693 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:00,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:00,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-16 00:28:00,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-16 00:28:00,899 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:00,900 INFO L85 PathProgramCache]: Analyzing trace with hash 108093540, now seen corresponding path program 1 times [2023-02-16 00:28:00,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:00,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403837494] [2023-02-16 00:28:00,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:00,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:00,941 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:00,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061872142] [2023-02-16 00:28:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:00,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:00,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:00,954 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) [2023-02-16 00:28:00,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 00:28:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:28:01,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-16 00:28:01,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:01,210 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2023-02-16 00:28:01,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2023-02-16 00:28:01,230 INFO L350 Elim1Store]: Elim1 eliminated variable 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 8 treesize of output 7 [2023-02-16 00:28:01,256 INFO L350 Elim1Store]: Elim1 eliminated variable 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 8 treesize of output 7 [2023-02-16 00:28:01,272 INFO L350 Elim1Store]: Elim1 eliminated variable 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 8 treesize of output 7 [2023-02-16 00:28:01,424 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:01,443 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2023-02-16 00:28:01,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 112 treesize of output 111 [2023-02-16 00:28:01,490 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:01,580 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:01,583 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:01,584 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:01,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 103 [2023-02-16 00:28:01,598 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:01,604 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:01,744 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 16 treesize of output 5 [2023-02-16 00:28:01,746 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:01,756 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:01,803 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 20 [2023-02-16 00:28:01,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:01,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 00:28:01,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:01,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403837494] [2023-02-16 00:28:01,808 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:01,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061872142] [2023-02-16 00:28:01,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061872142] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:28:01,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:28:01,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 00:28:01,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580177225] [2023-02-16 00:28:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:28:01,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 00:28:01,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:01,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 00:28:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 00:28:01,810 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:01,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:01,867 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2023-02-16 00:28:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 00:28:01,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-16 00:28:01,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:01,868 INFO L225 Difference]: With dead ends: 39 [2023-02-16 00:28:01,869 INFO L226 Difference]: Without dead ends: 37 [2023-02-16 00:28:01,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-16 00:28:01,870 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 14 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:01,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 65 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:28:01,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-16 00:28:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2023-02-16 00:28:01,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-02-16 00:28:01,874 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 14 [2023-02-16 00:28:01,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:01,874 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-02-16 00:28:01,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:01,875 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-02-16 00:28:01,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-16 00:28:01,875 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:01,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:01,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-16 00:28:02,080 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,SelfDestructingSolverStorable1 [2023-02-16 00:28:02,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:02,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:02,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1850906398, now seen corresponding path program 1 times [2023-02-16 00:28:02,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:02,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917905379] [2023-02-16 00:28:02,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:02,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:02,112 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:02,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1341089934] [2023-02-16 00:28:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:02,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:02,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:02,127 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) [2023-02-16 00:28:02,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 00:28:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:28:02,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 00:28:02,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:02,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:02,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 00:28:02,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:02,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917905379] [2023-02-16 00:28:02,197 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:02,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341089934] [2023-02-16 00:28:02,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341089934] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:28:02,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:28:02,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 00:28:02,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229740395] [2023-02-16 00:28:02,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:28:02,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 00:28:02,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:02,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 00:28:02,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 00:28:02,199 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:02,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:02,263 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2023-02-16 00:28:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 00:28:02,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2023-02-16 00:28:02,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:02,264 INFO L225 Difference]: With dead ends: 62 [2023-02-16 00:28:02,265 INFO L226 Difference]: Without dead ends: 50 [2023-02-16 00:28:02,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-16 00:28:02,266 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 29 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:02,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:28:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-16 00:28:02,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2023-02-16 00:28:02,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2) internal successors, (36), 30 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) [2023-02-16 00:28:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-16 00:28:02,270 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 16 [2023-02-16 00:28:02,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:02,270 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-16 00:28:02,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:02,270 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-16 00:28:02,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-16 00:28:02,271 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:02,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:02,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 00:28:02,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:02,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:02,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:02,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1060218526, now seen corresponding path program 1 times [2023-02-16 00:28:02,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:02,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127333560] [2023-02-16 00:28:02,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:02,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:02,507 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:02,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623190821] [2023-02-16 00:28:02,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:02,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:02,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:02,509 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) [2023-02-16 00:28:02,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 00:28:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:28:02,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 00:28:02,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:02,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:28:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:02,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:02,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127333560] [2023-02-16 00:28:02,588 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:02,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623190821] [2023-02-16 00:28:02,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623190821] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:28:02,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:28:02,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-02-16 00:28:02,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123694138] [2023-02-16 00:28:02,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:28:02,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 00:28:02,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:02,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 00:28:02,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 00:28:02,591 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:02,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:02,669 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2023-02-16 00:28:02,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 00:28:02,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-16 00:28:02,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:02,670 INFO L225 Difference]: With dead ends: 53 [2023-02-16 00:28:02,670 INFO L226 Difference]: Without dead ends: 44 [2023-02-16 00:28:02,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-02-16 00:28:02,671 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 43 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:02,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 44 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:28:02,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-02-16 00:28:02,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 30. [2023-02-16 00:28:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2023-02-16 00:28:02,675 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 16 [2023-02-16 00:28:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:02,675 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2023-02-16 00:28:02,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-02-16 00:28:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-16 00:28:02,676 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:02,676 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:02,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 00:28:02,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:02,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:02,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1120615462, now seen corresponding path program 1 times [2023-02-16 00:28:02,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:02,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355094517] [2023-02-16 00:28:02,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:02,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:02,894 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:02,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848741616] [2023-02-16 00:28:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:02,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:02,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:02,896 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) [2023-02-16 00:28:02,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 00:28:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:28:02,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 00:28:02,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:03,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 00:28:03,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:03,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355094517] [2023-02-16 00:28:03,003 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:03,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848741616] [2023-02-16 00:28:03,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848741616] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:28:03,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:28:03,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-16 00:28:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806047997] [2023-02-16 00:28:03,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:28:03,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 00:28:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 00:28:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-16 00:28:03,004 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:03,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:03,081 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2023-02-16 00:28:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 00:28:03,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-16 00:28:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:03,082 INFO L225 Difference]: With dead ends: 48 [2023-02-16 00:28:03,082 INFO L226 Difference]: Without dead ends: 32 [2023-02-16 00:28:03,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-02-16 00:28:03,083 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:03,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 34 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:28:03,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-16 00:28:03,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2023-02-16 00:28:03,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:03,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-16 00:28:03,085 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2023-02-16 00:28:03,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:03,085 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-16 00:28:03,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:03,086 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-16 00:28:03,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-16 00:28:03,086 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:03,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:03,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-16 00:28:03,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:03,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:03,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:03,291 INFO L85 PathProgramCache]: Analyzing trace with hash 615941150, now seen corresponding path program 1 times [2023-02-16 00:28:03,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:03,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646223495] [2023-02-16 00:28:03,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:03,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:03,312 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:03,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513052207] [2023-02-16 00:28:03,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:03,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:03,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:03,326 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) [2023-02-16 00:28:03,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 00:28:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:28:03,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-16 00:28:03,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:03,499 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2023-02-16 00:28:03,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2023-02-16 00:28:03,507 INFO L350 Elim1Store]: Elim1 eliminated variable 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 8 treesize of output 7 [2023-02-16 00:28:03,514 INFO L350 Elim1Store]: Elim1 eliminated variable 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 8 treesize of output 7 [2023-02-16 00:28:03,521 INFO L350 Elim1Store]: Elim1 eliminated variable 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 8 treesize of output 7 [2023-02-16 00:28:04,043 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:04,065 INFO L321 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2023-02-16 00:28:04,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 250 treesize of output 285 [2023-02-16 00:28:04,099 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:04,106 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:04,112 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:04,119 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:04,126 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:04,129 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-02-16 00:28:04,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 108 treesize of output 11 [2023-02-16 00:28:04,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:04,134 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:04,140 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:04,141 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 43 [2023-02-16 00:28:04,146 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:04,150 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:04,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2023-02-16 00:28:04,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:04,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:04,354 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2023-02-16 00:28:04,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 170 treesize of output 177 [2023-02-16 00:28:04,359 INFO L350 Elim1Store]: Elim1 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 144 treesize of output 142 [2023-02-16 00:28:04,364 INFO L350 Elim1Store]: Elim1 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 142 treesize of output 140 [2023-02-16 00:28:04,368 INFO L350 Elim1Store]: Elim1 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 140 treesize of output 138 [2023-02-16 00:28:04,371 INFO L350 Elim1Store]: Elim1 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 138 treesize of output 136 [2023-02-16 00:28:04,425 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2023-02-16 00:28:04,446 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 21 treesize of output 20 [2023-02-16 00:28:04,464 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 20 [2023-02-16 00:28:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:04,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:28:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:08,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:08,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646223495] [2023-02-16 00:28:08,681 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:08,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513052207] [2023-02-16 00:28:08,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513052207] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:28:08,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:28:08,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-02-16 00:28:08,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702752789] [2023-02-16 00:28:08,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:28:08,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-16 00:28:08,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:08,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-16 00:28:08,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=108, Unknown=12, NotChecked=0, Total=156 [2023-02-16 00:28:08,685 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 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) [2023-02-16 00:28:12,886 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|))) (and (not (= |c_ULTIMATE.start_main_~c~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (forall ((v_ArrVal_315 (Array Int Int)) (v_ArrVal_314 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_314) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_315) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) (forall ((v_ArrVal_316 Int)) (= (select (store .cse0 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_316) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) (= (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|) 0))) is different from false [2023-02-16 00:28:13,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:13,116 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2023-02-16 00:28:13,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-16 00:28:13,117 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 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) Word has length 20 [2023-02-16 00:28:13,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:13,117 INFO L225 Difference]: With dead ends: 68 [2023-02-16 00:28:13,117 INFO L226 Difference]: Without dead ends: 66 [2023-02-16 00:28:13,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=133, Invalid=356, Unknown=21, NotChecked=42, Total=552 [2023-02-16 00:28:13,118 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 96 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:13,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 95 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 111 Invalid, 2 Unknown, 2 Unchecked, 0.1s Time] [2023-02-16 00:28:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-16 00:28:13,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 40. [2023-02-16 00:28:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:13,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2023-02-16 00:28:13,123 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 20 [2023-02-16 00:28:13,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:13,123 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2023-02-16 00:28:13,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 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) [2023-02-16 00:28:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-02-16 00:28:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 00:28:13,124 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:13,124 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:13,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-16 00:28:13,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:13,325 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:13,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:13,325 INFO L85 PathProgramCache]: Analyzing trace with hash 678263444, now seen corresponding path program 1 times [2023-02-16 00:28:13,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:13,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970294662] [2023-02-16 00:28:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:13,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:13,356 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:13,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728685024] [2023-02-16 00:28:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:13,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:13,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:13,366 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) [2023-02-16 00:28:13,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 00:28:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:28:13,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 56 conjunts are in the unsatisfiable core [2023-02-16 00:28:13,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:13,857 INFO L321 Elim1Store]: treesize reduction 252, result has 37.8 percent of original size [2023-02-16 00:28:13,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 462 treesize of output 894 [2023-02-16 00:28:13,892 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:13,926 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:13,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 37 treesize of output 33 [2023-02-16 00:28:14,397 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:14,487 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:15,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:15,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:15,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:15,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:15,408 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:15,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:15,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:15,425 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:15,428 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:15,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:15,492 INFO L321 Elim1Store]: treesize reduction 108, result has 13.6 percent of original size [2023-02-16 00:28:15,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 410 treesize of output 664 [2023-02-16 00:28:15,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 685 treesize of output 684 [2023-02-16 00:28:16,128 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,128 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-16 00:28:16,420 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:16,509 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:16,514 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:16,516 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:16,517 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,519 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 121 treesize of output 205 [2023-02-16 00:28:16,681 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,682 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,682 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:16,683 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,684 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:16,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 361 [2023-02-16 00:28:16,771 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,778 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,781 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,792 INFO L321 Elim1Store]: treesize reduction 37, result has 17.8 percent of original size [2023-02-16 00:28:16,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 336 treesize of output 422 [2023-02-16 00:28:16,884 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,886 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,895 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2023-02-16 00:28:16,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 348 treesize of output 343 [2023-02-16 00:28:16,961 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,963 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 10 [2023-02-16 00:28:16,984 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,985 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 10 [2023-02-16 00:28:16,992 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:16,994 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 10 [2023-02-16 00:28:17,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:17,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:17,042 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:17,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:17,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 98 [2023-02-16 00:28:17,132 INFO L321 Elim1Store]: treesize reduction 40, result has 28.6 percent of original size [2023-02-16 00:28:17,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 499 treesize of output 607 [2023-02-16 00:28:17,232 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:17,584 INFO L321 Elim1Store]: treesize reduction 89, result has 30.5 percent of original size [2023-02-16 00:28:17,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 1979 treesize of output 2000 [2023-02-16 00:28:17,883 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:18,290 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:18,339 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:18,390 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:18,465 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:18,734 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:18,750 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:18,776 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:18,791 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:18,980 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 00:28:18,980 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 19 [2023-02-16 00:28:19,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:19,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:19,047 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 00:28:19,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 73 treesize of output 68 [2023-02-16 00:28:19,066 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 18 [2023-02-16 00:28:19,068 INFO L350 Elim1Store]: Elim1 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 24 treesize of output 20 [2023-02-16 00:28:19,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:19,109 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 00:28:19,109 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2023-02-16 00:28:19,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:19,131 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2023-02-16 00:28:19,131 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 39 [2023-02-16 00:28:19,234 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:28:19,234 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 30 [2023-02-16 00:28:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:19,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:28:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:19,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:19,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970294662] [2023-02-16 00:28:19,776 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:19,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728685024] [2023-02-16 00:28:19,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728685024] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:28:19,776 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:28:19,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2023-02-16 00:28:19,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19136096] [2023-02-16 00:28:19,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:28:19,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-16 00:28:19,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:19,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-16 00:28:19,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=303, Unknown=8, NotChecked=0, Total=380 [2023-02-16 00:28:19,779 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:21,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:28:24,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:24,819 INFO L93 Difference]: Finished difference Result 98 states and 112 transitions. [2023-02-16 00:28:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-02-16 00:28:24,819 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 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 24 [2023-02-16 00:28:24,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:24,821 INFO L225 Difference]: With dead ends: 98 [2023-02-16 00:28:24,821 INFO L226 Difference]: Without dead ends: 96 [2023-02-16 00:28:24,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=338, Invalid=1374, Unknown=10, NotChecked=0, Total=1722 [2023-02-16 00:28:24,823 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 143 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:24,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 155 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 243 Invalid, 2 Unknown, 0 Unchecked, 2.9s Time] [2023-02-16 00:28:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-02-16 00:28:24,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 62. [2023-02-16 00:28:24,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 61 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:24,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2023-02-16 00:28:24,840 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 24 [2023-02-16 00:28:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:24,841 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2023-02-16 00:28:24,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:24,841 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2023-02-16 00:28:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 00:28:24,842 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:24,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:24,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-16 00:28:25,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:25,050 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:25,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:25,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1455292262, now seen corresponding path program 2 times [2023-02-16 00:28:25,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:25,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339657678] [2023-02-16 00:28:25,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:25,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:25,070 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:25,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106113932] [2023-02-16 00:28:25,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 00:28:25,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:25,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:25,072 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) [2023-02-16 00:28:25,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 00:28:25,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 00:28:25,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:28:25,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 00:28:25,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 00:28:25,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:28:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 00:28:25,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:25,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339657678] [2023-02-16 00:28:25,304 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:25,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106113932] [2023-02-16 00:28:25,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106113932] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:28:25,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:28:25,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-02-16 00:28:25,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095784669] [2023-02-16 00:28:25,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:28:25,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-16 00:28:25,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:25,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-16 00:28:25,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-02-16 00:28:25,306 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 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) [2023-02-16 00:28:25,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:25,560 INFO L93 Difference]: Finished difference Result 171 states and 199 transitions. [2023-02-16 00:28:25,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-16 00:28:25,560 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 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 24 [2023-02-16 00:28:25,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:25,561 INFO L225 Difference]: With dead ends: 171 [2023-02-16 00:28:25,561 INFO L226 Difference]: Without dead ends: 115 [2023-02-16 00:28:25,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2023-02-16 00:28:25,562 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 119 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:25,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 93 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 00:28:25,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-02-16 00:28:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2023-02-16 00:28:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.1690140845070423) internal successors, (83), 71 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2023-02-16 00:28:25,568 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2023-02-16 00:28:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:25,568 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2023-02-16 00:28:25,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 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) [2023-02-16 00:28:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2023-02-16 00:28:25,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 00:28:25,569 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:25,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:25,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-16 00:28:25,774 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,SelfDestructingSolverStorable7 [2023-02-16 00:28:25,774 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:25,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:25,775 INFO L85 PathProgramCache]: Analyzing trace with hash 900948378, now seen corresponding path program 3 times [2023-02-16 00:28:25,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:25,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150411730] [2023-02-16 00:28:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:25,791 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:25,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780354743] [2023-02-16 00:28:25,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 00:28:25,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:25,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:25,825 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) [2023-02-16 00:28:25,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 00:28:25,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-16 00:28:25,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:28:25,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 00:28:25,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 00:28:25,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:28:26,025 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 00:28:26,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:26,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150411730] [2023-02-16 00:28:26,026 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:26,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780354743] [2023-02-16 00:28:26,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780354743] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:28:26,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:28:26,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-02-16 00:28:26,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612954630] [2023-02-16 00:28:26,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:28:26,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-16 00:28:26,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:26,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-16 00:28:26,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-02-16 00:28:26,027 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:26,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:26,132 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2023-02-16 00:28:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-16 00:28:26,132 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-02-16 00:28:26,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:26,132 INFO L225 Difference]: With dead ends: 87 [2023-02-16 00:28:26,132 INFO L226 Difference]: Without dead ends: 67 [2023-02-16 00:28:26,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-02-16 00:28:26,133 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 63 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:26,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 37 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:28:26,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-02-16 00:28:26,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 54. [2023-02-16 00:28:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:26,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2023-02-16 00:28:26,137 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 24 [2023-02-16 00:28:26,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:26,138 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2023-02-16 00:28:26,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:26,138 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2023-02-16 00:28:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 00:28:26,138 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:26,138 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:26,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-16 00:28:26,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:26,344 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:26,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:26,344 INFO L85 PathProgramCache]: Analyzing trace with hash -227434410, now seen corresponding path program 4 times [2023-02-16 00:28:26,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:26,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865446178] [2023-02-16 00:28:26,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:26,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:26,379 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:26,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081999785] [2023-02-16 00:28:26,379 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 00:28:26,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:26,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:26,393 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) [2023-02-16 00:28:26,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 00:28:26,463 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 00:28:26,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:28:26,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 00:28:26,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:28:26,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:28:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:28:26,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:26,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865446178] [2023-02-16 00:28:26,600 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:26,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081999785] [2023-02-16 00:28:26,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081999785] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:28:26,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:28:26,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-02-16 00:28:26,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959811857] [2023-02-16 00:28:26,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:28:26,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 00:28:26,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:26,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 00:28:26,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-02-16 00:28:26,606 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:26,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:26,831 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2023-02-16 00:28:26,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-16 00:28:26,831 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 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 28 [2023-02-16 00:28:26,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:26,832 INFO L225 Difference]: With dead ends: 89 [2023-02-16 00:28:26,832 INFO L226 Difference]: Without dead ends: 76 [2023-02-16 00:28:26,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-02-16 00:28:26,833 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 93 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:26,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 65 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 00:28:26,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-02-16 00:28:26,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 50. [2023-02-16 00:28:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:26,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2023-02-16 00:28:26,847 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2023-02-16 00:28:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:26,847 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2023-02-16 00:28:26,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2023-02-16 00:28:26,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-16 00:28:26,848 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:26,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:26,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-16 00:28:27,055 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,SelfDestructingSolverStorable9 [2023-02-16 00:28:27,056 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:27,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:27,056 INFO L85 PathProgramCache]: Analyzing trace with hash 341343694, now seen corresponding path program 2 times [2023-02-16 00:28:27,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:27,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642475023] [2023-02-16 00:28:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:27,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:27,078 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:27,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339675056] [2023-02-16 00:28:27,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 00:28:27,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:27,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:27,080 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) [2023-02-16 00:28:27,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-16 00:28:27,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 00:28:27,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:28:27,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 65 conjunts are in the unsatisfiable core [2023-02-16 00:28:27,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:27,721 INFO L321 Elim1Store]: treesize reduction 252, result has 37.8 percent of original size [2023-02-16 00:28:27,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 462 treesize of output 894 [2023-02-16 00:28:27,757 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:27,821 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:27,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 37 treesize of output 33 [2023-02-16 00:28:28,153 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:28,310 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:31,010 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:31,019 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:31,021 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:31,064 INFO L321 Elim1Store]: treesize reduction 67, result has 25.6 percent of original size [2023-02-16 00:28:31,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 1525 treesize of output 2025 [2023-02-16 00:28:32,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:32,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:32,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:32,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 227 [2023-02-16 00:28:32,973 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:32,974 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:28:32,984 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:32,987 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:33,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:33,083 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:33,101 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:33,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:33,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:33,105 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:33,105 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:33,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 153 [2023-02-16 00:28:33,111 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:33,115 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:33,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 6440 treesize of output 6433 [2023-02-16 00:28:34,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:34,179 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:34,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 13 [2023-02-16 00:28:34,183 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:34,437 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:34,534 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:34,635 INFO L321 Elim1Store]: treesize reduction 58, result has 81.4 percent of original size [2023-02-16 00:28:34,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 5341 treesize of output 3729 [2023-02-16 00:28:34,914 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:35,665 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:35,741 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:36,129 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:37,759 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:37,802 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:37,809 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:37,812 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:37,864 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2023-02-16 00:28:37,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 2372 treesize of output 2911 [2023-02-16 00:28:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:38,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:38,703 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:38,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:38,712 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 91 [2023-02-16 00:28:38,735 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:38,760 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:38,767 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-02-16 00:28:38,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 483 treesize of output 282 [2023-02-16 00:28:38,928 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:38,928 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:38,936 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:38,936 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:38,939 INFO L350 Elim1Store]: Elim1 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 478 treesize of output 7 [2023-02-16 00:28:39,539 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:39,631 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 9370 treesize of output 9349 [2023-02-16 00:28:40,494 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 7 [2023-02-16 00:28:40,709 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 7 [2023-02-16 00:28:40,726 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 00:28:40,741 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 19 [2023-02-16 00:28:40,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:40,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:40,903 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 00:28:40,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 46 treesize of output 45 [2023-02-16 00:28:40,912 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:28:40,952 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 00:28:40,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2023-02-16 00:28:41,014 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-02-16 00:28:41,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 64 treesize of output 60 [2023-02-16 00:28:41,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2023-02-16 00:28:41,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 73 treesize of output 24 [2023-02-16 00:28:41,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,089 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 00:28:41,090 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2023-02-16 00:28:41,121 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-02-16 00:28:41,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 139 treesize of output 127 [2023-02-16 00:28:41,125 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:28:41,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 194 [2023-02-16 00:28:41,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:41,223 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2023-02-16 00:28:41,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 49 [2023-02-16 00:28:41,347 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:28:41,347 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 30 [2023-02-16 00:28:41,359 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:28:41,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:28:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 00:28:44,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:28:44,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642475023] [2023-02-16 00:28:44,939 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:28:44,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339675056] [2023-02-16 00:28:44,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339675056] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:28:44,939 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:28:44,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 28 [2023-02-16 00:28:44,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170713173] [2023-02-16 00:28:44,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:28:44,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-16 00:28:44,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:28:44,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-16 00:28:44,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=623, Unknown=7, NotChecked=0, Total=756 [2023-02-16 00:28:44,942 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 28 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 28 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:51,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-02-16 00:28:53,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:28:58,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:28:58,871 INFO L93 Difference]: Finished difference Result 133 states and 145 transitions. [2023-02-16 00:28:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-02-16 00:28:58,872 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 28 states have internal predecessors, (55), 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 [2023-02-16 00:28:58,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:28:58,872 INFO L225 Difference]: With dead ends: 133 [2023-02-16 00:28:58,872 INFO L226 Difference]: Without dead ends: 131 [2023-02-16 00:28:58,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=585, Invalid=2825, Unknown=12, NotChecked=0, Total=3422 [2023-02-16 00:28:58,881 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 256 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 80 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-02-16 00:28:58,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 175 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 378 Invalid, 11 Unknown, 0 Unchecked, 5.9s Time] [2023-02-16 00:28:58,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-02-16 00:28:58,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 73. [2023-02-16 00:28:58,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 72 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2023-02-16 00:28:58,894 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 30 [2023-02-16 00:28:58,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:28:58,894 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2023-02-16 00:28:58,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 28 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:28:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2023-02-16 00:28:58,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-16 00:28:58,894 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:28:58,895 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:28:58,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-16 00:28:59,095 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,SelfDestructingSolverStorable10 [2023-02-16 00:28:59,095 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:28:59,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:28:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash 505093188, now seen corresponding path program 3 times [2023-02-16 00:28:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:28:59,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376647369] [2023-02-16 00:28:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:28:59,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:28:59,133 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:28:59,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147432508] [2023-02-16 00:28:59,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 00:28:59,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:28:59,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:28:59,137 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) [2023-02-16 00:28:59,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-16 00:28:59,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-16 00:28:59,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:28:59,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 80 conjunts are in the unsatisfiable core [2023-02-16 00:28:59,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:28:59,510 INFO L321 Elim1Store]: treesize reduction 34, result has 50.7 percent of original size [2023-02-16 00:28:59,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 266 treesize of output 233 [2023-02-16 00:28:59,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:28:59,727 INFO L321 Elim1Store]: treesize reduction 312, result has 25.9 percent of original size [2023-02-16 00:28:59,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 217 treesize of output 616 [2023-02-16 00:28:59,752 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:59,765 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:59,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 37 treesize of output 33 [2023-02-16 00:28:59,886 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:59,910 INFO L350 Elim1Store]: Elim1 eliminated variable 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 17 treesize of output 15 [2023-02-16 00:28:59,933 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:00,271 INFO L350 Elim1Store]: Elim1 eliminated variable 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 8 treesize of output 7 [2023-02-16 00:29:00,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 51 [2023-02-16 00:29:00,372 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:00,391 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:00,392 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 25 treesize of output 3 [2023-02-16 00:29:01,278 INFO L321 Elim1Store]: treesize reduction 145, result has 23.3 percent of original size [2023-02-16 00:29:01,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 578 treesize of output 637 [2023-02-16 00:29:01,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,695 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:01,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 101 treesize of output 94 [2023-02-16 00:29:01,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,757 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:01,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 101 treesize of output 94 [2023-02-16 00:29:01,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:01,810 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:01,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 94 [2023-02-16 00:29:01,920 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:01,953 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:01,974 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:02,011 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:02,209 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:02,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1165 treesize of output 1107 [2023-02-16 00:29:03,114 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,115 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-16 00:29:03,161 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,161 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-16 00:29:03,182 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,183 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-16 00:29:03,260 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,261 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-16 00:29:03,297 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,297 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-16 00:29:03,314 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-02-16 00:29:03,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 59 treesize of output 30 [2023-02-16 00:29:03,322 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:03,336 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,338 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,343 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 41 treesize of output 14 [2023-02-16 00:29:03,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:03,521 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 26 [2023-02-16 00:29:03,544 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:03,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:03,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:03,551 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 55 [2023-02-16 00:29:03,556 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:03,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:03,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:03,610 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2023-02-16 00:29:03,618 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,618 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-16 00:29:03,621 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:03,633 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2023-02-16 00:29:03,638 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:03,645 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:03,649 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,651 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:03,676 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:03,678 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:03,753 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:03,760 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:03,793 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:03,803 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:03,907 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 00:29:03,907 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 19 [2023-02-16 00:29:04,059 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2023-02-16 00:29:04,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 104 treesize of output 101 [2023-02-16 00:29:04,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2023-02-16 00:29:04,087 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:04,100 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2023-02-16 00:29:04,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,151 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-02-16 00:29:04,152 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2023-02-16 00:29:04,218 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2023-02-16 00:29:04,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 146 treesize of output 137 [2023-02-16 00:29:04,222 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:04,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 194 [2023-02-16 00:29:04,340 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2023-02-16 00:29:04,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 90 treesize of output 83 [2023-02-16 00:29:04,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 123 [2023-02-16 00:29:04,370 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:04,563 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2023-02-16 00:29:04,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 168 treesize of output 153 [2023-02-16 00:29:04,568 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:04,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 197 [2023-02-16 00:29:04,577 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:29:04,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:29:04,729 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:29:04,732 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-02-16 00:29:04,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 66 [2023-02-16 00:29:05,077 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2023-02-16 00:29:05,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 59 [2023-02-16 00:29:05,095 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:29:05,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:29:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:29:30,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:29:30,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376647369] [2023-02-16 00:29:30,589 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:29:30,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147432508] [2023-02-16 00:29:30,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147432508] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:29:30,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:29:30,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2023-02-16 00:29:30,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774143651] [2023-02-16 00:29:30,590 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:29:30,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-02-16 00:29:30,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:29:30,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-02-16 00:29:30,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1202, Unknown=6, NotChecked=0, Total=1406 [2023-02-16 00:29:30,591 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 38 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 38 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) [2023-02-16 00:29:32,708 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse116 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse133 (mod .cse116 4294967296)) (.cse134 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse44 (<= .cse134 2147483647)) (.cse131 (* .cse134 8)) (.cse13 (<= .cse133 2147483647)) (.cse132 (* .cse133 8))) (let ((.cse21 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse132)) (.cse12 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse132 (- 34359738368))) (.cse60 (< (+ |c_ULTIMATE.start_main_~i~0#1| 2) c_~N~0)) (.cse66 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse132)) (.cse72 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse132 (- 34359738368))) (.cse22 (not .cse13)) (.cse91 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse131 (- 34359738368))) (.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse84 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse131)) (.cse28 (not .cse44)) (.cse36 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse131)) (.cse5 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8)) (.cse6 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse10 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse11 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse52 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse131 (- 34359738368))) (.cse0 (not (< 2 c_~N~0))) (.cse23 (< 3 c_~N~0))) (and (or .cse0 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse9 (store .cse11 .cse12 v_ArrVal_778))) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse9))) (let ((.cse8 (select .cse7 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse2 (select .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse3 (store .cse7 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse8 .cse6 (+ (select .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse2)) .cse10 v_ArrVal_783)))) (let ((.cse4 (select .cse3 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse1 (select .cse4 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse1 .cse2 (select (select (store .cse3 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse4 .cse5 (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6))))))))) 8)) .cse13) (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse20 (store .cse11 .cse21 v_ArrVal_778))) (let ((.cse18 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20))) (let ((.cse19 (select .cse18 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse14 (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse15 (store .cse18 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse19 .cse6 (+ .cse14 (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse10 v_ArrVal_783)))) (let ((.cse16 (select .cse15 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse17 (select .cse16 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse14 (select (select (store .cse15 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse16 .cse5 (+ .cse14 .cse17))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse17)))))))) 8)) .cse22)) .cse23) (or .cse0 (= (let ((.cse25 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse24 (select .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse26 (select .cse25 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse24 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| (store .cse25 .cse5 (+ .cse24 .cse26))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse26))) 8)) (or .cse0 (and (or .cse28 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse35 (store (store .cse11 .cse36 v_ArrVal_776) .cse21 v_ArrVal_778))) (let ((.cse33 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse35))) (let ((.cse34 (select .cse33 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse32 (select .cse34 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse30 (store .cse33 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse34 .cse6 (+ (select .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse32)) .cse10 v_ArrVal_783)))) (let ((.cse31 (select .cse30 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse29 (select .cse31 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse29 (select (select (store .cse30 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse31 .cse5 (+ .cse29 .cse32))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse32)))))))) 8)) .cse22) (or .cse13 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse43 (store (store .cse11 .cse36 v_ArrVal_776) .cse12 v_ArrVal_778))) (let ((.cse41 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse43))) (let ((.cse42 (select .cse41 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse40 (select .cse42 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse38 (store .cse41 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse42 .cse6 (+ (select .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse40)) .cse10 v_ArrVal_783)))) (let ((.cse39 (select .cse38 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse37 (select .cse39 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse37 (select (select (store .cse38 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse39 .cse5 (+ .cse37 .cse40))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse40)))))))) 8))))) (or .cse44 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse51 (store (store .cse11 .cse52 v_ArrVal_776) .cse21 v_ArrVal_778))) (let ((.cse49 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51))) (let ((.cse50 (select .cse49 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse48 (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse46 (store .cse49 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse50 .cse6 (+ .cse48 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse10 v_ArrVal_783)))) (let ((.cse47 (select .cse46 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse45 (select .cse47 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse45 (select (select (store .cse46 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse47 .cse5 (+ .cse45 .cse48))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse48)))))))) 8)) .cse22) (or .cse13 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse59 (store (store .cse11 .cse52 v_ArrVal_776) .cse12 v_ArrVal_778))) (let ((.cse57 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse59))) (let ((.cse58 (select .cse57 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse54 (select .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse55 (store .cse57 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse58 .cse6 (+ .cse54 (select .cse59 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse10 v_ArrVal_783)))) (let ((.cse56 (select .cse55 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse53 (select .cse56 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse53 .cse54 (select (select (store .cse55 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse56 .cse5 (+ .cse53 .cse54))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6))))))))) 8)))))) .cse23) (or .cse0 .cse60 (and (or (forall ((v_ArrVal_783 Int)) (= (let ((.cse65 (store .cse27 .cse66 v_ArrVal_783))) (let ((.cse62 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse65))) (let ((.cse63 (select .cse62 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse61 (select .cse65 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse64 (select .cse63 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse61 (select (select (store .cse62 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse63 .cse5 (+ .cse61 .cse64))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse64))))) 8)) .cse22) (or (forall ((v_ArrVal_783 Int)) (= (let ((.cse71 (store .cse27 .cse72 v_ArrVal_783))) (let ((.cse69 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse71))) (let ((.cse70 (select .cse69 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse67 (select .cse71 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse68 (select .cse70 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse67 .cse68 (select (select (store .cse69 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse70 .cse5 (+ .cse67 .cse68))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 8)) .cse13))) (<= (mod c_~N~0 4294967296) 536870911) (or .cse0 .cse60 (let ((.cse105 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 4294967295) 4294967296))) (let ((.cse93 (<= .cse105 2147483647)) (.cse92 (* .cse105 8))) (and (or (let ((.cse85 (+ (select .cse11 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse92)) (select .cse27 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse92))))) (and (or .cse28 (let ((.cse78 (store .cse27 .cse84 .cse85))) (and (or (forall ((v_ArrVal_783 Int)) (= (let ((.cse77 (store .cse78 .cse72 v_ArrVal_783))) (let ((.cse75 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse77))) (let ((.cse76 (select .cse75 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse73 (select .cse77 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse74 (select .cse76 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse73 .cse74 (select (select (store .cse75 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse76 .cse5 (+ .cse73 .cse74))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 8)) .cse13) (or (forall ((v_ArrVal_783 Int)) (= (let ((.cse83 (store .cse78 .cse66 v_ArrVal_783))) (let ((.cse81 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse83))) (let ((.cse82 (select .cse81 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse79 (select .cse83 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse80 (select .cse82 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse79 .cse80 (select (select (store .cse81 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse82 .cse5 (+ .cse79 .cse80))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 8)) .cse22)))) (or .cse44 (forall ((v_ArrVal_783 Int)) (= (let ((.cse90 (store (store .cse27 .cse91 .cse85) .cse72 v_ArrVal_783))) (let ((.cse87 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse90))) (let ((.cse88 (select .cse87 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse86 (select .cse90 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse89 (select .cse88 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse86 (select (select (store .cse87 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse88 .cse5 (+ .cse86 .cse89))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse89))))) 8))))) (not .cse93)) (or .cse93 (let ((.cse99 (+ (select .cse27 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse92 (- 34359738368))) (select .cse11 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse92 (- 34359738368)))))) (and (or .cse28 (forall ((v_ArrVal_783 Int)) (= (let ((.cse98 (store (store .cse27 .cse84 .cse99) .cse66 v_ArrVal_783))) (let ((.cse95 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse98))) (let ((.cse96 (select .cse95 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse94 (select .cse98 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse97 (select .cse96 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse94 (select (select (store .cse95 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse96 .cse5 (+ .cse94 .cse97))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse97))))) 8))) (or (and (forall ((v_ArrVal_783 Int)) (= (let ((.cse104 (store (store .cse27 .cse91 .cse99) .cse72 v_ArrVal_783))) (let ((.cse102 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse104))) (let ((.cse103 (select .cse102 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse100 (select .cse104 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse101 (select .cse103 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse100 .cse101 (select (select (store .cse102 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse103 .cse5 (+ .cse100 .cse101))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 8)) .cse22) .cse44)))))))) (or (and (or (forall ((v_ArrVal_783 Int)) (= (let ((.cse110 (store .cse27 .cse91 v_ArrVal_783))) (let ((.cse107 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse110))) (let ((.cse108 (select .cse107 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse106 (select .cse108 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse109 (select .cse110 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse106 (select (select (store .cse107 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse108 .cse5 (+ .cse106 .cse109))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse109))))) 8)) .cse44) (or (forall ((v_ArrVal_783 Int)) (= (let ((.cse115 (store .cse27 .cse84 v_ArrVal_783))) (let ((.cse113 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse115))) (let ((.cse114 (select .cse113 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse111 (select .cse115 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse112 (select .cse114 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse111 .cse112 (select (select (store .cse113 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse114 .cse5 (+ .cse111 .cse112))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 8)) .cse28)) (< .cse116 c_~N~0) .cse0) (or (and (or .cse28 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse123 (store .cse11 .cse36 v_ArrVal_778))) (let ((.cse121 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse123))) (let ((.cse122 (select .cse121 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse118 (select .cse122 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse119 (store .cse121 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse122 .cse6 (+ .cse118 (select .cse123 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse10 v_ArrVal_783)))) (let ((.cse120 (select .cse119 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse117 (select .cse120 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse117 .cse118 (select (select (store .cse119 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse120 .cse5 (+ .cse117 .cse118))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6))))))))) 8))) (or .cse44 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse130 (store .cse11 .cse52 v_ArrVal_778))) (let ((.cse128 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse130))) (let ((.cse129 (select .cse128 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse124 (select .cse129 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse125 (store .cse128 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse129 .cse6 (+ .cse124 (select .cse130 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse10 v_ArrVal_783)))) (let ((.cse126 (select .cse125 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse127 (select .cse126 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse124 (select (select (store .cse125 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse126 .cse5 (+ .cse124 .cse127))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse127)))))))) 8)))) .cse0 .cse23)))))) is different from true [2023-02-16 00:29:39,381 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse83 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse85 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse65 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse84 (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 4294967295) 4294967296) 8)) (.cse82 (* .cse85 8)) (.cse86 (mod .cse83 4294967296))) (let ((.cse17 (<= .cse86 2147483647)) (.cse81 (* .cse86 8)) (.cse26 (<= .cse85 2147483647)) (.cse66 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse82)) (.cse48 (select .cse65 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse84))) (.cse49 (select .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse84)))) (let ((.cse43 (store .cse65 .cse66 (+ .cse48 .cse49))) (.cse2 (not .cse26)) (.cse14 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse82)) (.cse34 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse82 (- 34359738368))) (.cse46 (not (< .cse83 c_~N~0))) (.cse47 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse81)) (.cse50 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse82)) (.cse44 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) (.cse1 (not (< 2 c_~N~0))) (.cse25 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse81 (- 34359738368))) (.cse6 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8)) (.cse8 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse12 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse81)) (.cse16 (not .cse17)) (.cse42 (< 3 c_~N~0)) (.cse45 (<= (mod c_~N~0 4294967296) 536870911))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|) 1) (or .cse1 (and (or .cse2 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse11 (store (store .cse13 .cse14 v_ArrVal_776) .cse15 v_ArrVal_778))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse11))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse7 (select .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse4 (store .cse9 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse10 .cse8 (+ (select .cse11 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse7)) .cse12 v_ArrVal_783)))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse5 .cse6 (+ .cse3 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse7)))))))) 8)) .cse16) (or .cse17 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse24 (store (store .cse13 .cse14 v_ArrVal_776) .cse25 v_ArrVal_778))) (let ((.cse22 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse24))) (let ((.cse23 (select .cse22 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse21 (select .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse19 (store .cse22 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse23 .cse8 (+ (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse21)) .cse12 v_ArrVal_783)))) (let ((.cse20 (select .cse19 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse18 (select .cse20 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse20 .cse6 (+ .cse18 .cse21))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse21)))))))) 8))))) (or .cse26 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse33 (store (store .cse13 .cse34 v_ArrVal_776) .cse15 v_ArrVal_778))) (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse33))) (let ((.cse32 (select .cse31 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse30 (select .cse32 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse28 (store .cse31 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse32 .cse8 (+ .cse30 (select .cse33 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse29 (select .cse28 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse27 (select .cse29 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse27 (select (select (store .cse28 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse29 .cse6 (+ .cse27 .cse30))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse30)))))))) 8)) .cse16) (or .cse17 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse41 (store (store .cse13 .cse34 v_ArrVal_776) .cse25 v_ArrVal_778))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse41))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse36 (select .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse37 (store .cse39 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse40 .cse8 (+ .cse36 (select .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse38 (select .cse37 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse35 (select .cse38 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse35 .cse36 (select (select (store .cse37 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse38 .cse6 (+ .cse35 .cse36))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))))))))) 8)))))) .cse42) (or (= (select .cse43 .cse44) 8) (not (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0))) .cse45 (or .cse46 (= (select (store .cse43 .cse47 (+ .cse48 .cse49 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse43) |c_ULTIMATE.start_main_~b~0#1.base|) .cse50))) .cse44) 8)) (or (and (or .cse2 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse57 (store .cse13 .cse14 v_ArrVal_778))) (let ((.cse55 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse57))) (let ((.cse56 (select .cse55 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse52 (select .cse56 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse53 (store .cse55 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse56 .cse8 (+ .cse52 (select .cse57 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse54 (select .cse53 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse51 (select .cse54 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse51 .cse52 (select (select (store .cse53 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse54 .cse6 (+ .cse51 .cse52))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))))))))) 8))) (or .cse26 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse64 (store .cse13 .cse34 v_ArrVal_778))) (let ((.cse62 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse64))) (let ((.cse63 (select .cse62 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse58 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse59 (store .cse62 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse63 .cse8 (+ .cse58 (select .cse64 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse60 (select .cse59 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse61 (select .cse60 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse58 (select (select (store .cse59 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse60 .cse6 (+ .cse58 .cse61))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse61)))))))) 8)))) .cse1 .cse42) (= (select .cse65 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|) 6) (or .cse46 (= (select (store .cse65 .cse47 (+ (select .cse0 .cse50) (select .cse65 .cse66))) .cse44) 8)) (or .cse1 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse73 (store .cse13 .cse25 v_ArrVal_778))) (let ((.cse71 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse73))) (let ((.cse72 (select .cse71 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse68 (select .cse72 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse69 (store .cse71 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse72 .cse8 (+ (select .cse73 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse68)) .cse12 v_ArrVal_783)))) (let ((.cse70 (select .cse69 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse67 (select .cse70 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse67 .cse68 (select (select (store .cse69 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse70 .cse6 (+ .cse67 .cse68))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))))))))) 8)) .cse17) (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse80 (store .cse13 .cse15 v_ArrVal_778))) (let ((.cse78 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse80))) (let ((.cse79 (select .cse78 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse74 (select .cse79 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse75 (store .cse78 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse79 .cse8 (+ .cse74 (select .cse80 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse76 (select .cse75 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse77 (select .cse76 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse74 (select (select (store .cse75 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse76 .cse6 (+ .cse74 .cse77))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse77)))))))) 8)) .cse16)) .cse42) (= 0 |c_ULTIMATE.start_main_~c~0#1.offset|) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (or (and (not .cse45) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse45))))))) is different from true [2023-02-16 00:30:26,594 WARN L233 SmtUtils]: Spent 44.31s on a formula simplification. DAG size of input: 237 DAG size of output: 147 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-16 00:30:28,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:30:30,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:30:38,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:30:50,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:30:58,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:31:13,030 WARN L233 SmtUtils]: Spent 11.90s on a formula simplification. DAG size of input: 200 DAG size of output: 194 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-16 00:31:15,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:31:21,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:31:23,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:31:38,469 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse84 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse86 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse66 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse85 (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 4294967295) 4294967296) 8)) (.cse83 (* .cse86 8)) (.cse87 (mod .cse84 4294967296))) (let ((.cse17 (<= .cse87 2147483647)) (.cse82 (* .cse87 8)) (.cse26 (<= .cse86 2147483647)) (.cse67 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse83)) (.cse49 (select .cse66 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse85))) (.cse50 (select .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse85)))) (let ((.cse43 (store .cse66 .cse67 (+ .cse49 .cse50))) (.cse2 (not .cse26)) (.cse14 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse83)) (.cse34 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse83 (- 34359738368))) (.cse47 (not (< .cse84 c_~N~0))) (.cse48 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse82)) (.cse51 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse83)) (.cse44 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) (.cse1 (not (< 2 c_~N~0))) (.cse25 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse82 (- 34359738368))) (.cse6 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8)) (.cse8 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse12 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse82)) (.cse16 (not .cse17)) (.cse42 (< 3 c_~N~0)) (.cse46 (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|) 1) (or .cse1 (and (or .cse2 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse11 (store (store .cse13 .cse14 v_ArrVal_776) .cse15 v_ArrVal_778))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse11))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse7 (select .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse4 (store .cse9 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse10 .cse8 (+ (select .cse11 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse7)) .cse12 v_ArrVal_783)))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse5 .cse6 (+ .cse3 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse7)))))))) 8)) .cse16) (or .cse17 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse24 (store (store .cse13 .cse14 v_ArrVal_776) .cse25 v_ArrVal_778))) (let ((.cse22 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse24))) (let ((.cse23 (select .cse22 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse21 (select .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse19 (store .cse22 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse23 .cse8 (+ (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse21)) .cse12 v_ArrVal_783)))) (let ((.cse20 (select .cse19 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse18 (select .cse20 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse20 .cse6 (+ .cse18 .cse21))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse21)))))))) 8))))) (or .cse26 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse33 (store (store .cse13 .cse34 v_ArrVal_776) .cse15 v_ArrVal_778))) (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse33))) (let ((.cse32 (select .cse31 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse30 (select .cse32 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse28 (store .cse31 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse32 .cse8 (+ .cse30 (select .cse33 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse29 (select .cse28 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse27 (select .cse29 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse27 (select (select (store .cse28 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse29 .cse6 (+ .cse27 .cse30))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse30)))))))) 8)) .cse16) (or .cse17 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int) (v_ArrVal_776 Int)) (= (let ((.cse41 (store (store .cse13 .cse34 v_ArrVal_776) .cse25 v_ArrVal_778))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse41))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse36 (select .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse37 (store .cse39 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse40 .cse8 (+ .cse36 (select .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse38 (select .cse37 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse35 (select .cse38 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse35 .cse36 (select (select (store .cse37 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse38 .cse6 (+ .cse35 .cse36))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))))))))) 8)))))) .cse42) (= |c_ULTIMATE.start_main_~i~0#1| 3) (or (= (select .cse43 .cse44) 8) (not (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0))) (not .cse42) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (let ((.cse45 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0))) (and (= .cse45 6) (= (select .cse0 .cse8) (+ .cse46 .cse45))))) (<= (mod c_~N~0 4294967296) 536870911) (or .cse47 (= (select (store .cse43 .cse48 (+ .cse49 .cse50 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse43) |c_ULTIMATE.start_main_~b~0#1.base|) .cse51))) .cse44) 8)) (or (and (or .cse2 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse58 (store .cse13 .cse14 v_ArrVal_778))) (let ((.cse56 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse58))) (let ((.cse57 (select .cse56 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse53 (select .cse57 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse54 (store .cse56 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse57 .cse8 (+ .cse53 (select .cse58 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse55 (select .cse54 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse52 (select .cse55 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse52 .cse53 (select (select (store .cse54 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse55 .cse6 (+ .cse52 .cse53))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))))))))) 8))) (or .cse26 (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse65 (store .cse13 .cse34 v_ArrVal_778))) (let ((.cse63 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse65))) (let ((.cse64 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse59 (select .cse64 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse60 (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse64 .cse8 (+ .cse59 (select .cse65 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse61 (select .cse60 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse62 (select .cse61 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse59 (select (select (store .cse60 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse61 .cse6 (+ .cse59 .cse62))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse62)))))))) 8)))) .cse1 .cse42) (= (select .cse66 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|) 6) (or .cse47 (= (select (store .cse66 .cse48 (+ (select .cse0 .cse51) (select .cse66 .cse67))) .cse44) 8)) (or .cse1 (and (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse74 (store .cse13 .cse25 v_ArrVal_778))) (let ((.cse72 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse74))) (let ((.cse73 (select .cse72 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse69 (select .cse73 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse70 (store .cse72 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse73 .cse8 (+ (select .cse74 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse69)) .cse12 v_ArrVal_783)))) (let ((.cse71 (select .cse70 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse68 (select .cse71 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse68 .cse69 (select (select (store .cse70 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse71 .cse6 (+ .cse68 .cse69))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))))))))) 8)) .cse17) (or (forall ((v_ArrVal_783 Int) (v_ArrVal_778 Int)) (= (let ((.cse81 (store .cse13 .cse15 v_ArrVal_778))) (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse81))) (let ((.cse80 (select .cse79 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse75 (select .cse80 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse76 (store .cse79 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse80 .cse8 (+ .cse75 (select .cse81 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse12 v_ArrVal_783)))) (let ((.cse77 (select .cse76 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse78 (select .cse77 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse75 (select (select (store .cse76 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse77 .cse6 (+ .cse75 .cse78))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8) .cse78)))))))) 8)) .cse16)) .cse42) (= 0 |c_ULTIMATE.start_main_~c~0#1.offset|) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= .cse46 1)))))) is different from true [2023-02-16 00:31:40,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-16 00:32:24,688 WARN L233 SmtUtils]: Spent 37.49s on a formula simplification. DAG size of input: 209 DAG size of output: 169 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)