./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/dll2c_append_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c 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/list-simple/dll2c_append_equal.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 23:15:56,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 23:15:56,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 23:15:56,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 23:15:56,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 23:15:56,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 23:15:56,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 23:15:56,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 23:15:56,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 23:15:56,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 23:15:56,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 23:15:56,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 23:15:56,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 23:15:56,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 23:15:56,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 23:15:56,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 23:15:56,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 23:15:56,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 23:15:56,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 23:15:56,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 23:15:56,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 23:15:56,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 23:15:56,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 23:15:56,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 23:15:56,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 23:15:56,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 23:15:56,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 23:15:56,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 23:15:56,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 23:15:56,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 23:15:56,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 23:15:56,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 23:15:56,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 23:15:56,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 23:15:56,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 23:15:56,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 23:15:56,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 23:15:56,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 23:15:56,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 23:15:56,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 23:15:56,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 23:15:56,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 23:15:56,255 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 23:15:56,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 23:15:56,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 23:15:56,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 23:15:56,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 23:15:56,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 23:15:56,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 23:15:56,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 23:15:56,258 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 23:15:56,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 23:15:56,258 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 23:15:56,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 23:15:56,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 23:15:56,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 23:15:56,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 23:15:56,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 23:15:56,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 23:15:56,260 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 23:15:56,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 23:15:56,260 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 23:15:56,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 23:15:56,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 23:15:56,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 23:15:56,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 23:15:56,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 23:15:56,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 23:15:56,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 23:15:56,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 23:15:56,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 23:15:56,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 23:15:56,263 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 23:15:56,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 23:15:56,263 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 23:15:56,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 23:15:56,264 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 23:15:56,264 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc [2023-02-17 23:15:56,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 23:15:56,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 23:15:56,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 23:15:56,509 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 23:15:56,509 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 23:15:56,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_append_equal.i [2023-02-17 23:15:57,717 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 23:15:57,962 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 23:15:57,962 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_append_equal.i [2023-02-17 23:15:57,982 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effc4db3e/55db24e1d68b423893338f35f9717748/FLAG1247323e3 [2023-02-17 23:15:57,994 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effc4db3e/55db24e1d68b423893338f35f9717748 [2023-02-17 23:15:57,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 23:15:57,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 23:15:57,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 23:15:57,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 23:15:58,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 23:15:58,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 11:15:57" (1/1) ... [2023-02-17 23:15:58,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e46532f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58, skipping insertion in model container [2023-02-17 23:15:58,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 11:15:57" (1/1) ... [2023-02-17 23:15:58,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 23:15:58,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 23:15:58,330 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/list-simple/dll2c_append_equal.i[24585,24598] [2023-02-17 23:15:58,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 23:15:58,345 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 23:15:58,409 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/list-simple/dll2c_append_equal.i[24585,24598] [2023-02-17 23:15:58,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 23:15:58,436 INFO L208 MainTranslator]: Completed translation [2023-02-17 23:15:58,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58 WrapperNode [2023-02-17 23:15:58,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 23:15:58,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 23:15:58,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 23:15:58,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 23:15:58,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,479 INFO L138 Inliner]: procedures = 127, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 134 [2023-02-17 23:15:58,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 23:15:58,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 23:15:58,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 23:15:58,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 23:15:58,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,511 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 23:15:58,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 23:15:58,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 23:15:58,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 23:15:58,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (1/1) ... [2023-02-17 23:15:58,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 23:15:58,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 23:15:58,564 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) [2023-02-17 23:15:58,588 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 [2023-02-17 23:15:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 23:15:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 23:15:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-02-17 23:15:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-02-17 23:15:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-17 23:15:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 23:15:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-17 23:15:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-17 23:15:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-17 23:15:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 23:15:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-17 23:15:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 23:15:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 23:15:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 23:15:58,743 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 23:15:58,745 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 23:15:58,991 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 23:15:58,997 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 23:15:58,997 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-17 23:15:58,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 11:15:58 BoogieIcfgContainer [2023-02-17 23:15:58,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 23:15:59,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 23:15:59,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 23:15:59,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 23:15:59,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 11:15:57" (1/3) ... [2023-02-17 23:15:59,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2496a2f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 11:15:59, skipping insertion in model container [2023-02-17 23:15:59,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:15:58" (2/3) ... [2023-02-17 23:15:59,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2496a2f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 11:15:59, skipping insertion in model container [2023-02-17 23:15:59,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 11:15:58" (3/3) ... [2023-02-17 23:15:59,007 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal.i [2023-02-17 23:15:59,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 23:15:59,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 23:15:59,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 23:15:59,079 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;@6852e2c2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 23:15:59,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 23:15:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-17 23:15:59,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 23:15:59,089 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:15:59,090 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:15:59,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 23:15:59,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:15:59,093 INFO L85 PathProgramCache]: Analyzing trace with hash 976010426, now seen corresponding path program 1 times [2023-02-17 23:15:59,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:15:59,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870913353] [2023-02-17 23:15:59,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:15:59,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:15:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:15:59,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 23:15:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:15:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-17 23:15:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:15:59,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-17 23:15:59,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:15:59,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870913353] [2023-02-17 23:15:59,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870913353] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 23:15:59,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 23:15:59,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 23:15:59,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044547586] [2023-02-17 23:15:59,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 23:15:59,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 23:15:59,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:15:59,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 23:15:59,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 23:15:59,506 INFO L87 Difference]: Start difference. First operand has 35 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 23:15:59,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:15:59,573 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions. [2023-02-17 23:15:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 23:15:59,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-02-17 23:15:59,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:15:59,581 INFO L225 Difference]: With dead ends: 61 [2023-02-17 23:15:59,581 INFO L226 Difference]: Without dead ends: 27 [2023-02-17 23:15:59,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 23:15:59,587 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 23:15:59,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 23:15:59,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-17 23:15:59,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-17 23:15:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-17 23:15:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2023-02-17 23:15:59,618 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 24 [2023-02-17 23:15:59,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:15:59,619 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2023-02-17 23:15:59,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 23:15:59,619 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2023-02-17 23:15:59,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 23:15:59,621 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:15:59,621 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:15:59,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 23:15:59,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 23:15:59,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:15:59,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1442307826, now seen corresponding path program 1 times [2023-02-17 23:15:59,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:15:59,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958939949] [2023-02-17 23:15:59,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:15:59,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:15:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:15:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 23:15:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:15:59,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-17 23:15:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:15:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-17 23:15:59,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:15:59,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958939949] [2023-02-17 23:15:59,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958939949] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 23:15:59,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 23:15:59,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 23:15:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816983894] [2023-02-17 23:15:59,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 23:15:59,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 23:15:59,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:15:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 23:15:59,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 23:15:59,834 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 23:15:59,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:15:59,911 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2023-02-17 23:15:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 23:15:59,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-02-17 23:15:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:15:59,915 INFO L225 Difference]: With dead ends: 50 [2023-02-17 23:15:59,915 INFO L226 Difference]: Without dead ends: 32 [2023-02-17 23:15:59,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 23:15:59,921 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 23:15:59,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 71 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 23:15:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-17 23:15:59,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2023-02-17 23:15:59,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-17 23:15:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-02-17 23:15:59,966 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 24 [2023-02-17 23:15:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:15:59,966 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-02-17 23:15:59,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 23:15:59,967 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-02-17 23:15:59,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-17 23:15:59,968 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:15:59,968 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:15:59,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 23:15:59,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 23:15:59,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:15:59,973 INFO L85 PathProgramCache]: Analyzing trace with hash 915772386, now seen corresponding path program 1 times [2023-02-17 23:15:59,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:15:59,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902297416] [2023-02-17 23:15:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:15:59,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:16:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:00,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 23:16:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-17 23:16:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-17 23:16:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-17 23:16:00,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:16:00,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902297416] [2023-02-17 23:16:00,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902297416] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 23:16:00,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878485033] [2023-02-17 23:16:00,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:16:00,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 23:16:00,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 23:16:00,595 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) [2023-02-17 23:16:00,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 23:16:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:00,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 38 conjunts are in the unsatisfiable core [2023-02-17 23:16:00,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 23:16:00,975 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 21 treesize of output 13 [2023-02-17 23:16:01,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:01,045 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 28 treesize of output 28 [2023-02-17 23:16:01,071 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 29 treesize of output 17 [2023-02-17 23:16:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 23:16:01,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 23:16:01,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878485033] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 23:16:01,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 23:16:01,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2023-02-17 23:16:01,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454479408] [2023-02-17 23:16:01,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 23:16:01,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-17 23:16:01,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:16:01,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-17 23:16:01,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=615, Unknown=4, NotChecked=0, Total=702 [2023-02-17 23:16:01,183 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-17 23:16:01,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:16:01,652 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2023-02-17 23:16:01,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-17 23:16:01,652 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 34 [2023-02-17 23:16:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:16:01,653 INFO L225 Difference]: With dead ends: 55 [2023-02-17 23:16:01,653 INFO L226 Difference]: Without dead ends: 32 [2023-02-17 23:16:01,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=1005, Unknown=4, NotChecked=0, Total=1190 [2023-02-17 23:16:01,655 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 78 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 23:16:01,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 204 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 23:16:01,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-17 23:16:01,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-02-17 23:16:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-17 23:16:01,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-02-17 23:16:01,661 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 34 [2023-02-17 23:16:01,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:16:01,662 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-02-17 23:16:01,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 19 states have internal predecessors, (44), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-17 23:16:01,662 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-02-17 23:16:01,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-17 23:16:01,663 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:16:01,663 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:16:01,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 23:16:01,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 23:16:01,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 23:16:01,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:16:01,871 INFO L85 PathProgramCache]: Analyzing trace with hash 917619428, now seen corresponding path program 1 times [2023-02-17 23:16:01,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:16:01,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730836837] [2023-02-17 23:16:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:16:01,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:16:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 23:16:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-17 23:16:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:09,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-02-17 23:16:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-17 23:16:09,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:16:09,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730836837] [2023-02-17 23:16:09,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730836837] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 23:16:09,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173145516] [2023-02-17 23:16:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:16:09,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 23:16:09,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 23:16:09,773 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) [2023-02-17 23:16:09,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 23:16:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:16:10,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 210 conjunts are in the unsatisfiable core [2023-02-17 23:16:10,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 23:16:10,700 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 6 treesize of output 5 [2023-02-17 23:16:10,737 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 [2023-02-17 23:16:10,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:10,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2023-02-17 23:16:10,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:10,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-17 23:16:10,956 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 13 treesize of output 9 [2023-02-17 23:16:11,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,004 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 69 [2023-02-17 23:16:11,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-02-17 23:16:11,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-02-17 23:16:11,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2023-02-17 23:16:11,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2023-02-17 23:16:11,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2023-02-17 23:16:11,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2023-02-17 23:16:11,389 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 156 treesize of output 67 [2023-02-17 23:16:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 44 treesize of output 34 [2023-02-17 23:16:11,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-17 23:16:11,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-02-17 23:16:11,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,580 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,580 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 166 treesize of output 150 [2023-02-17 23:16:11,586 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,587 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 1 case distinctions, treesize of input 20 treesize of output 48 [2023-02-17 23:16:11,592 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 7 treesize of output 3 [2023-02-17 23:16:11,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,601 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 85 [2023-02-17 23:16:11,610 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:11,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-17 23:16:11,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,857 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 733 treesize of output 529 [2023-02-17 23:16:11,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,873 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 387 treesize of output 411 [2023-02-17 23:16:11,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,899 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 263 treesize of output 1507 [2023-02-17 23:16:11,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 594 treesize of output 534 [2023-02-17 23:16:11,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:11,978 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:11,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 786 treesize of output 810 [2023-02-17 23:16:12,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:12,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:12,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:12,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:12,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:12,030 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:16:12,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 976 treesize of output 951 [2023-02-17 23:16:12,070 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 3 [2023-02-17 23:16:12,156 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,165 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,184 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,207 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,235 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 106 [2023-02-17 23:16:12,290 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,294 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 125 treesize of output 106 [2023-02-17 23:16:12,323 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,360 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,380 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:12,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 97 treesize of output 94 [2023-02-17 23:16:12,415 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,436 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:12,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 97 treesize of output 94 [2023-02-17 23:16:12,503 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:16:12,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 97 treesize of output 94 [2023-02-17 23:16:12,540 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,563 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:12,585 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:16:37,413 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 23:17:02,063 WARN L207 Elim1Store]: Array PQE input equivalent to false