./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/dll-reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/forester-heap/dll-reverse.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 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 05:59:17,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 05:59:17,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 05:59:17,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 05:59:17,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 05:59:17,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 05:59:17,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 05:59:17,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 05:59:17,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 05:59:17,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 05:59:17,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 05:59:17,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 05:59:17,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 05:59:17,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 05:59:17,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 05:59:17,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 05:59:17,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 05:59:17,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 05:59:17,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 05:59:17,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 05:59:17,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 05:59:17,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 05:59:17,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 05:59:17,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 05:59:17,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 05:59:17,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 05:59:17,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 05:59:17,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 05:59:17,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 05:59:17,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 05:59:17,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 05:59:17,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 05:59:17,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 05:59:17,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 05:59:17,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 05:59:17,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 05:59:17,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 05:59:17,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 05:59:17,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 05:59:17,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 05:59:17,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 05:59:17,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 05:59:17,273 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 05:59:17,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 05:59:17,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 05:59:17,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 05:59:17,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 05:59:17,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 05:59:17,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 05:59:17,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 05:59:17,276 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 05:59:17,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 05:59:17,280 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 05:59:17,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 05:59:17,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 05:59:17,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 05:59:17,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 05:59:17,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 05:59:17,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 05:59:17,282 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 05:59:17,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 05:59:17,282 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 05:59:17,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 05:59:17,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 05:59:17,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 05:59:17,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 05:59:17,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 05:59:17,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 05:59:17,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 05:59:17,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 05:59:17,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 05:59:17,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 05:59:17,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 05:59:17,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 05:59:17,285 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 05:59:17,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 05:59:17,286 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 05:59:17,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2 [2023-02-17 05:59:17,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 05:59:17,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 05:59:17,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 05:59:17,563 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 05:59:17,563 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 05:59:17,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-reverse.i [2023-02-17 05:59:18,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 05:59:18,965 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 05:59:18,965 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-reverse.i [2023-02-17 05:59:18,975 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12af91b19/b0ad3e6ed58441e7b3553f8a9af4b2e2/FLAG49edd40a6 [2023-02-17 05:59:18,989 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12af91b19/b0ad3e6ed58441e7b3553f8a9af4b2e2 [2023-02-17 05:59:18,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 05:59:18,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 05:59:18,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 05:59:18,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 05:59:18,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 05:59:18,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 05:59:18" (1/1) ... [2023-02-17 05:59:18,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7200a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:18, skipping insertion in model container [2023-02-17 05:59:18,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 05:59:18" (1/1) ... [2023-02-17 05:59:19,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 05:59:19,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 05:59:19,289 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/forester-heap/dll-reverse.i[22309,22322] [2023-02-17 05:59:19,297 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/forester-heap/dll-reverse.i[22394,22407] [2023-02-17 05:59:19,302 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/forester-heap/dll-reverse.i[22924,22937] [2023-02-17 05:59:19,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 05:59:19,313 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 05:59:19,342 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/forester-heap/dll-reverse.i[22309,22322] [2023-02-17 05:59:19,343 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/forester-heap/dll-reverse.i[22394,22407] [2023-02-17 05:59:19,347 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/forester-heap/dll-reverse.i[22924,22937] [2023-02-17 05:59:19,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 05:59:19,370 INFO L208 MainTranslator]: Completed translation [2023-02-17 05:59:19,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19 WrapperNode [2023-02-17 05:59:19,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 05:59:19,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 05:59:19,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 05:59:19,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 05:59:19,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,442 INFO L138 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 144 [2023-02-17 05:59:19,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 05:59:19,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 05:59:19,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 05:59:19,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 05:59:19,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,493 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 05:59:19,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 05:59:19,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 05:59:19,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 05:59:19,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (1/1) ... [2023-02-17 05:59:19,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 05:59:19,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:59:19,538 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 05:59:19,560 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 05:59:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 05:59:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 05:59:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-17 05:59:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 05:59:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-17 05:59:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-17 05:59:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 05:59:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 05:59:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 05:59:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 05:59:19,728 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 05:59:19,730 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 05:59:19,982 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 05:59:19,987 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 05:59:19,994 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2023-02-17 05:59:19,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 05:59:19 BoogieIcfgContainer [2023-02-17 05:59:19,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 05:59:19,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 05:59:19,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 05:59:20,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 05:59:20,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 05:59:18" (1/3) ... [2023-02-17 05:59:20,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5932e5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 05:59:20, skipping insertion in model container [2023-02-17 05:59:20,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:59:19" (2/3) ... [2023-02-17 05:59:20,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5932e5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 05:59:20, skipping insertion in model container [2023-02-17 05:59:20,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 05:59:19" (3/3) ... [2023-02-17 05:59:20,005 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-reverse.i [2023-02-17 05:59:20,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 05:59:20,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-02-17 05:59:20,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 05:59:20,062 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;@1fb73650, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 05:59:20,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-02-17 05:59:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 36 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) [2023-02-17 05:59:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 05:59:20,072 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:59:20,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 05:59:20,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:59:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:59:20,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1813527409, now seen corresponding path program 1 times [2023-02-17 05:59:20,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:59:20,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430919642] [2023-02-17 05:59:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:20,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:59:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:59:20,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:59:20,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430919642] [2023-02-17 05:59:20,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430919642] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 05:59:20,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 05:59:20,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 05:59:20,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758335079] [2023-02-17 05:59:20,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 05:59:20,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 05:59:20,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:59:20,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 05:59:20,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 05:59:20,286 INFO L87 Difference]: Start difference. First operand has 37 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 36 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-02-17 05:59:20,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:59:20,312 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2023-02-17 05:59:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 05:59:20,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-02-17 05:59:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:59:20,321 INFO L225 Difference]: With dead ends: 70 [2023-02-17 05:59:20,321 INFO L226 Difference]: Without dead ends: 31 [2023-02-17 05:59:20,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 05:59:20,327 INFO L413 NwaCegarLoop]: 45 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, 45 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 [2023-02-17 05:59:20,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 05:59:20,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-17 05:59:20,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-17 05:59:20,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 30 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) [2023-02-17 05:59:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-02-17 05:59:20,391 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 7 [2023-02-17 05:59:20,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:59:20,392 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-02-17 05:59:20,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-02-17 05:59:20,392 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-02-17 05:59:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 05:59:20,393 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:59:20,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 05:59:20,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 05:59:20,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:59:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:59:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1038813004, now seen corresponding path program 1 times [2023-02-17 05:59:20,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:59:20,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649206173] [2023-02-17 05:59:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:20,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:59:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:59:20,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:59:20,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649206173] [2023-02-17 05:59:20,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649206173] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 05:59:20,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 05:59:20,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 05:59:20,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51604093] [2023-02-17 05:59:20,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 05:59:20,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 05:59:20,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:59:20,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 05:59:20,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 05:59:20,746 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:20,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:59:20,914 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2023-02-17 05:59:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 05:59:20,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-17 05:59:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:59:20,916 INFO L225 Difference]: With dead ends: 71 [2023-02-17 05:59:20,916 INFO L226 Difference]: Without dead ends: 45 [2023-02-17 05:59:20,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-17 05:59:20,918 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 05:59:20,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 92 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 05:59:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-17 05:59:20,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2023-02-17 05:59:20,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2023-02-17 05:59:20,925 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 10 [2023-02-17 05:59:20,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:59:20,925 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2023-02-17 05:59:20,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-02-17 05:59:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 05:59:20,926 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:59:20,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 05:59:20,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 05:59:20,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:59:20,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:59:20,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1038754672, now seen corresponding path program 1 times [2023-02-17 05:59:20,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:59:20,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725170020] [2023-02-17 05:59:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:20,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:59:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:59:21,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:59:21,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725170020] [2023-02-17 05:59:21,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725170020] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 05:59:21,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 05:59:21,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 05:59:21,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890656026] [2023-02-17 05:59:21,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 05:59:21,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 05:59:21,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:59:21,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 05:59:21,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 05:59:21,019 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:21,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:59:21,116 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2023-02-17 05:59:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 05:59:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-17 05:59:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:59:21,118 INFO L225 Difference]: With dead ends: 64 [2023-02-17 05:59:21,119 INFO L226 Difference]: Without dead ends: 50 [2023-02-17 05:59:21,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 05:59:21,121 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 47 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 05:59:21,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 54 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 05:59:21,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-17 05:59:21,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2023-02-17 05:59:21,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 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) [2023-02-17 05:59:21,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2023-02-17 05:59:21,134 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 10 [2023-02-17 05:59:21,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:59:21,134 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2023-02-17 05:59:21,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:21,135 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2023-02-17 05:59:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-17 05:59:21,135 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:59:21,136 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 05:59:21,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 05:59:21,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:59:21,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:59:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1414194791, now seen corresponding path program 1 times [2023-02-17 05:59:21,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:59:21,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114387675] [2023-02-17 05:59:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:21,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:59:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:21,398 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 05:59:21,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:59:21,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114387675] [2023-02-17 05:59:21,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114387675] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:59:21,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260534241] [2023-02-17 05:59:21,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:21,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:59:21,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:59:21,404 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 05:59:21,406 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 05:59:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:21,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-17 05:59:21,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:59:21,646 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 25 treesize of output 17 [2023-02-17 05:59:21,652 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 05:59:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 05:59:21,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 05:59:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 05:59:21,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260534241] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 05:59:21,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 05:59:21,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2023-02-17 05:59:21,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444219064] [2023-02-17 05:59:21,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 05:59:21,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 05:59:21,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:59:21,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 05:59:21,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 05:59:21,686 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:21,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:59:21,873 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2023-02-17 05:59:21,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-17 05:59:21,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-17 05:59:21,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:59:21,878 INFO L225 Difference]: With dead ends: 50 [2023-02-17 05:59:21,878 INFO L226 Difference]: Without dead ends: 46 [2023-02-17 05:59:21,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-02-17 05:59:21,880 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 05:59:21,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 61 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 05:59:21,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-17 05:59:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2023-02-17 05:59:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:21,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-02-17 05:59:21,892 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 18 [2023-02-17 05:59:21,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:59:21,893 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-02-17 05:59:21,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-02-17 05:59:21,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 05:59:21,894 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:59:21,894 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] [2023-02-17 05:59:21,904 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 05:59:22,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:59:22,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:59:22,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:59:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1635066921, now seen corresponding path program 1 times [2023-02-17 05:59:22,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:59:22,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61337881] [2023-02-17 05:59:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:22,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:59:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:22,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:59:22,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:59:22,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61337881] [2023-02-17 05:59:22,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61337881] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:59:22,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514727312] [2023-02-17 05:59:22,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:22,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:59:22,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:59:22,719 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 05:59:22,722 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 05:59:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:22,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-17 05:59:22,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:59:22,864 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 05:59:22,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 24 [2023-02-17 05:59:22,930 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:22,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 155 [2023-02-17 05:59:22,950 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 117 treesize of output 101 [2023-02-17 05:59:22,973 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:22,973 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 1 case distinctions, treesize of input 13 treesize of output 17 [2023-02-17 05:59:23,214 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-17 05:59:23,601 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:23,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2023-02-17 05:59:23,606 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 8 [2023-02-17 05:59:23,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:59:23,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 05:59:23,626 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:23,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 37 treesize of output 30 [2023-02-17 05:59:23,630 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:23,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 133 [2023-02-17 05:59:23,634 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 112 treesize of output 104 [2023-02-17 05:59:23,639 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 104 treesize of output 100 [2023-02-17 05:59:23,645 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 100 treesize of output 98 [2023-02-17 05:59:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:59:23,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514727312] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 05:59:23,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 05:59:23,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-17 05:59:23,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100778006] [2023-02-17 05:59:23,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 05:59:23,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-17 05:59:23,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:59:23,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-17 05:59:23,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-02-17 05:59:23,745 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:24,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:59:24,641 INFO L93 Difference]: Finished difference Result 79 states and 97 transitions. [2023-02-17 05:59:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 05:59:24,641 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-17 05:59:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:59:24,642 INFO L225 Difference]: With dead ends: 79 [2023-02-17 05:59:24,642 INFO L226 Difference]: Without dead ends: 69 [2023-02-17 05:59:24,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2023-02-17 05:59:24,643 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 190 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-17 05:59:24,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 130 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-17 05:59:24,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-17 05:59:24,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 49. [2023-02-17 05:59:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 48 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2023-02-17 05:59:24,664 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 20 [2023-02-17 05:59:24,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:59:24,665 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2023-02-17 05:59:24,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:59:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-02-17 05:59:24,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 05:59:24,666 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:59:24,666 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] [2023-02-17 05:59:24,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 05:59:24,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:59:24,873 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:59:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:59:24,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1979842005, now seen corresponding path program 1 times [2023-02-17 05:59:24,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:59:24,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062766320] [2023-02-17 05:59:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:24,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:59:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 05:59:25,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:59:25,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062766320] [2023-02-17 05:59:25,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062766320] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 05:59:25,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 05:59:25,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 05:59:25,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775286240] [2023-02-17 05:59:25,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 05:59:25,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 05:59:25,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:59:25,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 05:59:25,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 05:59:25,029 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-02-17 05:59:25,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:59:25,160 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2023-02-17 05:59:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 05:59:25,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 [2023-02-17 05:59:25,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:59:25,161 INFO L225 Difference]: With dead ends: 64 [2023-02-17 05:59:25,161 INFO L226 Difference]: Without dead ends: 51 [2023-02-17 05:59:25,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-17 05:59:25,162 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 05:59:25,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 87 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 05:59:25,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-02-17 05:59:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2023-02-17 05:59:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.25) internal successors, (60), 48 states have internal predecessors, (60), 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) [2023-02-17 05:59:25,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2023-02-17 05:59:25,184 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 20 [2023-02-17 05:59:25,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:59:25,184 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2023-02-17 05:59:25,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-02-17 05:59:25,185 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2023-02-17 05:59:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 05:59:25,185 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:59:25,185 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] [2023-02-17 05:59:25,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-17 05:59:25,186 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:59:25,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:59:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash 742290787, now seen corresponding path program 2 times [2023-02-17 05:59:25,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:59:25,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178782244] [2023-02-17 05:59:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:59:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:59:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:59:26,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:59:26,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:59:26,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178782244] [2023-02-17 05:59:26,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178782244] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:59:26,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662871387] [2023-02-17 05:59:26,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 05:59:26,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:59:26,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:59:26,145 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) [2023-02-17 05:59:26,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 05:59:26,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 05:59:26,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 05:59:26,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 73 conjunts are in the unsatisfiable core [2023-02-17 05:59:26,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:59:26,479 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 05:59:26,493 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 05:59:26,516 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2023-02-17 05:59:26,520 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 40 [2023-02-17 05:59:26,525 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:26,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 184 [2023-02-17 05:59:26,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 05:59:26,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:26,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 131 [2023-02-17 05:59:26,542 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 222 treesize of output 192 [2023-02-17 05:59:26,552 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:26,553 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 13 treesize of output 17 [2023-02-17 05:59:26,572 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:26,573 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 5 case distinctions, treesize of input 79 treesize of output 98 [2023-02-17 05:59:26,628 WARN L193 Elim1Store]: Array PQE input equivalent to false [2023-02-17 05:59:36,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 05:59:38,409 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:59:38,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 258 select indices, 258 select index equivalence classes, 1 disjoint index pairs (out of 33153 index pairs), introduced 258 new quantified variables, introduced 33408 case distinctions, treesize of input 45593 treesize of output 315021