./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/dll-sorted-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-sorted-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 15:02:26,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 15:02:26,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 15:02:26,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 15:02:26,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 15:02:26,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 15:02:26,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 15:02:26,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 15:02:26,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 15:02:26,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 15:02:26,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 15:02:26,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 15:02:26,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 15:02:26,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 15:02:26,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 15:02:26,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 15:02:26,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 15:02:26,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 15:02:27,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 15:02:27,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 15:02:27,007 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 15:02:27,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 15:02:27,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 15:02:27,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 15:02:27,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 15:02:27,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 15:02:27,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 15:02:27,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 15:02:27,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 15:02:27,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 15:02:27,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 15:02:27,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 15:02:27,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 15:02:27,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 15:02:27,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 15:02:27,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 15:02:27,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 15:02:27,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 15:02:27,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 15:02:27,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 15:02:27,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 15:02:27,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 15:02:27,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 15:02:27,049 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 15:02:27,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 15:02:27,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 15:02:27,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 15:02:27,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 15:02:27,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 15:02:27,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 15:02:27,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 15:02:27,053 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 15:02:27,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 15:02:27,054 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 15:02:27,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 15:02:27,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 15:02:27,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 15:02:27,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 15:02:27,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 15:02:27,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 15:02:27,055 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 15:02:27,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 15:02:27,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 15:02:27,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 15:02:27,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 15:02:27,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 15:02:27,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:02:27,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 15:02:27,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 [2022-07-13 15:02:27,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 15:02:27,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 15:02:27,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 15:02:27,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 15:02:27,227 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 15:02:27,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-sorted-2.i [2022-07-13 15:02:27,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe4d0c9ff/eea5a15c50bf4fd5bb9da3df84e010c9/FLAG1b30c48a7 [2022-07-13 15:02:27,690 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 15:02:27,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i [2022-07-13 15:02:27,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe4d0c9ff/eea5a15c50bf4fd5bb9da3df84e010c9/FLAG1b30c48a7 [2022-07-13 15:02:28,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe4d0c9ff/eea5a15c50bf4fd5bb9da3df84e010c9 [2022-07-13 15:02:28,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 15:02:28,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 15:02:28,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 15:02:28,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 15:02:28,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 15:02:28,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4b5743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28, skipping insertion in model container [2022-07-13 15:02:28,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 15:02:28,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 15:02:28,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2022-07-13 15:02:28,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2022-07-13 15:02:28,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2022-07-13 15:02:28,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2022-07-13 15:02:28,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2022-07-13 15:02:28,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2022-07-13 15:02:28,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:02:28,286 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 15:02:28,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2022-07-13 15:02:28,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2022-07-13 15:02:28,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2022-07-13 15:02:28,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2022-07-13 15:02:28,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2022-07-13 15:02:28,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2022-07-13 15:02:28,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:02:28,344 INFO L208 MainTranslator]: Completed translation [2022-07-13 15:02:28,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28 WrapperNode [2022-07-13 15:02:28,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 15:02:28,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 15:02:28,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 15:02:28,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 15:02:28,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,400 INFO L137 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 194 [2022-07-13 15:02:28,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 15:02:28,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 15:02:28,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 15:02:28,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 15:02:28,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 15:02:28,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 15:02:28,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 15:02:28,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 15:02:28,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (1/1) ... [2022-07-13 15:02:28,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:02:28,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:02:28,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 15:02:28,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 15:02:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 15:02:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 15:02:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 15:02:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 15:02:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 15:02:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 15:02:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 15:02:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 15:02:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 15:02:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 15:02:28,636 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 15:02:28,637 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 15:02:28,857 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 15:02:28,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 15:02:28,862 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-07-13 15:02:28,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:02:28 BoogieIcfgContainer [2022-07-13 15:02:28,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 15:02:28,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 15:02:28,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 15:02:28,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 15:02:28,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 03:02:28" (1/3) ... [2022-07-13 15:02:28,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93362f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:02:28, skipping insertion in model container [2022-07-13 15:02:28,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:02:28" (2/3) ... [2022-07-13 15:02:28,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93362f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:02:28, skipping insertion in model container [2022-07-13 15:02:28,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:02:28" (3/3) ... [2022-07-13 15:02:28,881 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-sorted-2.i [2022-07-13 15:02:28,891 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 15:02:28,891 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-13 15:02:28,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 15:02:28,927 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@443840f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@55841e9f [2022-07-13 15:02:28,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-13 15:02:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 49 states have (on average 1.8571428571428572) internal successors, (91), 55 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:02:28,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 15:02:28,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:02:28,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 15:02:28,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 15:02:28,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:02:28,940 INFO L85 PathProgramCache]: Analyzing trace with hash 890153286, now seen corresponding path program 1 times [2022-07-13 15:02:28,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:02:28,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929637984] [2022-07-13 15:02:28,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:02:28,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:02:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:02:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:02:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:02:29,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929637984] [2022-07-13 15:02:29,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929637984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:02:29,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:02:29,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 15:02:29,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804384827] [2022-07-13 15:02:29,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:02:29,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 15:02:29,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:02:29,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 15:02:29,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 15:02:29,130 INFO L87 Difference]: Start difference. First operand has 56 states, 49 states have (on average 1.8571428571428572) internal successors, (91), 55 states have internal predecessors, (91), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:02:29,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:02:29,148 INFO L93 Difference]: Finished difference Result 106 states and 172 transitions. [2022-07-13 15:02:29,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 15:02:29,149 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-07-13 15:02:29,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:02:29,155 INFO L225 Difference]: With dead ends: 106 [2022-07-13 15:02:29,155 INFO L226 Difference]: Without dead ends: 50 [2022-07-13 15:02:29,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 15:02:29,160 INFO L413 NwaCegarLoop]: 67 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, 67 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:02:29,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:02:29,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-13 15:02:29,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-07-13 15:02:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 49 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) [2022-07-13 15:02:29,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-07-13 15:02:29,185 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 6 [2022-07-13 15:02:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:02:29,185 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-07-13 15:02:29,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:02:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-07-13 15:02:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 15:02:29,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:02:29,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:02:29,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 15:02:29,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 15:02:29,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:02:29,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1806859191, now seen corresponding path program 1 times [2022-07-13 15:02:29,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:02:29,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017420225] [2022-07-13 15:02:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:02:29,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:02:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:02:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:02:29,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:02:29,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017420225] [2022-07-13 15:02:29,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017420225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:02:29,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:02:29,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 15:02:29,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949684194] [2022-07-13 15:02:29,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:02:29,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 15:02:29,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:02:29,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 15:02:29,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 15:02:29,269 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-07-13 15:02:29,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:02:29,310 INFO L93 Difference]: Finished difference Result 103 states and 126 transitions. [2022-07-13 15:02:29,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 15:02:29,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2022-07-13 15:02:29,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:02:29,313 INFO L225 Difference]: With dead ends: 103 [2022-07-13 15:02:29,314 INFO L226 Difference]: Without dead ends: 55 [2022-07-13 15:02:29,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 15:02:29,316 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 27 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:02:29,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 80 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:02:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-07-13 15:02:29,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2022-07-13 15:02:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 53 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:02:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-07-13 15:02:29,327 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 7 [2022-07-13 15:02:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:02:29,331 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-07-13 15:02:29,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-07-13 15:02:29,331 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-07-13 15:02:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 15:02:29,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:02:29,332 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:02:29,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 15:02:29,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 15:02:29,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:02:29,333 INFO L85 PathProgramCache]: Analyzing trace with hash 443319948, now seen corresponding path program 1 times [2022-07-13 15:02:29,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:02:29,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552452855] [2022-07-13 15:02:29,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:02:29,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:02:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:02:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 15:02:29,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:02:29,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552452855] [2022-07-13 15:02:29,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552452855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:02:29,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:02:29,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 15:02:29,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652593984] [2022-07-13 15:02:29,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:02:29,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 15:02:29,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:02:29,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 15:02:29,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 15:02:29,466 INFO L87 Difference]: Start difference. First operand 54 states and 65 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) [2022-07-13 15:02:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:02:29,553 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2022-07-13 15:02:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 15:02:29,554 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 11 [2022-07-13 15:02:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:02:29,554 INFO L225 Difference]: With dead ends: 87 [2022-07-13 15:02:29,555 INFO L226 Difference]: Without dead ends: 85 [2022-07-13 15:02:29,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 15:02:29,555 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 129 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 15:02:29,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 65 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 15:02:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-07-13 15:02:29,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 52. [2022-07-13 15:02:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 51 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:02:29,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2022-07-13 15:02:29,560 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 11 [2022-07-13 15:02:29,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:02:29,560 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2022-07-13 15:02:29,561 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) [2022-07-13 15:02:29,561 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2022-07-13 15:02:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-13 15:02:29,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:02:29,561 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] [2022-07-13 15:02:29,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 15:02:29,562 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 15:02:29,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:02:29,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1236050174, now seen corresponding path program 1 times [2022-07-13 15:02:29,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:02:29,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554217182] [2022-07-13 15:02:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:02:29,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:02:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:02:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:02:29,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:02:29,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554217182] [2022-07-13 15:02:29,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554217182] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:02:29,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490783570] [2022-07-13 15:02:29,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:02:29,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:02:29,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:02:29,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 15:02:29,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 15:02:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:02:30,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 57 conjunts are in the unsatisfiable core [2022-07-13 15:02:30,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:02:30,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 15:02:30,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2022-07-13 15:02:30,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2022-07-13 15:02:30,111 INFO L356 Elim1Store]: treesize reduction 50, result has 9.1 percent of original size [2022-07-13 15:02:30,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 70 [2022-07-13 15:02:30,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:30,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:30,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:30,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 15:02:30,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2022-07-13 15:02:30,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-07-13 15:02:30,130 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-07-13 15:02:30,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-07-13 15:02:30,167 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-13 15:02:30,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 45 [2022-07-13 15:02:30,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-13 15:02:30,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-07-13 15:02:30,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-07-13 15:02:30,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-13 15:02:30,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-13 15:02:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:02:30,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:02:30,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2022-07-13 15:02:30,370 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_260 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) |c_ULTIMATE.start_main_~x~0#1.base|)) (forall ((v_ArrVal_262 (Array Int Int))) (= |c_ULTIMATE.start_main_~x~0#1.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_262) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) is different from false [2022-07-13 15:02:30,388 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:02:30,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 44 [2022-07-13 15:02:30,407 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:02:30,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2022-07-13 15:02:30,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 56 [2022-07-13 15:02:30,420 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:02:30,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 238 treesize of output 205 [2022-07-13 15:02:30,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 178 [2022-07-13 15:02:30,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 110 [2022-07-13 15:02:30,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 150 [2022-07-13 15:02:30,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 98 [2022-07-13 15:02:30,543 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-13 15:02:30,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 1 [2022-07-13 15:02:30,558 WARN L833 $PredicateComparison]: unable to prove that (forall ((|#memory_$Pointer$.base| (Array Int (Array Int Int))) (v_ArrVal_251 (Array Int Int)) (v_ArrVal_254 (Array Int Int)) (|#memory_$Pointer$.offset| (Array Int (Array Int Int))) (v_ArrVal_245 (Array Int Int)) (v_ArrVal_259 Int) (v_ArrVal_246 (Array Int Int))) (or (not (= (select |c_#valid| v_ArrVal_259) 0)) (and (forall ((v_ArrVal_260 (Array Int Int))) (let ((.cse1 (store |#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_259)))) (let ((.cse0 (select (select (store .cse1 v_ArrVal_259 v_ArrVal_251) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (= .cse0 (select (select (store (store .cse1 v_ArrVal_259 v_ArrVal_254) .cse0 v_ArrVal_260) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) (forall ((v_ArrVal_262 (Array Int Int))) (let ((.cse2 (store |#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| 0)))) (= (select (select (store (store .cse2 v_ArrVal_259 v_ArrVal_245) (select (select (store (store |#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_259)) v_ArrVal_259 v_ArrVal_251) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_262) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select (select (store .cse2 v_ArrVal_259 v_ArrVal_246) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))))))) is different from false [2022-07-13 15:02:30,568 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:02:30,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 44 [2022-07-13 15:02:30,573 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:02:30,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2022-07-13 15:02:30,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 56 [2022-07-13 15:02:30,584 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:02:30,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 238 treesize of output 205 [2022-07-13 15:02:30,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 178 [2022-07-13 15:02:30,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 166 [2022-07-13 15:02:30,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 114 [2022-07-13 15:02:30,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 98 [2022-07-13 15:02:30,795 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-13 15:02:30,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 1 [2022-07-13 15:02:30,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-07-13 15:02:30,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490783570] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 15:02:30,816 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 15:02:30,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2022-07-13 15:02:30,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020976234] [2022-07-13 15:02:30,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 15:02:30,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-13 15:02:30,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:02:30,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-13 15:02:30,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=151, Unknown=2, NotChecked=50, Total=240 [2022-07-13 15:02:30,818 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:02:31,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:02:31,234 INFO L93 Difference]: Finished difference Result 109 states and 142 transitions. [2022-07-13 15:02:31,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 15:02:31,235 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-13 15:02:31,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:02:31,236 INFO L225 Difference]: With dead ends: 109 [2022-07-13 15:02:31,236 INFO L226 Difference]: Without dead ends: 107 [2022-07-13 15:02:31,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=301, Unknown=2, NotChecked=74, Total=462 [2022-07-13 15:02:31,237 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 118 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 151 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 15:02:31,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 436 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 320 Invalid, 0 Unknown, 151 Unchecked, 0.3s Time] [2022-07-13 15:02:31,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-13 15:02:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 70. [2022-07-13 15:02:31,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.353846153846154) internal successors, (88), 69 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:02:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2022-07-13 15:02:31,243 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 21 [2022-07-13 15:02:31,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:02:31,243 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2022-07-13 15:02:31,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:02:31,244 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2022-07-13 15:02:31,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-13 15:02:31,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:02:31,244 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:02:31,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 15:02:31,461 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 [2022-07-13 15:02:31,462 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 15:02:31,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:02:31,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1635781222, now seen corresponding path program 1 times [2022-07-13 15:02:31,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:02:31,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693078360] [2022-07-13 15:02:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:02:31,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:02:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:02:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:02:31,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:02:31,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693078360] [2022-07-13 15:02:31,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693078360] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:02:31,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632334433] [2022-07-13 15:02:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:02:31,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:02:31,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:02:31,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 15:02:31,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 15:02:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:02:31,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 62 conjunts are in the unsatisfiable core [2022-07-13 15:02:31,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:02:31,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 15:02:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:31,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 15:02:31,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2022-07-13 15:02:31,768 INFO L356 Elim1Store]: treesize reduction 26, result has 16.1 percent of original size [2022-07-13 15:02:31,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 253 treesize of output 190 [2022-07-13 15:02:31,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:31,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:31,797 INFO L356 Elim1Store]: treesize reduction 136, result has 3.5 percent of original size [2022-07-13 15:02:31,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 186 treesize of output 204 [2022-07-13 15:02:31,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:31,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:31,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 15:02:31,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2022-07-13 15:02:31,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-13 15:02:31,830 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-13 15:02:31,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-13 15:02:31,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-13 15:02:31,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-13 15:02:31,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-13 15:02:31,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-13 15:02:31,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 15:02:31,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 15:02:31,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 9 [2022-07-13 15:02:31,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-13 15:02:31,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-13 15:02:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:02:31,955 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-13 15:02:31,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 70 [2022-07-13 15:02:31,963 INFO L356 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-07-13 15:02:31,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 55 [2022-07-13 15:02:32,130 INFO L356 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-07-13 15:02:32,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 58 [2022-07-13 15:02:32,149 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-07-13 15:02:32,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 26 [2022-07-13 15:02:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:02:32,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:02:33,043 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_428 Int) (v_ArrVal_427 Int)) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~x~0#1.offset| 8))) (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) .cse1 v_ArrVal_428)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|) .cse1 v_ArrVal_427)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) 0)) (forall ((v_ArrVal_428 Int) (v_ArrVal_427 Int)) (= (let ((.cse3 (+ |c_ULTIMATE.start_main_~x~0#1.offset| 8))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|) .cse3 v_ArrVal_427)))) (select (select .cse2 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) .cse3 v_ArrVal_428)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse2 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) 0))) is different from false [2022-07-13 15:02:33,194 INFO L356 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2022-07-13 15:02:33,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 2410 treesize of output 1919 [2022-07-13 15:02:33,302 INFO L356 Elim1Store]: treesize reduction 27, result has 64.9 percent of original size [2022-07-13 15:02:33,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 13576 treesize of output 9241 [2022-07-13 15:02:34,986 INFO L356 Elim1Store]: treesize reduction 385, result has 63.0 percent of original size [2022-07-13 15:02:34,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 36 case distinctions, treesize of input 323738 treesize of output 276305 [2022-07-13 15:02:36,095 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:02:36,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1891936 treesize of output 1742872 [2022-07-13 15:02:45,568 WARN L233 SmtUtils]: Spent 9.45s on a formula simplification. DAG size of input: 2844 DAG size of output: 2844 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:03:25,836 WARN L233 SmtUtils]: Spent 40.24s on a formula simplification. DAG size of input: 2630 DAG size of output: 2287 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:03:25,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1613339 treesize of output 1534823 [2022-07-13 15:03:29,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1780032 treesize of output 1740284 [2022-07-13 15:03:44,125 WARN L233 SmtUtils]: Spent 14.24s on a formula simplification. DAG size of input: 2591 DAG size of output: 2577 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:03:44,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2389056 treesize of output 2274830 [2022-07-13 15:03:51,270 WARN L233 SmtUtils]: Spent 6.96s on a formula simplification that was a NOOP. DAG size: 2576 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:03:51,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2274705 treesize of output 2236149 [2022-07-13 15:03:58,449 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 2575 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:03:59,368 INFO L356 Elim1Store]: treesize reduction 156, result has 78.8 percent of original size [2022-07-13 15:03:59,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 2212014 treesize of output 2205294 [2022-07-13 15:04:06,681 WARN L233 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 2697 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:04:13,982 WARN L233 SmtUtils]: Spent 7.30s on a formula simplification that was a NOOP. DAG size: 2694 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:04:14,520 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:04:14,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 2454659 treesize of output 2429779 [2022-07-13 15:06:28,380 WARN L233 SmtUtils]: Spent 2.23m on a formula simplification. DAG size of input: 3181 DAG size of output: 3131 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:06:36,699 WARN L233 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 3123 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:06:36,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3555599 treesize of output 3502681 [2022-07-13 15:07:02,839 WARN L233 SmtUtils]: Spent 26.01s on a formula simplification. DAG size of input: 3299 DAG size of output: 3282 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:07:03,654 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:07:03,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 3642097 treesize of output 3623527