./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3dbbec33 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-1.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 f8d14145608efc0a8f321a178564faff63399ecbab28641c0c2971fec318068f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 10:54:12,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 10:54:12,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 10:54:12,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 10:54:12,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 10:54:12,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 10:54:12,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 10:54:12,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 10:54:12,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 10:54:12,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 10:54:12,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 10:54:12,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 10:54:12,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 10:54:12,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 10:54:12,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 10:54:12,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 10:54:12,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 10:54:12,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 10:54:12,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 10:54:12,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 10:54:12,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 10:54:12,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 10:54:12,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 10:54:12,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 10:54:12,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 10:54:12,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 10:54:12,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 10:54:12,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 10:54:12,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 10:54:12,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 10:54:12,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 10:54:12,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 10:54:12,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 10:54:12,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 10:54:12,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 10:54:12,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 10:54:12,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 10:54:12,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 10:54:12,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 10:54:12,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 10:54:12,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 10:54:12,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 10:54:12,217 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 10:54:12,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 10:54:12,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 10:54:12,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 10:54:12,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 10:54:12,219 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 10:54:12,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 10:54:12,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 10:54:12,220 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 10:54:12,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 10:54:12,220 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 10:54:12,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 10:54:12,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 10:54:12,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 10:54:12,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 10:54:12,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 10:54:12,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 10:54:12,221 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 10:54:12,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 10:54:12,222 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 10:54:12,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 10:54:12,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 10:54:12,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 10:54:12,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 10:54:12,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 10:54:12,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 10:54:12,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 10:54:12,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 10:54:12,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 10:54:12,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 10:54:12,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 10:54:12,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 10:54:12,224 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 10:54:12,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 10:54:12,224 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 10:54:12,224 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8d14145608efc0a8f321a178564faff63399ecbab28641c0c2971fec318068f [2023-02-14 10:54:12,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 10:54:12,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 10:54:12,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 10:54:12,415 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 10:54:12,416 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 10:54:12,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-1.i [2023-02-14 10:54:13,451 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 10:54:13,621 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 10:54:13,621 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-1.i [2023-02-14 10:54:13,629 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022638828/15aed2bb129b4b198908a858e552dd09/FLAG998d5479b [2023-02-14 10:54:13,639 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022638828/15aed2bb129b4b198908a858e552dd09 [2023-02-14 10:54:13,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 10:54:13,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 10:54:13,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 10:54:13,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 10:54:13,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 10:54:13,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:13,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3d70e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13, skipping insertion in model container [2023-02-14 10:54:13,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:13,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 10:54:13,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 10:54:13,826 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-1.i[22636,22649] [2023-02-14 10:54:13,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 10:54:13,874 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 10:54:13,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-1.i[22636,22649] [2023-02-14 10:54:13,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 10:54:13,944 INFO L208 MainTranslator]: Completed translation [2023-02-14 10:54:13,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13 WrapperNode [2023-02-14 10:54:13,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 10:54:13,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 10:54:13,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 10:54:13,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 10:54:13,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:13,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:13,993 INFO L138 Inliner]: procedures = 129, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 200 [2023-02-14 10:54:13,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 10:54:13,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 10:54:13,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 10:54:13,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 10:54:14,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,017 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 10:54:14,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 10:54:14,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 10:54:14,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 10:54:14,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (1/1) ... [2023-02-14 10:54:14,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 10:54:14,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 10:54:14,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-14 10:54:14,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-14 10:54:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-02-14 10:54:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-02-14 10:54:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-14 10:54:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 10:54:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-14 10:54:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-14 10:54:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-14 10:54:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_prev [2023-02-14 10:54:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_prev [2023-02-14 10:54:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-14 10:54:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-14 10:54:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure chain_node [2023-02-14 10:54:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_node [2023-02-14 10:54:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 10:54:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_next [2023-02-14 10:54:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_next [2023-02-14 10:54:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 10:54:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 10:54:14,241 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 10:54:14,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 10:54:14,518 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 10:54:14,522 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 10:54:14,523 INFO L300 CfgBuilder]: Removed 33 assume(true) statements. [2023-02-14 10:54:14,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 10:54:14 BoogieIcfgContainer [2023-02-14 10:54:14,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 10:54:14,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 10:54:14,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 10:54:14,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 10:54:14,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 10:54:13" (1/3) ... [2023-02-14 10:54:14,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fe5e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 10:54:14, skipping insertion in model container [2023-02-14 10:54:14,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:54:13" (2/3) ... [2023-02-14 10:54:14,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fe5e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 10:54:14, skipping insertion in model container [2023-02-14 10:54:14,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 10:54:14" (3/3) ... [2023-02-14 10:54:14,529 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev-1.i [2023-02-14 10:54:14,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 10:54:14,540 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 10:54:14,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 10:54:14,575 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27a75e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 10:54:14,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 10:54:14,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 75 states have (on average 1.68) internal successors, (126), 83 states have internal predecessors, (126), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-02-14 10:54:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-14 10:54:14,584 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 10:54:14,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 10:54:14,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 10:54:14,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 10:54:14,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1660370747, now seen corresponding path program 1 times [2023-02-14 10:54:14,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 10:54:14,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823215848] [2023-02-14 10:54:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 10:54:14,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 10:54:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 10:54:14,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 10:54:14,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823215848] [2023-02-14 10:54:14,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823215848] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 10:54:14,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 10:54:14,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 10:54:14,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220785087] [2023-02-14 10:54:14,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 10:54:14,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-14 10:54:14,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 10:54:14,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-14 10:54:14,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 10:54:14,731 INFO L87 Difference]: Start difference. First operand has 96 states, 75 states have (on average 1.68) internal successors, (126), 83 states have internal predecessors, (126), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 10:54:14,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 10:54:14,756 INFO L93 Difference]: Finished difference Result 188 states and 326 transitions. [2023-02-14 10:54:14,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 10:54:14,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-14 10:54:14,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 10:54:14,765 INFO L225 Difference]: With dead ends: 188 [2023-02-14 10:54:14,766 INFO L226 Difference]: Without dead ends: 88 [2023-02-14 10:54:14,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 10:54:14,771 INFO L413 NwaCegarLoop]: 115 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, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 10:54:14,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 10:54:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-02-14 10:54:14,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-02-14 10:54:14,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 76 states have internal predecessors, (83), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-14 10:54:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2023-02-14 10:54:14,798 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 16 [2023-02-14 10:54:14,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 10:54:14,798 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2023-02-14 10:54:14,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 10:54:14,799 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2023-02-14 10:54:14,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-14 10:54:14,800 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 10:54:14,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 10:54:14,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 10:54:14,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 10:54:14,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 10:54:14,801 INFO L85 PathProgramCache]: Analyzing trace with hash -871113262, now seen corresponding path program 1 times [2023-02-14 10:54:14,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 10:54:14,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736173169] [2023-02-14 10:54:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 10:54:14,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 10:54:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:15,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 10:54:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-02-14 10:54:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 10:54:16,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 10:54:16,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736173169] [2023-02-14 10:54:16,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736173169] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 10:54:16,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044012486] [2023-02-14 10:54:16,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 10:54:16,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 10:54:16,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 10:54:16,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 10:54:16,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 10:54:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:16,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 65 conjunts are in the unsatisfiable core [2023-02-14 10:54:16,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 10:54:16,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2023-02-14 10:54:16,561 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-02-14 10:54:16,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2023-02-14 10:54:16,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-14 10:54:16,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-02-14 10:54:16,591 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:16,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 9 [2023-02-14 10:54:16,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-02-14 10:54:16,621 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) (or (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (let ((.cse0 (select v_DerPreprocessor_3 |c_chain_node_#in~ppnode#1.offset|))) (and (= .cse0 .cse1) (not (= .cse0 0)) (not (= .cse0 |c_chain_node_#in~ppnode#1.base|)) (= (select (store (store (store (store |c_#memory_$Pointer$.base| .cse0 v_DerPreprocessor_2) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_3) .cse0 v_DerPreprocessor_2) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_3) .cse0) (select |c_#memory_$Pointer$.base| .cse0))))) (and (= .cse1 |c_chain_node_#in~ppnode#1.base|) (not (= .cse1 0))))) is different from true [2023-02-14 10:54:16,637 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) (or (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (let ((.cse0 (select v_DerPreprocessor_3 |c_chain_node_#in~ppnode#1.offset|))) (and (= .cse0 .cse1) (not (= .cse0 0)) (= (select (store (store (store (store |c_#memory_$Pointer$.base| .cse0 v_DerPreprocessor_2) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_3) .cse0 v_DerPreprocessor_2) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_3) .cse0) (select |c_#memory_$Pointer$.base| .cse0))))) (and (= .cse1 |c_chain_node_#in~ppnode#1.base|) (not (= .cse1 0))))) is different from true [2023-02-14 10:54:16,671 WARN L859 $PredicateComparison]: unable to prove that (and (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#p1~0#1.base|) (not (= |c_ULTIMATE.start_create_sll_~pp2#1.base| |c_ULTIMATE.start_create_sll_~#list~0#1.base|)) (= |c_ULTIMATE.start_main_~#p1~0#1.offset| |c_ULTIMATE.start_create_sll_~pp1#1.offset|) (= |c_ULTIMATE.start_create_sll_~#list~0#1.offset| 0) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_sll_~#list~0#1.base|) |c_ULTIMATE.start_create_sll_~#list~0#1.offset|))) (or (and (= .cse0 |c_ULTIMATE.start_create_sll_~#list~0#1.base|) (not (= .cse0 0))) (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (let ((.cse1 (select v_DerPreprocessor_3 |c_ULTIMATE.start_create_sll_~#list~0#1.offset|))) (and (= .cse1 .cse0) (not (= .cse1 0)) (= (select (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_2) |c_ULTIMATE.start_create_sll_~#list~0#1.base| v_DerPreprocessor_3) .cse1 v_DerPreprocessor_2) |c_ULTIMATE.start_create_sll_~#list~0#1.base| v_DerPreprocessor_3) .cse1) (select |c_#memory_$Pointer$.base| .cse1))))))) (= |c_ULTIMATE.start_main_~#p1~0#1.base| |c_ULTIMATE.start_create_sll_~pp1#1.base|) (not (= |c_ULTIMATE.start_main_~#p1~0#1.base| |c_ULTIMATE.start_create_sll_~#list~0#1.base|)) (= |c_ULTIMATE.start_main_~#p1~0#1.offset| 0)) is different from true [2023-02-14 10:54:16,749 INFO L321 Elim1Store]: treesize reduction 25, result has 34.2 percent of original size [2023-02-14 10:54:16,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 71 [2023-02-14 10:54:16,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-02-14 10:54:16,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2023-02-14 10:54:16,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2023-02-14 10:54:16,959 WARN L859 $PredicateComparison]: unable to prove that (exists ((|chain_node_~node~0#1.base| Int) (v_ArrVal_245 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (and (= (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_245) |c_chain_node_#in~ppnode#1.base| v_ArrVal_246) |c_#memory_$Pointer$.base|) (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|))) is different from true [2023-02-14 10:54:16,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 10:54:16,984 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-14 10:54:16,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 33 [2023-02-14 10:54:16,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-02-14 10:54:17,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-02-14 10:54:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-14 10:54:17,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 10:54:19,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044012486] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 10:54:19,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-14 10:54:19,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 28 [2023-02-14 10:54:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413918892] [2023-02-14 10:54:19,170 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-14 10:54:19,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-14 10:54:19,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 10:54:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-14 10:54:19,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=528, Unknown=11, NotChecked=196, Total=812 [2023-02-14 10:54:19,173 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand has 28 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 25 states have internal predecessors, (48), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-14 10:54:21,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 10:54:21,009 INFO L93 Difference]: Finished difference Result 132 states and 163 transitions. [2023-02-14 10:54:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-14 10:54:21,009 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 25 states have internal predecessors, (48), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 33 [2023-02-14 10:54:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 10:54:21,012 INFO L225 Difference]: With dead ends: 132 [2023-02-14 10:54:21,012 INFO L226 Difference]: Without dead ends: 129 [2023-02-14 10:54:21,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=170, Invalid=1161, Unknown=17, NotChecked=292, Total=1640 [2023-02-14 10:54:21,014 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 139 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 548 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-14 10:54:21,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 696 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1346 Invalid, 1 Unknown, 548 Unchecked, 1.2s Time] [2023-02-14 10:54:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-02-14 10:54:21,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 100. [2023-02-14 10:54:21,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 87 states have internal predecessors, (97), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-14 10:54:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2023-02-14 10:54:21,025 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 33 [2023-02-14 10:54:21,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 10:54:21,025 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2023-02-14 10:54:21,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 25 states have internal predecessors, (48), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-14 10:54:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2023-02-14 10:54:21,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-14 10:54:21,026 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 10:54:21,026 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 10:54:21,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-14 10:54:21,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 10:54:21,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 10:54:21,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 10:54:21,233 INFO L85 PathProgramCache]: Analyzing trace with hash 371633244, now seen corresponding path program 1 times [2023-02-14 10:54:21,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 10:54:21,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664903235] [2023-02-14 10:54:21,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 10:54:21,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 10:54:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:21,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 10:54:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:21,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-02-14 10:54:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 10:54:22,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 10:54:22,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664903235] [2023-02-14 10:54:22,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664903235] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 10:54:22,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967046970] [2023-02-14 10:54:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 10:54:22,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 10:54:22,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 10:54:22,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 10:54:22,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 10:54:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:54:22,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 80 conjunts are in the unsatisfiable core [2023-02-14 10:54:22,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 10:54:22,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-14 10:54:22,402 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-02-14 10:54:22,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2023-02-14 10:54:22,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-02-14 10:54:22,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-02-14 10:54:22,429 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:22,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 9 [2023-02-14 10:54:22,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-02-14 10:54:22,470 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) (or (and (= .cse0 |c_chain_node_#in~ppnode#1.base|) (not (= .cse0 0))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse1 (select v_DerPreprocessor_6 |c_chain_node_#in~ppnode#1.offset|))) (and (not (= .cse1 |c_chain_node_#in~ppnode#1.base|)) (= (select (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_5) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_6) .cse1 v_DerPreprocessor_5) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_6) .cse1) (select |c_#memory_$Pointer$.base| .cse1)) (= .cse1 .cse0) (not (= .cse1 0))))))) is different from true [2023-02-14 10:54:22,488 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) (or (and (= .cse0 |c_chain_node_#in~ppnode#1.base|) (not (= .cse0 0))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse1 (select v_DerPreprocessor_6 |c_chain_node_#in~ppnode#1.offset|))) (and (= (select (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_5) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_6) .cse1 v_DerPreprocessor_5) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_6) .cse1) (select |c_#memory_$Pointer$.base| .cse1)) (= .cse1 .cse0) (not (= .cse1 0))))))) is different from true [2023-02-14 10:54:22,739 INFO L321 Elim1Store]: treesize reduction 48, result has 43.5 percent of original size [2023-02-14 10:54:22,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 77 treesize of output 94 [2023-02-14 10:54:22,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-02-14 10:54:22,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-02-14 10:54:22,886 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-02-14 10:54:22,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2023-02-14 10:54:22,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-02-14 10:54:22,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-02-14 10:54:23,088 WARN L859 $PredicateComparison]: unable to prove that (exists ((|chain_node_~node~0#1.base| Int) (v_ArrVal_477 (Array Int Int)) (|chain_node_~node~0#1.offset| Int)) (and (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (not (= |chain_node_~node~0#1.base| 0)) (= (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| (store v_ArrVal_477 |chain_node_~node~0#1.offset| (select (select (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_477) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))))) (store .cse0 |c_chain_node_#in~ppnode#1.base| (store (select .cse0 |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| |chain_node_~node~0#1.base|))) |c_#memory_$Pointer$.base|))) is different from true [2023-02-14 10:54:23,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 10:54:23,261 INFO L321 Elim1Store]: treesize reduction 151, result has 32.9 percent of original size [2023-02-14 10:54:23,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 302 [2023-02-14 10:54:23,346 INFO L321 Elim1Store]: treesize reduction 55, result has 38.2 percent of original size [2023-02-14 10:54:23,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 217 [2023-02-14 10:54:23,566 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:23,591 INFO L321 Elim1Store]: treesize reduction 55, result has 19.1 percent of original size [2023-02-14 10:54:23,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 315 treesize of output 356 [2023-02-14 10:54:23,973 INFO L321 Elim1Store]: treesize reduction 83, result has 1.2 percent of original size [2023-02-14 10:54:23,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 388 treesize of output 385 [2023-02-14 10:54:24,001 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2023-02-14 10:54:24,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 389 treesize of output 274 [2023-02-14 10:54:24,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 933 treesize of output 955 [2023-02-14 10:54:25,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:25,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:25,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:25,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:25,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2023-02-14 10:54:25,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2023-02-14 10:54:25,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2023-02-14 10:54:26,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 2304 treesize of output 2270 [2023-02-14 10:54:26,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:26,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:26,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:27,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:27,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:27,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:27,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:27,295 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:27,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 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 33 treesize of output 49 [2023-02-14 10:54:27,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 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 33 treesize of output 49 [2023-02-14 10:54:27,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 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 33 treesize of output 49 [2023-02-14 10:54:27,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 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 33 treesize of output 49 [2023-02-14 10:54:27,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:27,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 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 33 treesize of output 49 [2023-02-14 10:54:27,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 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 33 treesize of output 49 [2023-02-14 10:54:27,731 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:27,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 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 33 treesize of output 49 [2023-02-14 10:54:27,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:27,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:28,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:28,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:28,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:28,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:28,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:28,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 25 treesize of output 25 [2023-02-14 10:54:28,499 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:28,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 25 treesize of output 25 [2023-02-14 10:54:28,559 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:28,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 25 treesize of output 25 [2023-02-14 10:54:28,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 25 treesize of output 25 [2023-02-14 10:54:28,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 25 treesize of output 25 [2023-02-14 10:54:28,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 25 treesize of output 25 [2023-02-14 10:54:28,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 25 treesize of output 25 [2023-02-14 10:54:28,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:29,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:29,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:29,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:29,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:29,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:29,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 10:54:29,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:29,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:29,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:29,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:29,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:29,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 10:54:29,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:29,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2023-02-14 10:54:29,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-02-14 10:54:29,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-02-14 10:54:30,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-02-14 10:54:30,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-02-14 10:58:10,797 WARN L233 SmtUtils]: Spent 3.40m on a formula simplification that was a NOOP. DAG size: 4816 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-02-14 10:58:10,799 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 10:58:10,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 49 select indices, 49 select index equivalence classes, 0 disjoint index pairs (out of 1176 index pairs), introduced 59 new quantified variables, introduced 1176 case distinctions, treesize of input 162898023 treesize of output 158837373