./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-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/list-ext3-properties/dll_circular_traversal-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 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 15:20:35,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 15:20:35,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 15:20:35,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 15:20:35,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 15:20:35,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 15:20:35,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 15:20:35,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 15:20:35,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 15:20:35,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 15:20:35,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 15:20:35,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 15:20:35,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 15:20:35,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 15:20:35,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 15:20:35,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 15:20:35,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 15:20:35,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 15:20:35,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 15:20:35,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 15:20:35,254 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 15:20:35,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 15:20:35,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 15:20:35,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 15:20:35,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 15:20:35,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 15:20:35,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 15:20:35,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 15:20:35,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 15:20:35,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 15:20:35,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 15:20:35,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 15:20:35,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 15:20:35,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 15:20:35,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 15:20:35,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 15:20:35,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 15:20:35,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 15:20:35,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 15:20:35,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 15:20:35,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 15:20:35,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 15:20:35,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 15:20:35,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 15:20:35,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 15:20:35,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 15:20:35,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 15:20:35,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 15:20:35,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 15:20:35,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 15:20:35,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 15:20:35,304 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 15:20:35,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 15:20:35,305 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 15:20:35,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 15:20:35,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 15:20:35,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 15:20:35,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 15:20:35,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 15:20:35,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 15:20:35,307 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 15:20:35,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 15:20:35,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 15:20:35,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 15:20:35,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 15:20:35,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 15:20:35,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 15:20:35,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:20:35,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 15:20:35,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 15:20:35,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 15:20:35,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 15:20:35,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 15:20:35,309 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 15:20:35,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 15:20:35,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 15:20:35,310 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 [2022-07-13 15:20:35,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 15:20:35,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 15:20:35,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 15:20:35,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 15:20:35,582 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 15:20:35,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2022-07-13 15:20:35,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/690c98fa4/b43cea253035457294c8c02185c2bc94/FLAG77a978b30 [2022-07-13 15:20:36,038 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 15:20:36,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2022-07-13 15:20:36,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/690c98fa4/b43cea253035457294c8c02185c2bc94/FLAG77a978b30 [2022-07-13 15:20:36,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/690c98fa4/b43cea253035457294c8c02185c2bc94 [2022-07-13 15:20:36,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 15:20:36,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 15:20:36,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 15:20:36,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 15:20:36,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 15:20:36,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27cedfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36, skipping insertion in model container [2022-07-13 15:20:36,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 15:20:36,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 15:20:36,789 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/list-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2022-07-13 15:20:36,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:20:36,803 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 15:20:36,852 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/list-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2022-07-13 15:20:36,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:20:36,880 INFO L208 MainTranslator]: Completed translation [2022-07-13 15:20:36,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36 WrapperNode [2022-07-13 15:20:36,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 15:20:36,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 15:20:36,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 15:20:36,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 15:20:36,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,932 INFO L137 Inliner]: procedures = 122, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2022-07-13 15:20:36,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 15:20:36,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 15:20:36,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 15:20:36,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 15:20:36,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 15:20:36,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 15:20:36,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 15:20:36,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 15:20:36,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (1/1) ... [2022-07-13 15:20:36,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:20:36,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:20:36,997 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 15:20:37,001 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 15:20:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-07-13 15:20:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-07-13 15:20:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 15:20:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 15:20:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 15:20:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 15:20:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 15:20:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 15:20:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 15:20:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 15:20:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 15:20:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 15:20:37,112 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 15:20:37,113 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 15:20:37,135 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-07-13 15:20:37,316 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 15:20:37,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 15:20:37,321 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-13 15:20:37,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:20:37 BoogieIcfgContainer [2022-07-13 15:20:37,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 15:20:37,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 15:20:37,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 15:20:37,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 15:20:37,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 03:20:36" (1/3) ... [2022-07-13 15:20:37,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4380c123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:20:37, skipping insertion in model container [2022-07-13 15:20:37,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:20:36" (2/3) ... [2022-07-13 15:20:37,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4380c123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:20:37, skipping insertion in model container [2022-07-13 15:20:37,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:20:37" (3/3) ... [2022-07-13 15:20:37,335 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_circular_traversal-2.i [2022-07-13 15:20:37,353 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 15:20:37,353 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 15:20:37,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 15:20:37,396 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@4db8a2e4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5841df90 [2022-07-13 15:20:37,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 15:20:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 22 states have (on average 1.5) internal successors, (33), 24 states have internal predecessors, (33), 2 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) [2022-07-13 15:20:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 15:20:37,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:20:37,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:20:37,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:20:37,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:20:37,412 INFO L85 PathProgramCache]: Analyzing trace with hash 70364748, now seen corresponding path program 1 times [2022-07-13 15:20:37,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:20:37,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387782084] [2022-07-13 15:20:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:20:37,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:20:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:20:37,620 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 15:20:37,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:20:37,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387782084] [2022-07-13 15:20:37,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387782084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:20:37,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:20:37,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 15:20:37,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283829048] [2022-07-13 15:20:37,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:20:37,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 15:20:37,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:20:37,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 15:20:37,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 15:20:37,651 INFO L87 Difference]: Start difference. First operand has 26 states, 22 states have (on average 1.5) internal successors, (33), 24 states have internal predecessors, (33), 2 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 15:20:37,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:20:37,662 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2022-07-13 15:20:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 15:20:37,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-13 15:20:37,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:20:37,667 INFO L225 Difference]: With dead ends: 41 [2022-07-13 15:20:37,668 INFO L226 Difference]: Without dead ends: 18 [2022-07-13 15:20:37,670 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 15:20:37,673 INFO L413 NwaCegarLoop]: 31 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, 31 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 15:20:37,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:20:37,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-13 15:20:37,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-13 15:20:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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 15:20:37,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-07-13 15:20:37,694 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 10 [2022-07-13 15:20:37,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:20:37,695 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-07-13 15:20:37,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 15:20:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-07-13 15:20:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 15:20:37,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:20:37,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:20:37,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 15:20:37,696 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:20:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:20:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash -273185064, now seen corresponding path program 1 times [2022-07-13 15:20:37,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:20:37,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348451406] [2022-07-13 15:20:37,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:20:37,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:20:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:20:37,768 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 15:20:37,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:20:37,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348451406] [2022-07-13 15:20:37,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348451406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:20:37,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:20:37,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 15:20:37,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978506024] [2022-07-13 15:20:37,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:20:37,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 15:20:37,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:20:37,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 15:20:37,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 15:20:37,772 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 15:20:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:20:37,787 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2022-07-13 15:20:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 15:20:37,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-13 15:20:37,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:20:37,788 INFO L225 Difference]: With dead ends: 32 [2022-07-13 15:20:37,788 INFO L226 Difference]: Without dead ends: 21 [2022-07-13 15:20:37,789 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 15:20:37,790 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:20:37,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 34 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:20:37,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-13 15:20:37,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-07-13 15:20:37,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 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 15:20:37,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-07-13 15:20:37,795 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 10 [2022-07-13 15:20:37,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:20:37,795 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-07-13 15:20:37,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 15:20:37,795 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-07-13 15:20:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 15:20:37,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:20:37,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:20:37,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 15:20:37,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:20:37,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:20:37,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2002783240, now seen corresponding path program 1 times [2022-07-13 15:20:37,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:20:37,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088381002] [2022-07-13 15:20:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:20:37,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:20:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:20:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:20:37,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:20:37,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088381002] [2022-07-13 15:20:37,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088381002] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:20:37,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58309422] [2022-07-13 15:20:37,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:20:37,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:20:37,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:20:37,923 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 15:20:37,950 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 15:20:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:20:38,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 15:20:38,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:20:38,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:20:38,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:20:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:20:38,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58309422] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 15:20:38,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 15:20:38,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-13 15:20:38,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503305347] [2022-07-13 15:20:38,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 15:20:38,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 15:20:38,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:20:38,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 15:20:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 15:20:38,112 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:20:38,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:20:38,169 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-07-13 15:20:38,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 15:20:38,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-13 15:20:38,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:20:38,171 INFO L225 Difference]: With dead ends: 39 [2022-07-13 15:20:38,171 INFO L226 Difference]: Without dead ends: 28 [2022-07-13 15:20:38,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 15:20:38,173 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:20:38,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 79 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:20:38,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-13 15:20:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-13 15:20:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:20:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-07-13 15:20:38,178 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 13 [2022-07-13 15:20:38,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:20:38,179 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-07-13 15:20:38,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:20:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-07-13 15:20:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-13 15:20:38,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:20:38,180 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:20:38,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 15:20:38,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:20:38,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:20:38,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:20:38,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1740729048, now seen corresponding path program 2 times [2022-07-13 15:20:38,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:20:38,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136889694] [2022-07-13 15:20:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:20:38,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:20:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:20:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 15:20:38,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:20:38,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136889694] [2022-07-13 15:20:38,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136889694] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:20:38,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623166463] [2022-07-13 15:20:38,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 15:20:38,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:20:38,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:20:38,808 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 15:20:38,809 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 15:20:38,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 15:20:38,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 15:20:38,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 45 conjunts are in the unsatisfiable core [2022-07-13 15:20:38,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:20:39,093 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 15:20:39,172 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-13 15:20:39,176 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 15:20:39,243 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 0 case distinctions, treesize of input 14 treesize of output 14 [2022-07-13 15:20:39,250 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 14 treesize of output 16 [2022-07-13 15:20:39,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:20:39,322 INFO L356 Elim1Store]: treesize reduction 23, result has 42.5 percent of original size [2022-07-13 15:20:39,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 35 [2022-07-13 15:20:39,383 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 15:20:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 15:20:39,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:20:40,285 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_399 Int) (|ULTIMATE.start_dll_circular_create_~last~0#1.base| Int)) (= (select (select (store |c_#memory_int| |ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4) v_ArrVal_399)) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_main_~data_init~0#1|)) is different from false [2022-07-13 15:20:40,320 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:20:40,321 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 39 treesize of output 32 [2022-07-13 15:20:40,336 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:20:40,337 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 146 treesize of output 144 [2022-07-13 15:20:40,347 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 154 treesize of output 146 [2022-07-13 15:20:40,686 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 39 treesize of output 33 [2022-07-13 15:20:40,834 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 10 treesize of output 8 [2022-07-13 15:20:40,884 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 4 not checked. [2022-07-13 15:20:40,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623166463] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 15:20:40,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 15:20:40,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2022-07-13 15:20:40,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193415053] [2022-07-13 15:20:40,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 15:20:40,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-13 15:20:40,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:20:40,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-13 15:20:40,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=400, Unknown=1, NotChecked=40, Total=506 [2022-07-13 15:20:40,887 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 15:20:41,466 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~data_init~0#1| |c_ULTIMATE.start_dll_circular_create_~data#1|) (forall ((v_ArrVal_399 Int) (|ULTIMATE.start_dll_circular_create_~last~0#1.base| Int)) (= (select (select (store |c_#memory_int| |ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4) v_ArrVal_399)) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_main_~data_init~0#1|)) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| 0) (= 0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) (<= 0 |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset|) (= |c_ULTIMATE.start_main_~data_init~0#1| 1) (= (select |c_#valid| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) 1) (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from false [2022-07-13 15:20:42,125 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_399 Int) (|ULTIMATE.start_dll_circular_create_~last~0#1.base| Int)) (= (select (select (store |c_#memory_int| |ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4) v_ArrVal_399)) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_main_~data_init~0#1|)) (= 0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) (<= 0 |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset|) (= |c_ULTIMATE.start_main_~data_init~0#1| 1) (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from false [2022-07-13 15:20:42,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:20:42,204 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-07-13 15:20:42,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 15:20:42,204 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 22 [2022-07-13 15:20:42,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:20:42,205 INFO L225 Difference]: With dead ends: 32 [2022-07-13 15:20:42,205 INFO L226 Difference]: Without dead ends: 30 [2022-07-13 15:20:42,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=147, Invalid=732, Unknown=3, NotChecked=174, Total=1056 [2022-07-13 15:20:42,207 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 15:20:42,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 138 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 174 Invalid, 0 Unknown, 47 Unchecked, 0.1s Time] [2022-07-13 15:20:42,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-13 15:20:42,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-13 15:20:42,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 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 15:20:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-07-13 15:20:42,212 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22 [2022-07-13 15:20:42,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:20:42,212 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-07-13 15:20:42,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 15:20:42,212 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-07-13 15:20:42,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 15:20:42,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:20:42,213 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:20:42,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-13 15:20:42,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-13 15:20:42,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:20:42,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:20:42,438 INFO L85 PathProgramCache]: Analyzing trace with hash 625081166, now seen corresponding path program 1 times [2022-07-13 15:20:42,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:20:42,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032967808] [2022-07-13 15:20:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:20:42,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:20:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:20:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:20:42,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:20:42,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032967808] [2022-07-13 15:20:42,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032967808] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:20:42,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883456970] [2022-07-13 15:20:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:20:42,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:20:42,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:20:42,952 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 15:20:42,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 15:20:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:20:43,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 93 conjunts are in the unsatisfiable core [2022-07-13 15:20:43,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:20:43,105 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 15:20:43,156 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-13 15:20:43,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-07-13 15:20:43,192 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-13 15:20:43,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-07-13 15:20:43,305 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-07-13 15:20:43,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-07-13 15:20:43,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-07-13 15:20:43,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 15:20:43,494 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-07-13 15:20:43,495 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-07-13 15:20:43,574 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-07-13 15:20:43,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:20:43,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-07-13 15:20:43,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:20:43,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-07-13 15:20:43,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:20:43,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 25 [2022-07-13 15:20:43,607 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-13 15:20:43,608 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 56 [2022-07-13 15:20:43,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-07-13 15:20:43,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 30 [2022-07-13 15:20:43,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:20:43,708 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 43 [2022-07-13 15:20:43,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:20:43,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2022-07-13 15:20:43,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2022-07-13 15:20:43,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:20:43,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2022-07-13 15:20:43,739 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-07-13 15:20:43,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 15:20:43,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2022-07-13 15:20:43,748 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 15:20:43,849 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 33 treesize of output 15 [2022-07-13 15:20:43,854 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 14 treesize of output 16 [2022-07-13 15:20:43,858 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 19 treesize of output 7 [2022-07-13 15:20:43,910 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 15:20:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 15:20:43,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:20:43,944 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_674 (Array Int Int))) (= |c_ULTIMATE.start_main_~data_init~0#1| (let ((.cse0 (+ |c_ULTIMATE.start_main_~ptr~0#1.offset| 4))) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~ptr~0#1.base| v_ArrVal_674) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~ptr~0#1.base|) .cse0)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~ptr~0#1.base|) .cse0))))) is different from false [2022-07-13 15:20:43,953 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_674 (Array Int Int))) (= |c_ULTIMATE.start_main_~data_init~0#1| (let ((.cse0 (+ 4 |c_ULTIMATE.start_dll_circular_create_#res#1.offset|))) (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_#res#1.base| v_ArrVal_674) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_create_#res#1.base|) .cse0)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_#res#1.base|) .cse0))))) is different from false [2022-07-13 15:20:43,962 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_661 (Array Int Int)) (v_ArrVal_674 (Array Int Int)) (v_ArrVal_667 Int) (v_ArrVal_665 (Array Int Int))) (= (let ((.cse0 (+ 4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4) v_ArrVal_667)) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| v_ArrVal_674) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_665) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse0)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_661) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse0))) |c_ULTIMATE.start_main_~data_init~0#1|)) is different from false [2022-07-13 15:20:43,979 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:20:43,980 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 109 [2022-07-13 15:20:43,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 15:20:43,990 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:20:43,991 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 2 case distinctions, treesize of input 102 treesize of output 108 [2022-07-13 15:20:43,996 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 732 treesize of output 714 [2022-07-13 15:20:44,003 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 710 treesize of output 694 [2022-07-13 15:20:44,013 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 351 treesize of output 343 [2022-07-13 15:20:44,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 15:20:44,026 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:20:44,027 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 2 case distinctions, treesize of input 686 treesize of output 600 [2022-07-13 15:20:44,035 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 4256 treesize of output 4154 [2022-07-13 15:20:44,057 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 4150 treesize of output 4022 [2022-07-13 15:20:44,071 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 4022 treesize of output 3958 [2022-07-13 15:21:47,206 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_8 (Array Int Int)) (v_arrayElimCell_41 Int) (|ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| Int) (v_ArrVal_674 (Array Int Int)) (v_ArrVal_646 Int) (v_arrayElimCell_42 Int) (v_ArrVal_667 Int) (v_arrayElimCell_45 Int) (v_arrayElimCell_44 Int)) (let ((.cse1 (store (let ((.cse3 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| v_arrayElimArr_8))) (store .cse4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (+ 8 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_646))))) (store .cse3 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (store (select .cse3 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| 4) v_ArrVal_667))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| v_ArrVal_674)) (.cse0 (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (or (and .cse0 (= (select (select .cse1 v_arrayElimCell_41) v_arrayElimCell_44) |c_ULTIMATE.start_main_~data_init~0#1|)) (not (= |c_ULTIMATE.start_dll_circular_create_~data#1| (select v_arrayElimArr_8 |ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))) (and (let ((.cse2 (= |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (or (and (= (select (select .cse1 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_main_~data_init~0#1|) (not .cse2)) (and .cse2 (= (select (select .cse1 v_arrayElimCell_42) v_arrayElimCell_45) |c_ULTIMATE.start_main_~data_init~0#1|)))) (not .cse0))))) is different from false [2022-07-13 15:21:51,501 INFO L356 Elim1Store]: treesize reduction 12, result has 64.7 percent of original size [2022-07-13 15:21:51,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 52 [2022-07-13 15:21:53,787 INFO L356 Elim1Store]: treesize reduction 12, result has 64.7 percent of original size [2022-07-13 15:21:53,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 78 [2022-07-13 15:21:54,955 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:21:54,956 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 308 treesize of output 220 [2022-07-13 15:21:56,097 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:21:56,110 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 61108710 treesize of output 59537444 [2022-07-13 15:24:42,424 WARN L233 SmtUtils]: Spent 2.77m on a formula simplification that was a NOOP. DAG size: 10219 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 15:24:43,291 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:24:43,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59537444 treesize of output 56054236