./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/sll-optional-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/forester-heap/sll-optional-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 8b0f1d623fff7bbdf74e6250d2f53fb98e44ca7ba1aae1265f5b0871b427fba0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:30:35,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:30:35,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:30:35,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:30:35,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:30:35,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:30:35,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:30:35,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:30:35,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:30:35,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:30:35,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:30:35,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:30:35,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:30:35,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:30:35,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:30:35,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:30:35,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:30:35,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:30:35,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:30:35,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:30:35,235 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:30:35,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:30:35,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:30:35,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:30:35,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:30:35,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:30:35,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:30:35,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:30:35,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:30:35,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:30:35,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:30:35,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:30:35,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:30:35,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:30:35,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:30:35,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:30:35,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:30:35,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:30:35,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:30:35,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:30:35,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:30:35,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:30:35,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:30:35,291 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:30:35,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:30:35,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:30:35,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:30:35,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:30:35,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:30:35,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:30:35,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:30:35,294 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:30:35,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:30:35,295 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:30:35,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:30:35,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:30:35,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:30:35,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:30:35,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:30:35,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:30:35,297 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:30:35,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:30:35,297 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:30:35,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:30:35,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:30:35,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:30:35,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:30:35,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:30:35,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:30:35,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:30:35,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:30:35,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:30:35,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:30:35,299 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:30:35,299 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:30:35,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:30:35,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b0f1d623fff7bbdf74e6250d2f53fb98e44ca7ba1aae1265f5b0871b427fba0 [2022-07-19 14:30:35,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:30:35,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:30:35,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:30:35,520 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:30:35,521 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:30:35,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-optional-1.i [2022-07-19 14:30:35,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d213bb54/c832a31718794b448ae1b3313540923e/FLAG6c2d338a5 [2022-07-19 14:30:36,071 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:30:36,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-optional-1.i [2022-07-19 14:30:36,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d213bb54/c832a31718794b448ae1b3313540923e/FLAG6c2d338a5 [2022-07-19 14:30:36,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d213bb54/c832a31718794b448ae1b3313540923e [2022-07-19 14:30:36,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:30:36,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:30:36,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:30:36,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:30:36,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:30:36,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:36,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4089dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36, skipping insertion in model container [2022-07-19 14:30:36,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:36,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:30:36,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:30:36,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-optional-1.i[22688,22701] [2022-07-19 14:30:36,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:30:36,854 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:30:36,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-optional-1.i[22688,22701] [2022-07-19 14:30:36,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:30:36,941 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:30:36,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36 WrapperNode [2022-07-19 14:30:36,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:30:36,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:30:36,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:30:36,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:30:36,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:36,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,006 INFO L137 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2022-07-19 14:30:37,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:30:37,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:30:37,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:30:37,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:30:37,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:30:37,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:30:37,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:30:37,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:30:37,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (1/1) ... [2022-07-19 14:30:37,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:30:37,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:30:37,081 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) [2022-07-19 14:30:37,104 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 [2022-07-19 14:30:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:30:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:30:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 14:30:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:30:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 14:30:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 14:30:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:30:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:30:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:30:37,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:30:37,210 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:30:37,212 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:30:37,451 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:30:37,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:30:37,456 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-19 14:30:37,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:30:37 BoogieIcfgContainer [2022-07-19 14:30:37,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:30:37,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:30:37,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:30:37,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:30:37,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:30:36" (1/3) ... [2022-07-19 14:30:37,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d61fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:30:37, skipping insertion in model container [2022-07-19 14:30:37,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:30:36" (2/3) ... [2022-07-19 14:30:37,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d61fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:30:37, skipping insertion in model container [2022-07-19 14:30:37,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:30:37" (3/3) ... [2022-07-19 14:30:37,471 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-optional-1.i [2022-07-19 14:30:37,483 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:30:37,483 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:30:37,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:30:37,531 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@52c42e68, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20916c83 [2022-07-19 14:30:37,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:30:37,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2022-07-19 14:30:37,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-19 14:30:37,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:30:37,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:30:37,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:30:37,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:30:37,558 INFO L85 PathProgramCache]: Analyzing trace with hash 573386926, now seen corresponding path program 1 times [2022-07-19 14:30:37,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:30:37,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400535733] [2022-07-19 14:30:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:30:37,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:30:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:30:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:30:37,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:30:37,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400535733] [2022-07-19 14:30:37,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400535733] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:30:37,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:30:37,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:30:37,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771355605] [2022-07-19 14:30:37,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:30:37,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:30:37,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:30:37,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:30:37,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:30:37,764 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-07-19 14:30:37,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:30:37,778 INFO L93 Difference]: Finished difference Result 51 states and 77 transitions. [2022-07-19 14:30:37,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:30:37,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2022-07-19 14:30:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:30:37,785 INFO L225 Difference]: With dead ends: 51 [2022-07-19 14:30:37,785 INFO L226 Difference]: Without dead ends: 22 [2022-07-19 14:30:37,788 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 [2022-07-19 14:30:37,791 INFO L413 NwaCegarLoop]: 40 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, 40 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 [2022-07-19 14:30:37,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:30:37,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-19 14:30:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-19 14:30:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 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) [2022-07-19 14:30:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2022-07-19 14:30:37,815 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 15 [2022-07-19 14:30:37,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:30:37,815 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-07-19 14:30:37,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-07-19 14:30:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-07-19 14:30:37,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 14:30:37,817 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:30:37,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:30:37,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:30:37,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:30:37,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:30:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1170055612, now seen corresponding path program 1 times [2022-07-19 14:30:37,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:30:37,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515327039] [2022-07-19 14:30:37,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:30:37,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:30:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:30:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:30:37,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:30:37,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515327039] [2022-07-19 14:30:37,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515327039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:30:37,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:30:37,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:30:37,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128198976] [2022-07-19 14:30:37,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:30:37,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:30:37,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:30:37,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:30:37,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:30:37,905 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-07-19 14:30:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:30:37,933 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2022-07-19 14:30:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:30:37,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-07-19 14:30:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:30:37,935 INFO L225 Difference]: With dead ends: 37 [2022-07-19 14:30:37,935 INFO L226 Difference]: Without dead ends: 25 [2022-07-19 14:30:37,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:30:37,948 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:30:37,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 75 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:30:37,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-07-19 14:30:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-07-19 14:30:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 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) [2022-07-19 14:30:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2022-07-19 14:30:37,954 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 32 transitions. Word has length 16 [2022-07-19 14:30:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:30:37,954 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 32 transitions. [2022-07-19 14:30:37,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-07-19 14:30:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2022-07-19 14:30:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 14:30:37,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:30:37,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:30:37,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:30:37,956 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:30:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:30:37,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1170053690, now seen corresponding path program 1 times [2022-07-19 14:30:37,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:30:37,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914916301] [2022-07-19 14:30:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:30:37,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:30:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:30:38,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:30:38,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:30:38,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914916301] [2022-07-19 14:30:38,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914916301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:30:38,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:30:38,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:30:38,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083201476] [2022-07-19 14:30:38,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:30:38,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:30:38,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:30:38,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:30:38,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:30:38,081 INFO L87 Difference]: Start difference. First operand 24 states and 32 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-07-19 14:30:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:30:38,222 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2022-07-19 14:30:38,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 14:30:38,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-07-19 14:30:38,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:30:38,224 INFO L225 Difference]: With dead ends: 41 [2022-07-19 14:30:38,224 INFO L226 Difference]: Without dead ends: 39 [2022-07-19 14:30:38,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-19 14:30:38,226 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:30:38,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 14:30:38,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-19 14:30:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2022-07-19 14:30:38,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 28 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:30:38,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2022-07-19 14:30:38,231 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 16 [2022-07-19 14:30:38,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:30:38,231 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2022-07-19 14:30:38,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-07-19 14:30:38,232 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2022-07-19 14:30:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 14:30:38,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:30:38,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:30:38,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 14:30:38,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:30:38,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:30:38,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1171900732, now seen corresponding path program 1 times [2022-07-19 14:30:38,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:30:38,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286359868] [2022-07-19 14:30:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:30:38,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:30:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:30:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:30:38,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:30:38,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286359868] [2022-07-19 14:30:38,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286359868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:30:38,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:30:38,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 14:30:38,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557757194] [2022-07-19 14:30:38,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:30:38,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 14:30:38,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:30:38,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 14:30:38,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:30:38,409 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2022-07-19 14:30:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:30:38,673 INFO L93 Difference]: Finished difference Result 93 states and 115 transitions. [2022-07-19 14:30:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 14:30:38,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 16 [2022-07-19 14:30:38,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:30:38,674 INFO L225 Difference]: With dead ends: 93 [2022-07-19 14:30:38,674 INFO L226 Difference]: Without dead ends: 74 [2022-07-19 14:30:38,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-07-19 14:30:38,676 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 102 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:30:38,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 79 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 14:30:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-19 14:30:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 42. [2022-07-19 14:30:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 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) [2022-07-19 14:30:38,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2022-07-19 14:30:38,683 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 16 [2022-07-19 14:30:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:30:38,684 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2022-07-19 14:30:38,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2022-07-19 14:30:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2022-07-19 14:30:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 14:30:38,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:30:38,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:30:38,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 14:30:38,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:30:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:30:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash 604953672, now seen corresponding path program 1 times [2022-07-19 14:30:38,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:30:38,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261565899] [2022-07-19 14:30:38,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:30:38,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:30:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:30:38,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:30:38,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:30:38,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261565899] [2022-07-19 14:30:38,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261565899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:30:38,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:30:38,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:30:38,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523272909] [2022-07-19 14:30:38,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:30:38,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:30:38,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:30:38,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:30:38,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:30:38,761 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-07-19 14:30:38,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:30:38,885 INFO L93 Difference]: Finished difference Result 87 states and 108 transitions. [2022-07-19 14:30:38,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:30:38,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-07-19 14:30:38,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:30:38,890 INFO L225 Difference]: With dead ends: 87 [2022-07-19 14:30:38,890 INFO L226 Difference]: Without dead ends: 64 [2022-07-19 14:30:38,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 14:30:38,893 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 74 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:30:38,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 73 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 14:30:38,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-19 14:30:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 40. [2022-07-19 14:30:38,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 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) [2022-07-19 14:30:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-07-19 14:30:38,910 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 16 [2022-07-19 14:30:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:30:38,910 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-07-19 14:30:38,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-07-19 14:30:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-07-19 14:30:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:30:38,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:30:38,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:30:38,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 14:30:38,916 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:30:38,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:30:38,917 INFO L85 PathProgramCache]: Analyzing trace with hash 466614784, now seen corresponding path program 1 times [2022-07-19 14:30:38,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:30:38,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979269547] [2022-07-19 14:30:38,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:30:38,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:30:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:30:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:30:39,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:30:39,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979269547] [2022-07-19 14:30:39,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979269547] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:30:39,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:30:39,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 14:30:39,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244554388] [2022-07-19 14:30:39,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:30:39,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 14:30:39,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:30:39,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 14:30:39,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:30:39,019 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-07-19 14:30:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:30:39,139 INFO L93 Difference]: Finished difference Result 86 states and 107 transitions. [2022-07-19 14:30:39,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 14:30:39,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2022-07-19 14:30:39,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:30:39,140 INFO L225 Difference]: With dead ends: 86 [2022-07-19 14:30:39,140 INFO L226 Difference]: Without dead ends: 84 [2022-07-19 14:30:39,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:30:39,141 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:30:39,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 110 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 14:30:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-07-19 14:30:39,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 50. [2022-07-19 14:30:39,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 49 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:30:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 65 transitions. [2022-07-19 14:30:39,149 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 65 transitions. Word has length 17 [2022-07-19 14:30:39,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:30:39,149 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 65 transitions. [2022-07-19 14:30:39,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-07-19 14:30:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2022-07-19 14:30:39,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 14:30:39,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:30:39,151 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:30:39,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 14:30:39,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:30:39,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:30:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1690516158, now seen corresponding path program 1 times [2022-07-19 14:30:39,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:30:39,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786398130] [2022-07-19 14:30:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:30:39,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:30:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:30:39,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:30:39,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:30:39,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786398130] [2022-07-19 14:30:39,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786398130] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 14:30:39,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402163067] [2022-07-19 14:30:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:30:39,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 14:30:39,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:30:39,431 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) [2022-07-19 14:30:39,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 14:30:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:30:39,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-19 14:30:39,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:30:39,614 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 [2022-07-19 14:30:39,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-07-19 14:30:39,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-07-19 14:30:39,687 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 10 treesize of output 9 [2022-07-19 14:30:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,700 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 0 case distinctions, treesize of input 70 treesize of output 42 [2022-07-19 14:30:39,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,708 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 34 treesize of output 28 [2022-07-19 14:30:39,714 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 14 treesize of output 13 [2022-07-19 14:30:39,735 INFO L356 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-07-19 14:30:39,736 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 29 treesize of output 33 [2022-07-19 14:30:39,741 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 10 treesize of output 9 [2022-07-19 14:30:39,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-07-19 14:30:39,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,939 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-07-19 14:30:39,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 52 [2022-07-19 14:30:39,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:39,966 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-07-19 14:30:39,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 61 [2022-07-19 14:30:40,010 INFO L356 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2022-07-19 14:30:40,011 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 28 treesize of output 45 [2022-07-19 14:30:40,026 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2022-07-19 14:30:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:40,176 INFO L356 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-07-19 14:30:40,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 108 treesize of output 103 [2022-07-19 14:30:40,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:40,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:40,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:40,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2022-07-19 14:30:40,198 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 12 treesize of output 11 [2022-07-19 14:30:40,218 INFO L356 Elim1Store]: treesize reduction 12, result has 65.7 percent of original size [2022-07-19 14:30:40,218 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 31 treesize of output 35 [2022-07-19 14:30:40,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:30:40,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:30:40,839 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:30:40,840 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 127 treesize of output 115 [2022-07-19 14:30:42,244 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_348 (Array Int Int)) (v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc10#1.base_7| Int) (v_ArrVal_342 (Array Int Int)) (v_ArrVal_344 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_arrayElimArr_5) |v_ULTIMATE.start_main_#t~malloc10#1.base_7| v_ArrVal_342)) (.cse3 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_344) |v_ULTIMATE.start_main_#t~malloc10#1.base_7| v_ArrVal_348)) (.cse4 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~head~0#1.base|) .cse4)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) .cse4))) (or (not (= (select v_arrayElimArr_5 (+ |c_ULTIMATE.start_main_~x~0#1.offset| 4)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_7|) 0)) (and (= (select (select .cse0 .cse1) .cse2) 0) (= (select (select .cse3 .cse1) .cse2) 0)) (and (= |c_ULTIMATE.start_main_~head~0#1.base| .cse1) (= .cse2 |c_ULTIMATE.start_main_~head~0#1.offset|)))))) is different from false [2022-07-19 14:30:45,467 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_348 (Array Int Int)) (v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc10#1.base_7| Int) (v_ArrVal_342 (Array Int Int)) (v_ArrVal_339 Int) (v_ArrVal_344 (Array Int Int))) (let ((.cse3 (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| 0)) v_ArrVal_339 v_arrayElimArr_5) |v_ULTIMATE.start_main_#t~malloc10#1.base_7| v_ArrVal_342)) (.cse0 (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_339)) v_ArrVal_339 v_ArrVal_344) |v_ULTIMATE.start_main_#t~malloc10#1.base_7| v_ArrVal_348)) (.cse4 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) .cse4)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~head~0#1.base|) .cse4))) (or (not (= (select (store |c_#valid| v_ArrVal_339 1) |v_ULTIMATE.start_main_#t~malloc10#1.base_7|) 0)) (not (= (select |c_#valid| v_ArrVal_339) 0)) (and (= 0 (select (select .cse0 .cse1) .cse2)) (= (select (select .cse3 .cse1) .cse2) 0)) (not (= (select v_arrayElimArr_5 4) 0)) (and (= .cse1 |c_ULTIMATE.start_main_~head~0#1.base|) (= .cse2 |c_ULTIMATE.start_main_~head~0#1.offset|)))))) is different from false [2022-07-19 14:30:51,694 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_348 (Array Int Int)) (v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc10#1.base_7| Int) (v_ArrVal_342 (Array Int Int)) (v_ArrVal_339 Int) (v_ArrVal_344 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_24| Int)) (let ((.cse3 (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_24| 0)) v_ArrVal_339 v_arrayElimArr_5) |v_ULTIMATE.start_main_#t~malloc10#1.base_7| v_ArrVal_342)) (.cse2 (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_24| v_ArrVal_339)) v_ArrVal_339 v_ArrVal_344) |v_ULTIMATE.start_main_#t~malloc10#1.base_7| v_ArrVal_348)) (.cse4 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~head~0#1.base|) .cse4)) (.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~head~0#1.base|) .cse4))) (or (not (= (select (store |c_#valid| v_ArrVal_339 1) |v_ULTIMATE.start_main_#t~malloc10#1.base_7|) 0)) (and (= .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) (= .cse1 |c_ULTIMATE.start_main_~head~0#1.offset|)) (and (= (select (select .cse2 .cse0) .cse1) 0) (= (select (select .cse3 .cse0) .cse1) 0)) (not (= (select |c_#valid| v_ArrVal_339) 0)) (not (<= |v_ULTIMATE.start_main_~x~0#1.offset_24| |c_ULTIMATE.start_main_~head~0#1.offset|)) (not (= (select v_arrayElimArr_5 4) 0)))))) is different from false [2022-07-19 14:30:51,799 INFO L356 Elim1Store]: treesize reduction 15, result has 67.4 percent of original size [2022-07-19 14:30:51,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 912 treesize of output 766 [2022-07-19 14:30:52,198 INFO L356 Elim1Store]: treesize reduction 72, result has 78.6 percent of original size [2022-07-19 14:30:52,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 256536 treesize of output 252335 [2022-07-19 14:30:53,046 INFO L356 Elim1Store]: treesize reduction 15, result has 67.4 percent of original size [2022-07-19 14:30:53,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 422453 treesize of output 306807 [2022-07-19 14:30:53,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:30:53,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:30:53,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:30:54,506 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:30:54,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 4268797 treesize of output 4194873 [2022-07-19 14:31:03,527 WARN L233 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 9652 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 14:31:12,227 WARN L233 SmtUtils]: Spent 8.67s on a formula simplification that was a NOOP. DAG size: 9649 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 14:31:13,627 INFO L356 Elim1Store]: treesize reduction 22, result has 92.9 percent of original size [2022-07-19 14:31:13,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 4272045 treesize of output 3703017 [2022-07-19 14:31:22,876 WARN L233 SmtUtils]: Spent 9.23s on a formula simplification that was a NOOP. DAG size: 9707 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 14:31:32,126 WARN L233 SmtUtils]: Spent 9.23s on a formula simplification that was a NOOP. DAG size: 9704 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 14:31:32,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:31:32,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:31:33,076 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:31:33,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3928142 treesize of output 3889274 [2022-07-19 14:32:33,708 WARN L233 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 9830 DAG size of output: 9827 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 14:32:34,978 INFO L356 Elim1Store]: treesize reduction 22, result has 92.9 percent of original size [2022-07-19 14:32:34,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 3855414 treesize of output 3454022 [2022-07-19 14:32:45,603 WARN L233 SmtUtils]: Spent 10.61s on a formula simplification that was a NOOP. DAG size: 9868 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 14:32:46,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:32:47,351 INFO L356 Elim1Store]: treesize reduction 24, result has 93.2 percent of original size [2022-07-19 14:32:47,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 3453846 treesize of output 3244564 [2022-07-19 14:32:58,678 WARN L233 SmtUtils]: Spent 11.31s on a formula simplification that was a NOOP. DAG size: 9937 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 14:33:09,912 WARN L233 SmtUtils]: Spent 11.21s on a formula simplification that was a NOOP. DAG size: 9920 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 14:33:10,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 14:33:10,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 14:33:10,869 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 14:33:10,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 3355730 treesize of output 3310372