./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test25-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/ldv-regression/test25-2.c -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 04738ccb45e87cb71ee901a776c43e93b7c292454abcb1b1134d9ecc09485bab --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 08:09:40,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 08:09:40,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 08:09:40,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 08:09:40,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 08:09:40,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 08:09:40,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 08:09:40,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 08:09:40,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 08:09:40,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 08:09:40,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 08:09:40,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 08:09:40,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 08:09:40,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 08:09:40,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 08:09:40,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 08:09:40,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 08:09:40,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 08:09:40,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 08:09:40,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 08:09:40,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 08:09:40,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 08:09:40,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 08:09:40,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 08:09:40,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 08:09:40,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 08:09:40,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 08:09:40,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 08:09:40,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 08:09:40,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 08:09:40,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 08:09:40,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 08:09:40,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 08:09:40,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 08:09:40,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 08:09:40,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 08:09:40,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 08:09:40,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 08:09:40,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 08:09:40,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 08:09:40,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 08:09:40,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 08:09:40,305 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 08:09:40,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 08:09:40,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 08:09:40,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 08:09:40,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 08:09:40,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 08:09:40,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 08:09:40,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 08:09:40,307 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 08:09:40,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 08:09:40,308 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 08:09:40,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 08:09:40,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 08:09:40,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 08:09:40,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 08:09:40,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 08:09:40,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 08:09:40,309 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 08:09:40,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 08:09:40,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 08:09:40,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 08:09:40,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 08:09:40,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 08:09:40,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 08:09:40,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 08:09:40,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 08:09:40,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 08:09:40,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 08:09:40,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 08:09:40,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 08:09:40,312 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 08:09:40,312 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 08:09:40,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 08:09:40,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 08:09:40,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04738ccb45e87cb71ee901a776c43e93b7c292454abcb1b1134d9ecc09485bab [2021-12-17 08:09:40,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 08:09:40,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 08:09:40,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 08:09:40,565 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 08:09:40,565 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 08:09:40,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test25-2.c [2021-12-17 08:09:40,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044b9af25/de602abde6554f6f86e918fe7ba6a4d8/FLAGfc632816e [2021-12-17 08:09:41,024 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 08:09:41,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test25-2.c [2021-12-17 08:09:41,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044b9af25/de602abde6554f6f86e918fe7ba6a4d8/FLAGfc632816e [2021-12-17 08:09:41,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044b9af25/de602abde6554f6f86e918fe7ba6a4d8 [2021-12-17 08:09:41,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 08:09:41,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 08:09:41,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 08:09:41,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 08:09:41,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 08:09:41,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ebcf6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41, skipping insertion in model container [2021-12-17 08:09:41,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 08:09:41,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 08:09:41,262 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/ldv-regression/test25-2.c[949,962] [2021-12-17 08:09:41,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 08:09:41,274 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 08:09:41,302 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/ldv-regression/test25-2.c[949,962] [2021-12-17 08:09:41,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 08:09:41,319 INFO L208 MainTranslator]: Completed translation [2021-12-17 08:09:41,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41 WrapperNode [2021-12-17 08:09:41,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 08:09:41,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 08:09:41,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 08:09:41,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 08:09:41,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,353 INFO L137 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2021-12-17 08:09:41,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 08:09:41,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 08:09:41,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 08:09:41,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 08:09:41,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 08:09:41,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 08:09:41,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 08:09:41,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 08:09:41,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (1/1) ... [2021-12-17 08:09:41,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 08:09:41,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:09:41,407 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) [2021-12-17 08:09:41,421 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 [2021-12-17 08:09:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 08:09:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 08:09:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 08:09:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 08:09:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 08:09:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 08:09:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 08:09:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 08:09:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 08:09:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 08:09:41,531 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 08:09:41,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 08:09:41,633 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 08:09:41,638 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 08:09:41,638 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 08:09:41,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:09:41 BoogieIcfgContainer [2021-12-17 08:09:41,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 08:09:41,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 08:09:41,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 08:09:41,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 08:09:41,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 08:09:41" (1/3) ... [2021-12-17 08:09:41,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77689022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:09:41, skipping insertion in model container [2021-12-17 08:09:41,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:41" (2/3) ... [2021-12-17 08:09:41,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77689022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:09:41, skipping insertion in model container [2021-12-17 08:09:41,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:09:41" (3/3) ... [2021-12-17 08:09:41,664 INFO L111 eAbstractionObserver]: Analyzing ICFG test25-2.c [2021-12-17 08:09:41,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 08:09:41,668 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 08:09:41,733 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 08:09:41,739 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 08:09:41,740 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 08:09:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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) [2021-12-17 08:09:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-17 08:09:41,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:09:41,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 08:09:41,757 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:09:41,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:09:41,762 INFO L85 PathProgramCache]: Analyzing trace with hash -631347226, now seen corresponding path program 1 times [2021-12-17 08:09:41,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:09:41,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413583696] [2021-12-17 08:09:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:41,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:09:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 08:09:41,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:09:41,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413583696] [2021-12-17 08:09:41,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413583696] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 08:09:41,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 08:09:41,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 08:09:41,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505144984] [2021-12-17 08:09:41,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 08:09:41,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 08:09:41,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:09:42,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 08:09:42,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 08:09:42,008 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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 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) [2021-12-17 08:09:42,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:09:42,035 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2021-12-17 08:09:42,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 08:09:42,038 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 [2021-12-17 08:09:42,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:09:42,044 INFO L225 Difference]: With dead ends: 32 [2021-12-17 08:09:42,044 INFO L226 Difference]: Without dead ends: 15 [2021-12-17 08:09:42,047 INFO L932 BasicCegarLoop]: 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 [2021-12-17 08:09:42,053 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 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 [2021-12-17 08:09:42,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 34 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 08:09:42,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-17 08:09:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-12-17 08:09:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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) [2021-12-17 08:09:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-12-17 08:09:42,084 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2021-12-17 08:09:42,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:09:42,084 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-12-17 08:09:42,085 INFO L471 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) [2021-12-17 08:09:42,086 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-12-17 08:09:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-17 08:09:42,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:09:42,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 08:09:42,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 08:09:42,088 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:09:42,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:09:42,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1434190826, now seen corresponding path program 1 times [2021-12-17 08:09:42,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:09:42,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352502892] [2021-12-17 08:09:42,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:42,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:09:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 08:09:42,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:09:42,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352502892] [2021-12-17 08:09:42,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352502892] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 08:09:42,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278696253] [2021-12-17 08:09:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:42,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:42,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:09:42,166 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) [2021-12-17 08:09:42,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 08:09:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:42,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 08:09:42,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 08:09:42,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 08:09:42,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 08:09:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 08:09:42,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278696253] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 08:09:42,418 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 08:09:42,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-17 08:09:42,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886621681] [2021-12-17 08:09:42,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 08:09:42,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 08:09:42,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:09:42,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 08:09:42,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-17 08:09:42,421 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 08:09:42,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:09:42,459 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-12-17 08:09:42,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 08:09:42,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-17 08:09:42,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:09:42,463 INFO L225 Difference]: With dead ends: 29 [2021-12-17 08:09:42,463 INFO L226 Difference]: Without dead ends: 20 [2021-12-17 08:09:42,464 INFO L932 BasicCegarLoop]: 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 [2021-12-17 08:09:42,466 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 08:09:42,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 08:09:42,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-17 08:09:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-17 08:09:42,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 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) [2021-12-17 08:09:42,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-12-17 08:09:42,483 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2021-12-17 08:09:42,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:09:42,483 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-12-17 08:09:42,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 08:09:42,484 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-12-17 08:09:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-17 08:09:42,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:09:42,484 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 08:09:42,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 08:09:42,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:42,708 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:09:42,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:09:42,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1444204464, now seen corresponding path program 2 times [2021-12-17 08:09:42,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:09:42,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101691678] [2021-12-17 08:09:42,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:42,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:09:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 08:09:42,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:09:42,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101691678] [2021-12-17 08:09:42,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101691678] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 08:09:42,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946485932] [2021-12-17 08:09:42,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-17 08:09:42,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:42,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:09:42,888 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) [2021-12-17 08:09:42,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 08:09:42,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-17 08:09:42,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 08:09:42,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-17 08:09:42,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 08:09:43,101 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-12-17 08:09:43,102 INFO L388 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 34 treesize of output 12 [2021-12-17 08:09:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-17 08:09:43,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 08:09:43,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946485932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 08:09:43,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 08:09:43,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2021-12-17 08:09:43,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582715210] [2021-12-17 08:09:43,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 08:09:43,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 08:09:43,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:09:43,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 08:09:43,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-17 08:09:43,131 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-17 08:09:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:09:43,150 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-12-17 08:09:43,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 08:09:43,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 19 [2021-12-17 08:09:43,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:09:43,152 INFO L225 Difference]: With dead ends: 27 [2021-12-17 08:09:43,152 INFO L226 Difference]: Without dead ends: 22 [2021-12-17 08:09:43,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-17 08:09:43,156 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 08:09:43,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-12-17 08:09:43,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-17 08:09:43,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-17 08:09:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 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) [2021-12-17 08:09:43,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-12-17 08:09:43,163 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 19 [2021-12-17 08:09:43,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:09:43,164 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-12-17 08:09:43,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-17 08:09:43,164 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-12-17 08:09:43,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-17 08:09:43,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:09:43,165 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 08:09:43,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-17 08:09:43,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-17 08:09:43,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:09:43,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:09:43,380 INFO L85 PathProgramCache]: Analyzing trace with hash 903742421, now seen corresponding path program 1 times [2021-12-17 08:09:43,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:09:43,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355289591] [2021-12-17 08:09:43,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:43,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:09:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:43,475 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-17 08:09:43,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:09:43,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355289591] [2021-12-17 08:09:43,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355289591] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 08:09:43,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302897354] [2021-12-17 08:09:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:43,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:43,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:09:43,478 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) [2021-12-17 08:09:43,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 08:09:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:43,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 08:09:43,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 08:09:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-17 08:09:43,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 08:09:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-17 08:09:43,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302897354] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 08:09:43,698 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 08:09:43,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-12-17 08:09:43,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62201555] [2021-12-17 08:09:43,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 08:09:43,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 08:09:43,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:09:43,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 08:09:43,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-12-17 08:09:43,700 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 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) [2021-12-17 08:09:43,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:09:43,759 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2021-12-17 08:09:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 08:09:43,759 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 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) Word has length 21 [2021-12-17 08:09:43,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:09:43,760 INFO L225 Difference]: With dead ends: 45 [2021-12-17 08:09:43,760 INFO L226 Difference]: Without dead ends: 34 [2021-12-17 08:09:43,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-12-17 08:09:43,763 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 08:09:43,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 52 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 08:09:43,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-17 08:09:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-12-17 08:09:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 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) [2021-12-17 08:09:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2021-12-17 08:09:43,778 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 21 [2021-12-17 08:09:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:09:43,779 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2021-12-17 08:09:43,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 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) [2021-12-17 08:09:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2021-12-17 08:09:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-17 08:09:43,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:09:43,780 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 08:09:43,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 08:09:43,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:44,000 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:09:44,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:09:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash -926636855, now seen corresponding path program 2 times [2021-12-17 08:09:44,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:09:44,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884911621] [2021-12-17 08:09:44,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:44,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:09:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 08:09:45,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:09:45,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884911621] [2021-12-17 08:09:45,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884911621] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 08:09:45,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396722025] [2021-12-17 08:09:45,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-17 08:09:45,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:45,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:09:45,146 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 08:09:45,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 08:09:45,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-17 08:09:45,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 08:09:45,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 52 conjunts are in the unsatisfiable core [2021-12-17 08:09:45,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 08:09:45,808 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 08:09:45,811 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 08:09:45,811 INFO L388 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 27 treesize of output 12 [2021-12-17 08:09:45,854 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 08:09:45,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 08:09:45,929 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-12-17 08:09:45,930 INFO L388 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 18 treesize of output 18 [2021-12-17 08:09:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-17 08:09:45,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396722025] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 08:09:45,989 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 08:09:45,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 6] total 34 [2021-12-17 08:09:45,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395102235] [2021-12-17 08:09:45,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 08:09:45,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-17 08:09:45,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:09:45,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-17 08:09:45,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=966, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 08:09:45,991 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 34 states, 34 states have (on average 2.0294117647058822) internal successors, (69), 34 states have internal predecessors, (69), 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) [2021-12-17 08:09:46,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:09:46,665 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-12-17 08:09:46,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-17 08:09:46,666 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.0294117647058822) internal successors, (69), 34 states have internal predecessors, (69), 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 33 [2021-12-17 08:09:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:09:46,666 INFO L225 Difference]: With dead ends: 45 [2021-12-17 08:09:46,666 INFO L226 Difference]: Without dead ends: 40 [2021-12-17 08:09:46,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=325, Invalid=1655, Unknown=0, NotChecked=0, Total=1980 [2021-12-17 08:09:46,668 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 43 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 08:09:46,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 71 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 08:09:46,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-17 08:09:46,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-17 08:09:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 states have internal predecessors, (41), 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) [2021-12-17 08:09:46,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-12-17 08:09:46,673 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 33 [2021-12-17 08:09:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:09:46,673 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-12-17 08:09:46,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.0294117647058822) internal successors, (69), 34 states have internal predecessors, (69), 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) [2021-12-17 08:09:46,674 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-12-17 08:09:46,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-17 08:09:46,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:09:46,674 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 08:09:46,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 08:09:46,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:46,887 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:09:46,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:09:46,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1546516264, now seen corresponding path program 3 times [2021-12-17 08:09:46,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:09:46,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793390416] [2021-12-17 08:09:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:46,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:09:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 30 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 08:09:47,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:09:47,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793390416] [2021-12-17 08:09:47,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793390416] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 08:09:47,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68591816] [2021-12-17 08:09:47,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-17 08:09:47,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:47,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:09:47,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 08:09:47,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 08:09:48,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-17 08:09:48,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 08:09:48,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-17 08:09:48,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 08:09:48,163 INFO L388 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-17 08:09:48,167 INFO L388 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 08:09:48,425 INFO L388 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 81 treesize of output 65 [2021-12-17 08:09:48,429 INFO L388 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 65 treesize of output 25 [2021-12-17 08:09:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-17 08:09:48,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 08:09:48,684 INFO L354 Elim1Store]: treesize reduction 4, result has 81.0 percent of original size [2021-12-17 08:09:48,684 INFO L388 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 67 treesize of output 40 [2021-12-17 08:09:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-17 08:09:48,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68591816] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 08:09:48,800 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 08:09:48,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 10, 9] total 35 [2021-12-17 08:09:48,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106613370] [2021-12-17 08:09:48,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 08:09:48,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-12-17 08:09:48,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:09:48,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-12-17 08:09:48,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1054, Unknown=0, NotChecked=0, Total=1190 [2021-12-17 08:09:48,801 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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) [2021-12-17 08:09:49,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:09:49,983 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2021-12-17 08:09:49,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-17 08:09:49,983 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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 39 [2021-12-17 08:09:49,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:09:49,984 INFO L225 Difference]: With dead ends: 45 [2021-12-17 08:09:49,984 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 08:09:49,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=488, Invalid=3172, Unknown=0, NotChecked=0, Total=3660 [2021-12-17 08:09:49,986 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 37 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 08:09:49,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 13 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 08:09:49,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 08:09:49,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 08:09:49,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-17 08:09:49,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 08:09:49,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-12-17 08:09:49,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:09:49,987 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 08:09:49,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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) [2021-12-17 08:09:49,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 08:09:49,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 08:09:49,989 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 08:09:50,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 08:09:50,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 08:09:50,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 08:09:50,349 INFO L854 garLoopResultBuilder]: At program point L19(lines 17 20) the Hoare annotation is: (let ((.cse1 (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#cont~0#1.base|) |ULTIMATE.start_main_~#cont~0#1.offset|) 4)) (.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#cont~0#1.base|) |ULTIMATE.start_main_~#cont~0#1.offset|))) (and (<= (select (select |#memory_int| .cse0) .cse1) |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~pa~0#1.offset| .cse1) (= 0 |ULTIMATE.start_main_~#cont~0#1.offset|) (<= 7 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~pa~0#1.base| .cse0) (<= 1 |ULTIMATE.start_check_#res#1|) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (< |ULTIMATE.start_main_~i~0#1| (+ (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 1)))) [2021-12-17 08:09:50,349 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 08:09:50,349 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 08:09:50,349 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 08:09:50,349 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2021-12-17 08:09:50,349 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 45) no Hoare annotation was computed. [2021-12-17 08:09:50,349 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 08:09:50,349 INFO L858 garLoopResultBuilder]: For program point L29-2(lines 29 32) no Hoare annotation was computed. [2021-12-17 08:09:50,349 INFO L854 garLoopResultBuilder]: At program point L29-3(lines 29 32) the Hoare annotation is: (let ((.cse0 (= 0 |ULTIMATE.start_main_~#cont~0#1.offset|)) (.cse1 (= 0 |ULTIMATE.start_main_~#array~0#1.offset|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~j~0#1| 3)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~j~0#1| 4)) (and (= |ULTIMATE.start_main_~j~0#1| 0) .cse0 .cse1) (and (= |ULTIMATE.start_main_~j~0#1| 1) .cse0 .cse1) (and .cse0 (<= 7 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~#array~0#1.offset| 0)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~j~0#1| 5)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~j~0#1| 2)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~j~0#1| 6)))) [2021-12-17 08:09:50,349 INFO L858 garLoopResultBuilder]: For program point L29-4(lines 23 52) no Hoare annotation was computed. [2021-12-17 08:09:50,350 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 44) no Hoare annotation was computed. [2021-12-17 08:09:50,350 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 46) no Hoare annotation was computed. [2021-12-17 08:09:50,350 INFO L861 garLoopResultBuilder]: At program point L51(lines 22 52) the Hoare annotation is: true [2021-12-17 08:09:50,350 INFO L854 garLoopResultBuilder]: At program point L43(lines 23 52) the Hoare annotation is: false [2021-12-17 08:09:50,350 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 39 41) no Hoare annotation was computed. [2021-12-17 08:09:50,350 INFO L854 garLoopResultBuilder]: At program point L39-3(lines 39 41) the Hoare annotation is: (and (= |ULTIMATE.start_main_~pa~0#1.offset| (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#cont~0#1.base|) |ULTIMATE.start_main_~#cont~0#1.offset|) 4)) (= 0 |ULTIMATE.start_main_~#cont~0#1.offset|) (<= 7 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~pa~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#cont~0#1.base|) |ULTIMATE.start_main_~#cont~0#1.offset|)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (< |ULTIMATE.start_main_~i~0#1| (+ (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 1))) [2021-12-17 08:09:50,350 INFO L858 garLoopResultBuilder]: For program point L39-4(lines 39 41) no Hoare annotation was computed. [2021-12-17 08:09:50,352 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1] [2021-12-17 08:09:50,353 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 08:09:50,361 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,362 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,365 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,366 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,384 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,384 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,384 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,385 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 08:09:50 BoogieIcfgContainer [2021-12-17 08:09:50,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 08:09:50,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 08:09:50,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 08:09:50,387 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 08:09:50,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:09:41" (3/4) ... [2021-12-17 08:09:50,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 08:09:50,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-12-17 08:09:50,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-17 08:09:50,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 08:09:50,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 08:09:50,427 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] <= i && pa == #memory_$Pointer$[cont][cont] + 4) && 0 == cont) && 7 <= j) && pa == #memory_$Pointer$[cont][cont]) && 1 <= \result) && array == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1 [2021-12-17 08:09:50,443 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 08:09:50,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 08:09:50,444 INFO L158 Benchmark]: Toolchain (without parser) took 9382.96ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 66.0MB in the beginning and 99.5MB in the end (delta: -33.4MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2021-12-17 08:09:50,445 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory was 50.8MB in the beginning and 50.8MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 08:09:50,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.55ms. Allocated memory is still 94.4MB. Free memory was 65.8MB in the beginning and 70.1MB in the end (delta: -4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 08:09:50,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.82ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 68.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 08:09:50,445 INFO L158 Benchmark]: Boogie Preprocessor took 17.59ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 67.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 08:09:50,446 INFO L158 Benchmark]: RCFGBuilder took 266.90ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 56.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 08:09:50,446 INFO L158 Benchmark]: TraceAbstraction took 8744.96ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 55.5MB in the beginning and 102.6MB in the end (delta: -47.1MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2021-12-17 08:09:50,446 INFO L158 Benchmark]: Witness Printer took 56.69ms. Allocated memory is still 163.6MB. Free memory was 102.6MB in the beginning and 99.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 08:09:50,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory was 50.8MB in the beginning and 50.8MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.55ms. Allocated memory is still 94.4MB. Free memory was 65.8MB in the beginning and 70.1MB in the end (delta: -4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.82ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 68.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.59ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 67.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.90ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 56.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8744.96ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 55.5MB in the beginning and 102.6MB in the end (delta: -47.1MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Witness Printer took 56.69ms. Allocated memory is still 163.6MB. Free memory was 102.6MB in the beginning and 99.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 50]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 6, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 231 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 8 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1026 IncrementalHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 61 mSDtfsCounter, 1026 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=5, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 23 NumberOfFragments, 173 HoareAnnotationTreeSize, 5 FomulaSimplifications, 198 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 415 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 260 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 351 ConstructedInterpolants, 1 QuantifiedInterpolants, 2379 SizeOfPredicates, 43 NumberOfNonLiveVariables, 1038 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 15 InterpolantComputations, 2 PerfectInterpolantSequences, 390/755 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant [2021-12-17 08:09:50,456 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,456 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,457 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,457 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((pa == #memory_$Pointer$[cont][cont] + 4 && 0 == cont) && 7 <= j) && pa == #memory_$Pointer$[cont][cont]) && array == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((((0 == cont && 0 == array) && j == 3) || ((0 == cont && 0 == array) && j == 4)) || ((j == 0 && 0 == cont) && 0 == array)) || ((j == 1 && 0 == cont) && 0 == array)) || ((0 == cont && 7 <= j) && array == 0)) || ((0 == cont && 0 == array) && j == 5)) || ((0 == cont && 0 == array) && j == 2)) || ((0 == cont && 0 == array) && j == 6) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2021-12-17 08:09:50,459 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,459 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,459 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,459 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,460 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-17 08:09:50,460 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,460 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-17 08:09:50,461 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] <= i && pa == #memory_$Pointer$[cont][cont] + 4) && 0 == cont) && 7 <= j) && pa == #memory_$Pointer$[cont][cont]) && 1 <= \result) && array == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1 RESULT: Ultimate proved your program to be correct! [2021-12-17 08:09:50,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE