./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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/uthash-2.0.2/uthash_JEN_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 816e37c4bcf3aac0429d508c13e4e6eeab848e29c3869a32879e05a2b79a73a3 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 21:42:03,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 21:42:03,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 21:42:03,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 21:42:03,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 21:42:03,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 21:42:03,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 21:42:03,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 21:42:03,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 21:42:03,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 21:42:03,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 21:42:03,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 21:42:03,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 21:42:03,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 21:42:03,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 21:42:03,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 21:42:03,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 21:42:03,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 21:42:03,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 21:42:03,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 21:42:03,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 21:42:03,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 21:42:03,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 21:42:03,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 21:42:03,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 21:42:03,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 21:42:03,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 21:42:03,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 21:42:03,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 21:42:03,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 21:42:03,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 21:42:03,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 21:42:03,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 21:42:03,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 21:42:03,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 21:42:03,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 21:42:03,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 21:42:03,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 21:42:03,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 21:42:03,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 21:42:03,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 21:42:03,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 21:42:03,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 21:42:03,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 21:42:03,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 21:42:03,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 21:42:03,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 21:42:03,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 21:42:03,400 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 21:42:03,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 21:42:03,400 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 21:42:03,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 21:42:03,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 21:42:03,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 21:42:03,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 21:42:03,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 21:42:03,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 21:42:03,402 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 21:42:03,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 21:42:03,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 21:42:03,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 21:42:03,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 21:42:03,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 21:42:03,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 21:42:03,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 21:42:03,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 21:42:03,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 21:42:03,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 21:42:03,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 21:42:03,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 21:42:03,413 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 21:42:03,414 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 21:42:03,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 21:42:03,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 21:42:03,414 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 816e37c4bcf3aac0429d508c13e4e6eeab848e29c3869a32879e05a2b79a73a3 [2021-11-07 21:42:03,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 21:42:03,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 21:42:03,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 21:42:03,611 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 21:42:03,614 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 21:42:03,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i [2021-11-07 21:42:03,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fdc161b7/cec0c54b7a9c41ebb093548c6d72b34f/FLAGd4b83b252 [2021-11-07 21:42:04,169 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 21:42:04,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i [2021-11-07 21:42:04,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fdc161b7/cec0c54b7a9c41ebb093548c6d72b34f/FLAGd4b83b252 [2021-11-07 21:42:04,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fdc161b7/cec0c54b7a9c41ebb093548c6d72b34f [2021-11-07 21:42:04,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 21:42:04,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 21:42:04,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 21:42:04,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 21:42:04,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 21:42:04,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:42:04" (1/1) ... [2021-11-07 21:42:04,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46962ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:04, skipping insertion in model container [2021-11-07 21:42:04,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:42:04" (1/1) ... [2021-11-07 21:42:04,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 21:42:04,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 21:42:05,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i[37019,37032] [2021-11-07 21:42:05,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i[47352,47365] [2021-11-07 21:42:05,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 21:42:05,219 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 21:42:05,255 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i[37019,37032] [2021-11-07 21:42:05,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i[47352,47365] [2021-11-07 21:42:05,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 21:42:05,353 INFO L208 MainTranslator]: Completed translation [2021-11-07 21:42:05,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05 WrapperNode [2021-11-07 21:42:05,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 21:42:05,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 21:42:05,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 21:42:05,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 21:42:05,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 21:42:05,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 21:42:05,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 21:42:05,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 21:42:05,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 21:42:05,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 21:42:05,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 21:42:05,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 21:42:05,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (1/1) ... [2021-11-07 21:42:05,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 21:42:05,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:05,560 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) [2021-11-07 21:42:05,610 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 [2021-11-07 21:42:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 21:42:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 21:42:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 21:42:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 21:42:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 21:42:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 21:42:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 21:42:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 21:42:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 21:42:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 21:42:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 21:42:06,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 21:42:06,666 INFO L299 CfgBuilder]: Removed 85 assume(true) statements. [2021-11-07 21:42:06,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:42:06 BoogieIcfgContainer [2021-11-07 21:42:06,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 21:42:06,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 21:42:06,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 21:42:06,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 21:42:06,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:42:04" (1/3) ... [2021-11-07 21:42:06,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51efee56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:42:06, skipping insertion in model container [2021-11-07 21:42:06,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:05" (2/3) ... [2021-11-07 21:42:06,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51efee56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:42:06, skipping insertion in model container [2021-11-07 21:42:06,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:42:06" (3/3) ... [2021-11-07 21:42:06,674 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-2.i [2021-11-07 21:42:06,686 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 21:42:06,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 21:42:06,737 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 21:42:06,744 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 [2021-11-07 21:42:06,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 21:42:06,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 199 states have (on average 1.7185929648241205) internal successors, (342), 205 states have internal predecessors, (342), 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) [2021-11-07 21:42:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 21:42:06,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:06,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:06,781 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:06,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:06,785 INFO L85 PathProgramCache]: Analyzing trace with hash 239231399, now seen corresponding path program 1 times [2021-11-07 21:42:06,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:06,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471319849] [2021-11-07 21:42:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:06,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:06,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:06,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:06,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471319849] [2021-11-07 21:42:06,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471319849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:06,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:06,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 21:42:06,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250795358] [2021-11-07 21:42:06,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:06,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 21:42:06,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 21:42:06,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 21:42:06,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 21:42:06,992 INFO L87 Difference]: Start difference. First operand has 206 states, 199 states have (on average 1.7185929648241205) internal successors, (342), 205 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-07 21:42:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:07,027 INFO L93 Difference]: Finished difference Result 410 states and 682 transitions. [2021-11-07 21:42:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 21:42:07,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-07 21:42:07,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:07,037 INFO L225 Difference]: With dead ends: 410 [2021-11-07 21:42:07,038 INFO L226 Difference]: Without dead ends: 173 [2021-11-07 21:42:07,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 21:42:07,043 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:07,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 4.70ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 21:42:07,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-07 21:42:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-07 21:42:07,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 167 states have (on average 1.347305389221557) internal successors, (225), 172 states have internal predecessors, (225), 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) [2021-11-07 21:42:07,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2021-11-07 21:42:07,098 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 9 [2021-11-07 21:42:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:07,099 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2021-11-07 21:42:07,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-07 21:42:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2021-11-07 21:42:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 21:42:07,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:07,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:07,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 21:42:07,101 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:07,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:07,102 INFO L85 PathProgramCache]: Analyzing trace with hash 627334177, now seen corresponding path program 1 times [2021-11-07 21:42:07,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:07,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529132826] [2021-11-07 21:42:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:07,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:07,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:07,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529132826] [2021-11-07 21:42:07,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529132826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:07,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:07,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 21:42:07,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783694067] [2021-11-07 21:42:07,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:07,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 21:42:07,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 21:42:07,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 21:42:07,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 21:42:07,218 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-07 21:42:07,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:07,523 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2021-11-07 21:42:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:42:07,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2021-11-07 21:42:07,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:07,525 INFO L225 Difference]: With dead ends: 377 [2021-11-07 21:42:07,526 INFO L226 Difference]: Without dead ends: 294 [2021-11-07 21:42:07,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 21:42:07,527 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 153 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 223.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.38ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 274.91ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:07,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 534 Invalid, 142 Unknown, 0 Unchecked, 4.38ms Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 274.91ms Time] [2021-11-07 21:42:07,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-07 21:42:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 175. [2021-11-07 21:42:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 169 states have (on average 1.3431952662721893) internal successors, (227), 174 states have internal predecessors, (227), 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) [2021-11-07 21:42:07,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2021-11-07 21:42:07,553 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 44 [2021-11-07 21:42:07,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:07,554 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2021-11-07 21:42:07,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-07 21:42:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2021-11-07 21:42:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 21:42:07,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:07,559 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:07,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 21:42:07,560 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:07,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:07,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1103505073, now seen corresponding path program 1 times [2021-11-07 21:42:07,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:07,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143585485] [2021-11-07 21:42:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:07,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:07,601 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 21:42:07,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937885784] [2021-11-07 21:42:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:07,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:07,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:07,619 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) [2021-11-07 21:42:07,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 21:42:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:07,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:07,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:08,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:08,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 21:42:08,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:08,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143585485] [2021-11-07 21:42:08,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 21:42:08,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937885784] [2021-11-07 21:42:08,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937885784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:08,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:08,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 21:42:08,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303206111] [2021-11-07 21:42:08,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:08,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 21:42:08,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 21:42:08,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 21:42:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 21:42:08,084 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-07 21:42:08,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:08,136 INFO L93 Difference]: Finished difference Result 367 states and 481 transitions. [2021-11-07 21:42:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 21:42:08,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2021-11-07 21:42:08,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:08,137 INFO L225 Difference]: With dead ends: 367 [2021-11-07 21:42:08,138 INFO L226 Difference]: Without dead ends: 196 [2021-11-07 21:42:08,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 21:42:08,139 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 9 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.08ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:08,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 395 Invalid, 72 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 45.08ms Time] [2021-11-07 21:42:08,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-07 21:42:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2021-11-07 21:42:08,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.306878306878307) internal successors, (247), 194 states have internal predecessors, (247), 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) [2021-11-07 21:42:08,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 247 transitions. [2021-11-07 21:42:08,149 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 247 transitions. Word has length 96 [2021-11-07 21:42:08,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:08,149 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 247 transitions. [2021-11-07 21:42:08,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-07 21:42:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 247 transitions. [2021-11-07 21:42:08,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 21:42:08,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:08,152 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:08,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:08,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:08,377 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:08,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:08,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1343744819, now seen corresponding path program 1 times [2021-11-07 21:42:08,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:08,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549451003] [2021-11-07 21:42:08,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:08,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:08,393 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 21:42:08,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277399324] [2021-11-07 21:42:08,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:08,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:08,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:08,395 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) [2021-11-07 21:42:08,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 21:42:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:08,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:08,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 21:42:08,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 21:42:08,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:08,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549451003] [2021-11-07 21:42:08,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 21:42:08,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277399324] [2021-11-07 21:42:08,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277399324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:08,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:08,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 21:42:08,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190563860] [2021-11-07 21:42:08,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:08,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 21:42:08,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 21:42:08,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 21:42:08,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 21:42:08,733 INFO L87 Difference]: Start difference. First operand 195 states and 247 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-07 21:42:08,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:08,798 INFO L93 Difference]: Finished difference Result 298 states and 384 transitions. [2021-11-07 21:42:08,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 21:42:08,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 96 [2021-11-07 21:42:08,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:08,801 INFO L225 Difference]: With dead ends: 298 [2021-11-07 21:42:08,801 INFO L226 Difference]: Without dead ends: 216 [2021-11-07 21:42:08,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 21:42:08,804 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 9 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.94ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.78ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:08,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 395 Invalid, 72 Unknown, 0 Unchecked, 0.94ms Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 58.78ms Time] [2021-11-07 21:42:08,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-07 21:42:08,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2021-11-07 21:42:08,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.277511961722488) internal successors, (267), 214 states have internal predecessors, (267), 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) [2021-11-07 21:42:08,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 267 transitions. [2021-11-07 21:42:08,821 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 267 transitions. Word has length 96 [2021-11-07 21:42:08,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:08,822 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 267 transitions. [2021-11-07 21:42:08,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-07 21:42:08,823 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 267 transitions. [2021-11-07 21:42:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 21:42:08,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:08,828 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:08,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:09,043 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,SelfDestructingSolverStorable3 [2021-11-07 21:42:09,044 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:09,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:09,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1663949871, now seen corresponding path program 1 times [2021-11-07 21:42:09,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:09,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941520291] [2021-11-07 21:42:09,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:09,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:09,058 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 21:42:09,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100488834] [2021-11-07 21:42:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:09,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:09,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:09,060 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) [2021-11-07 21:42:09,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 21:42:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:09,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:09,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:09,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 21:42:09,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:09,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941520291] [2021-11-07 21:42:09,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 21:42:09,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100488834] [2021-11-07 21:42:09,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100488834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:09,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:09,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 21:42:09,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990071485] [2021-11-07 21:42:09,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:09,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 21:42:09,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 21:42:09,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 21:42:09,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 21:42:09,387 INFO L87 Difference]: Start difference. First operand 215 states and 267 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2021-11-07 21:42:09,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:09,445 INFO L93 Difference]: Finished difference Result 418 states and 522 transitions. [2021-11-07 21:42:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:42:09,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 96 [2021-11-07 21:42:09,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:09,447 INFO L225 Difference]: With dead ends: 418 [2021-11-07 21:42:09,447 INFO L226 Difference]: Without dead ends: 207 [2021-11-07 21:42:09,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 21:42:09,449 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 213 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.67ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.72ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:09,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 406 Invalid, 66 Unknown, 0 Unchecked, 1.67ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 45.72ms Time] [2021-11-07 21:42:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-07 21:42:09,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 201. [2021-11-07 21:42:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.2615384615384615) internal successors, (246), 200 states have internal predecessors, (246), 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) [2021-11-07 21:42:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2021-11-07 21:42:09,461 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 96 [2021-11-07 21:42:09,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:09,461 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2021-11-07 21:42:09,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2021-11-07 21:42:09,461 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2021-11-07 21:42:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 21:42:09,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:09,470 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:09,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:09,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:09,683 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash 569918303, now seen corresponding path program 1 times [2021-11-07 21:42:09,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:09,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526447373] [2021-11-07 21:42:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:09,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:09,697 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 21:42:09,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704580298] [2021-11-07 21:42:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:09,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:09,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:09,698 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) [2021-11-07 21:42:09,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 21:42:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:09,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:09,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:09,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 21:42:09,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 21:42:09,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:09,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526447373] [2021-11-07 21:42:09,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 21:42:09,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704580298] [2021-11-07 21:42:09,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704580298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:09,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:09,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 21:42:09,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696237434] [2021-11-07 21:42:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:09,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 21:42:09,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 21:42:09,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 21:42:09,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 21:42:09,986 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-11-07 21:42:10,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:10,045 INFO L93 Difference]: Finished difference Result 295 states and 364 transitions. [2021-11-07 21:42:10,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:42:10,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 96 [2021-11-07 21:42:10,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:10,047 INFO L225 Difference]: With dead ends: 295 [2021-11-07 21:42:10,047 INFO L226 Difference]: Without dead ends: 193 [2021-11-07 21:42:10,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 21:42:10,048 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 96 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.45ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.45ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:10,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 496 Invalid, 66 Unknown, 0 Unchecked, 1.45ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 47.45ms Time] [2021-11-07 21:42:10,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-07 21:42:10,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2021-11-07 21:42:10,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 181 states have (on average 1.2430939226519337) internal successors, (225), 186 states have internal predecessors, (225), 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) [2021-11-07 21:42:10,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2021-11-07 21:42:10,053 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 96 [2021-11-07 21:42:10,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:10,053 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2021-11-07 21:42:10,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-11-07 21:42:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2021-11-07 21:42:10,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 21:42:10,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:10,054 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:10,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:10,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:10,267 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:10,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:10,268 INFO L85 PathProgramCache]: Analyzing trace with hash -312930543, now seen corresponding path program 1 times [2021-11-07 21:42:10,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:10,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772576047] [2021-11-07 21:42:10,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:10,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:10,281 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 21:42:10,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460292700] [2021-11-07 21:42:10,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:10,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:10,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:10,282 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) [2021-11-07 21:42:10,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 21:42:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:10,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 21:42:10,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:10,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 21:42:10,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:10,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772576047] [2021-11-07 21:42:10,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 21:42:10,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460292700] [2021-11-07 21:42:10,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460292700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:10,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:10,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 21:42:10,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716904028] [2021-11-07 21:42:10,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:10,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 21:42:10,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 21:42:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 21:42:10,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 21:42:10,700 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-07 21:42:10,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:10,752 INFO L93 Difference]: Finished difference Result 486 states and 579 transitions. [2021-11-07 21:42:10,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 21:42:10,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2021-11-07 21:42:10,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:10,754 INFO L225 Difference]: With dead ends: 486 [2021-11-07 21:42:10,754 INFO L226 Difference]: Without dead ends: 303 [2021-11-07 21:42:10,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 21:42:10,755 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 94 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.19ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:10,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 441 Invalid, 14 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 44.19ms Time] [2021-11-07 21:42:10,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-07 21:42:10,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 291. [2021-11-07 21:42:10,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 285 states have (on average 1.2280701754385965) internal successors, (350), 290 states have internal predecessors, (350), 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) [2021-11-07 21:42:10,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 350 transitions. [2021-11-07 21:42:10,765 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 350 transitions. Word has length 96 [2021-11-07 21:42:10,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:10,765 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 350 transitions. [2021-11-07 21:42:10,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-07 21:42:10,766 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 350 transitions. [2021-11-07 21:42:10,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-07 21:42:10,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:10,767 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:10,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:10,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:10,979 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:10,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:10,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1090926304, now seen corresponding path program 1 times [2021-11-07 21:42:10,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:10,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951464057] [2021-11-07 21:42:10,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:10,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:10,992 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 21:42:10,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977662323] [2021-11-07 21:42:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:10,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:10,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:10,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 21:42:10,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 21:42:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:11,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 21:42:11,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:11,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 21:42:11,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:11,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951464057] [2021-11-07 21:42:11,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 21:42:11,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977662323] [2021-11-07 21:42:11,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977662323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:11,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:11,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 21:42:11,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181092947] [2021-11-07 21:42:11,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:11,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 21:42:11,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 21:42:11,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 21:42:11,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 21:42:11,317 INFO L87 Difference]: Start difference. First operand 291 states and 350 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2021-11-07 21:42:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:11,719 INFO L93 Difference]: Finished difference Result 474 states and 571 transitions. [2021-11-07 21:42:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:42:11,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2021-11-07 21:42:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:11,722 INFO L225 Difference]: With dead ends: 474 [2021-11-07 21:42:11,722 INFO L226 Difference]: Without dead ends: 231 [2021-11-07 21:42:11,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.62ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 21:42:11,723 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 310 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 364.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.03ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 390.10ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:11,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 266 Invalid, 49 Unknown, 0 Unchecked, 1.03ms Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 390.10ms Time] [2021-11-07 21:42:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-07 21:42:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-11-07 21:42:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 225 states have (on average 1.208888888888889) internal successors, (272), 230 states have internal predecessors, (272), 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) [2021-11-07 21:42:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 272 transitions. [2021-11-07 21:42:11,730 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 272 transitions. Word has length 103 [2021-11-07 21:42:11,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:11,731 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 272 transitions. [2021-11-07 21:42:11,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2021-11-07 21:42:11,732 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 272 transitions. [2021-11-07 21:42:11,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 21:42:11,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:11,733 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:11,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:11,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:11,943 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:11,944 INFO L85 PathProgramCache]: Analyzing trace with hash 541560378, now seen corresponding path program 1 times [2021-11-07 21:42:11,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 21:42:11,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732324745] [2021-11-07 21:42:11,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:11,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 21:42:11,955 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 21:42:11,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563548738] [2021-11-07 21:42:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:11,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:11,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:11,957 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 21:42:11,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 21:42:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:12,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-07 21:42:12,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:12,163 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 [2021-11-07 21:42:12,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 21:42:12,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:12,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-07 21:42:12,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:12,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:12,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:12,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2021-11-07 21:42:13,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 57 [2021-11-07 21:42:13,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 44 [2021-11-07 21:42:13,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 66 [2021-11-07 21:42:13,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 47 [2021-11-07 21:42:13,205 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 13 treesize of output 9 [2021-11-07 21:42:13,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 47 [2021-11-07 21:42:13,237 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 29 treesize of output 25 [2021-11-07 21:42:13,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:13,254 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-07 21:42:13,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2021-11-07 21:42:14,500 INFO L354 Elim1Store]: treesize reduction 364, result has 11.9 percent of original size [2021-11-07 21:42:14,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2845 treesize of output 2294 [2021-11-07 21:42:14,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:14,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:14,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:14,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 21:42:18,410 INFO L354 Elim1Store]: treesize reduction 7776, result has 3.0 percent of original size [2021-11-07 21:42:18,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 3314 treesize of output 1805 [2021-11-07 21:42:18,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 21:42:18,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732324745] [2021-11-07 21:42:18,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 21:42:18,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563548738] [2021-11-07 21:42:18,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-07 21:42:18,467 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:18,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 21:42:18,468 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-07 21:42:18,468 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 21:42:18,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-07 21:42:18,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-07 21:42:18,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2021-11-07 21:42:18,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2021-11-07 21:42:18,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-11-07 21:42:18,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-07 21:42:18,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-07 21:42:18,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 21:42:18,690 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:18,693 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 21:42:18,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:42:18 BoogieIcfgContainer [2021-11-07 21:42:18,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 21:42:18,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 21:42:18,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 21:42:18,718 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 21:42:18,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:42:06" (3/4) ... [2021-11-07 21:42:18,720 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 21:42:18,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 21:42:18,720 INFO L158 Benchmark]: Toolchain (without parser) took 14031.63ms. Allocated memory was 111.1MB in the beginning and 180.4MB in the end (delta: 69.2MB). Free memory was 80.3MB in the beginning and 93.1MB in the end (delta: -12.8MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2021-11-07 21:42:18,721 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 46.1MB in the beginning and 46.1MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 21:42:18,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 664.16ms. Allocated memory is still 111.1MB. Free memory was 80.3MB in the beginning and 62.4MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-07 21:42:18,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.86ms. Allocated memory is still 111.1MB. Free memory was 62.4MB in the beginning and 55.6MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-07 21:42:18,721 INFO L158 Benchmark]: Boogie Preprocessor took 78.04ms. Allocated memory is still 111.1MB. Free memory was 55.6MB in the beginning and 48.5MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-07 21:42:18,722 INFO L158 Benchmark]: RCFGBuilder took 1151.43ms. Allocated memory is still 111.1MB. Free memory was 48.5MB in the beginning and 67.5MB in the end (delta: -19.0MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-11-07 21:42:18,722 INFO L158 Benchmark]: TraceAbstraction took 12048.34ms. Allocated memory was 111.1MB in the beginning and 180.4MB in the end (delta: 69.2MB). Free memory was 66.8MB in the beginning and 93.1MB in the end (delta: -26.2MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. [2021-11-07 21:42:18,722 INFO L158 Benchmark]: Witness Printer took 2.30ms. Allocated memory is still 180.4MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 21:42:18,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 46.1MB in the beginning and 46.1MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 664.16ms. Allocated memory is still 111.1MB. Free memory was 80.3MB in the beginning and 62.4MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.86ms. Allocated memory is still 111.1MB. Free memory was 62.4MB in the beginning and 55.6MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.04ms. Allocated memory is still 111.1MB. Free memory was 55.6MB in the beginning and 48.5MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1151.43ms. Allocated memory is still 111.1MB. Free memory was 48.5MB in the beginning and 67.5MB in the end (delta: -19.0MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12048.34ms. Allocated memory was 111.1MB in the beginning and 180.4MB in the end (delta: 69.2MB). Free memory was 66.8MB in the beginning and 93.1MB in the end (delta: -26.2MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. * Witness Printer took 2.30ms. Allocated memory is still 180.4MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 828]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of bitwiseXor at line 824, overapproximation of bitwiseAnd at line 824. Possible FailurePath: [L785] int count_int_int = 0; [L812] int i; [L813] example_user_t *user, *tmp, *users=((void *)0); [L814] i=0 [L814] EXPR \read(i) [L814] COND TRUE i<10 [L815] user = (example_user_t*)malloc(sizeof(example_user_t)) [L816] COND FALSE !(user == ((void *)0)) [L819] EXPR \read(i) [L819] user->id = i [L820] EXPR \read(i) [L820] EXPR \read(i) [L820] user->cookie = i*i [L821] unsigned _ha_hashv; [L821] unsigned _hj_i,_hj_j,_hj_k; [L821] unsigned const char *_hj_key=(unsigned const char*)(&((user)->id)); [L821] _ha_hashv = 0xfeedbeefu [L821] EXPR _hj_j = 0x9e3779b9u [L821] _hj_i = _hj_j = 0x9e3779b9u [L821] _hj_k = (unsigned)(sizeof(int)) [L821] COND FALSE !(_hj_k >= 12U) [L821] _ha_hashv += (unsigned)(sizeof(int)) [L821] case 11: [L821] case 10: [L821] case 9: [L821] case 8: [L821] case 7: [L821] case 6: [L821] case 5: [L821] case 4: [L821] EXPR _hj_key[3] [L821] _hj_i += ( (unsigned)_hj_key[3] << 24 ) [L821] case 3: [L821] EXPR _hj_key[2] [L821] _hj_i += ( (unsigned)_hj_key[2] << 16 ) [L821] case 2: [L821] EXPR _hj_key[1] [L821] _hj_i += ( (unsigned)_hj_key[1] << 8 ) [L821] case 1: [L821] EXPR _hj_key[0] [L821] _hj_i += _hj_key[0] [L821] _hj_i -= _hj_j [L821] _hj_i -= _ha_hashv [L821] _hj_i ^= ( _ha_hashv >> 13 ) [L821] _hj_j -= _ha_hashv [L821] _hj_j -= _hj_i [L821] _hj_j ^= ( _hj_i << 8 ) [L821] _ha_hashv -= _hj_i [L821] _ha_hashv -= _hj_j [L821] _ha_hashv ^= ( _hj_j >> 13 ) [L821] _hj_i -= _hj_j [L821] _hj_i -= _ha_hashv [L821] _hj_i ^= ( _ha_hashv >> 12 ) [L821] _hj_j -= _ha_hashv [L821] _hj_j -= _hj_i [L821] _hj_j ^= ( _hj_i << 16 ) [L821] _ha_hashv -= _hj_i [L821] _ha_hashv -= _hj_j [L821] _ha_hashv ^= ( _hj_j >> 5 ) [L821] _hj_i -= _hj_j [L821] _hj_i -= _ha_hashv [L821] _hj_i ^= ( _ha_hashv >> 3 ) [L821] _hj_j -= _ha_hashv [L821] _hj_j -= _hj_i [L821] _hj_j ^= ( _hj_i << 10 ) [L821] _ha_hashv -= _hj_i [L821] _ha_hashv -= _hj_j [L821] _ha_hashv ^= ( _hj_j >> 15 ) [L821] (user)->hh.hashv = (_ha_hashv) [L821] (user)->hh.key = (char*) (&((user)->id)) [L821] (user)->hh.keylen = (unsigned) (sizeof(int)) [L821] COND TRUE !(users) [L821] (user)->hh.next = ((void *)0) [L821] (user)->hh.prev = ((void *)0) [L821] (user)->hh.tbl = (UT_hash_table*)malloc(sizeof(UT_hash_table)) [L821] EXPR (user)->hh.tbl [L821] COND FALSE !(!(user)->hh.tbl) [L821] (user)->hh.tbl [L821] EXPR (user)->hh.tbl [L821] (user)->hh.tbl->tail = &((user)->hh) [L821] EXPR (user)->hh.tbl [L821] (user)->hh.tbl->num_buckets = 32U [L821] EXPR (user)->hh.tbl [L821] (user)->hh.tbl->log2_num_buckets = 5U [L821] EXPR (user)->hh.tbl [L821] (user)->hh.tbl->hho = (char*)(&(user)->hh) - (char*)(user) [L821] EXPR (user)->hh.tbl [L821] (user)->hh.tbl->buckets = (UT_hash_bucket*)malloc(32U * sizeof(struct UT_hash_bucket)) [L821] EXPR (user)->hh.tbl [L821] (user)->hh.tbl->signature = 0xa0111fe1u [L821] EXPR (user)->hh.tbl [L821] EXPR (user)->hh.tbl->buckets [L821] COND FALSE !(!(user)->hh.tbl->buckets) [L821] EXPR (user)->hh.tbl [L821] (user)->hh.tbl->buckets [L821] (users) = (user) [L821] unsigned _ha_bkt; [L821] EXPR (users)->hh.tbl [L821] EXPR (users)->hh.tbl->num_items [L821] (users)->hh.tbl->num_items++ [L821] EXPR (users)->hh.tbl [L821] EXPR (users)->hh.tbl->num_buckets [L821] _ha_bkt = ((_ha_hashv) & (((users)->hh.tbl->num_buckets) - 1U)) [L821] EXPR (users)->hh.tbl [L821] EXPR (users)->hh.tbl->buckets [L821] UT_hash_bucket *_ha_head = &((users)->hh.tbl->buckets[_ha_bkt]); [L821] EXPR _ha_head->count [L821] _ha_head->count++ [L821] EXPR _ha_head->hh_head [L821] (&(user)->hh)->hh_next = _ha_head->hh_head [L821] (&(user)->hh)->hh_prev = ((void *)0) [L821] EXPR _ha_head->hh_head [L821] COND FALSE !(_ha_head->hh_head != ((void *)0)) [L821] _ha_head->hh_head = (&(user)->hh) [L821] EXPR _ha_head->count [L821] EXPR _ha_head->expand_mult [L821] (_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand [L821] EXPR (&(user)->hh)->tbl [L821] EXPR (&(user)->hh)->tbl->noexpand [L821] (_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand [L821] COND FALSE !((_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand) [L814] EXPR \read(i) [L814] i++ [L814] EXPR \read(i) [L814] COND FALSE !(i<10) [L823] i=0 [L823] EXPR \read(i) [L823] COND TRUE i<10 [L824] unsigned _hf_hashv; [L824] unsigned _hj_i,_hj_j,_hj_k; [L824] unsigned const char *_hj_key=(unsigned const char*)(&i); [L824] _hf_hashv = 0xfeedbeefu [L824] EXPR _hj_j = 0x9e3779b9u [L824] _hj_i = _hj_j = 0x9e3779b9u [L824] _hj_k = (unsigned)(sizeof(int)) [L824] COND FALSE !(_hj_k >= 12U) [L824] _hf_hashv += (unsigned)(sizeof(int)) [L824] case 11: [L824] case 10: [L824] case 9: [L824] case 8: [L824] case 7: [L824] case 6: [L824] case 5: [L824] case 4: [L824] EXPR _hj_key[3] [L824] _hj_i += ( (unsigned)_hj_key[3] << 24 ) [L824] case 3: [L824] EXPR _hj_key[2] [L824] _hj_i += ( (unsigned)_hj_key[2] << 16 ) [L824] case 2: [L824] EXPR _hj_key[1] [L824] _hj_i += ( (unsigned)_hj_key[1] << 8 ) [L824] case 1: [L824] EXPR _hj_key[0] [L824] _hj_i += _hj_key[0] [L824] _hj_i -= _hj_j [L824] _hj_i -= _hf_hashv [L824] _hj_i ^= ( _hf_hashv >> 13 ) [L824] _hj_j -= _hf_hashv [L824] _hj_j -= _hj_i [L824] _hj_j ^= ( _hj_i << 8 ) [L824] _hf_hashv -= _hj_i [L824] _hf_hashv -= _hj_j [L824] _hf_hashv ^= ( _hj_j >> 13 ) [L824] _hj_i -= _hj_j [L824] _hj_i -= _hf_hashv [L824] _hj_i ^= ( _hf_hashv >> 12 ) [L824] _hj_j -= _hf_hashv [L824] _hj_j -= _hj_i [L824] _hj_j ^= ( _hj_i << 16 ) [L824] _hf_hashv -= _hj_i [L824] _hf_hashv -= _hj_j [L824] _hf_hashv ^= ( _hj_j >> 5 ) [L824] _hj_i -= _hj_j [L824] _hj_i -= _hf_hashv [L824] _hj_i ^= ( _hf_hashv >> 3 ) [L824] _hj_j -= _hf_hashv [L824] _hj_j -= _hj_i [L824] _hj_j ^= ( _hj_i << 10 ) [L824] _hf_hashv -= _hj_i [L824] _hf_hashv -= _hj_j [L824] _hf_hashv ^= ( _hj_j >> 15 ) [L824] (tmp) = ((void *)0) [L824] COND TRUE \read(*users) [L824] unsigned _hf_bkt; [L824] EXPR (users)->hh.tbl [L824] EXPR (users)->hh.tbl->num_buckets [L824] _hf_bkt = ((_hf_hashv) & (((users)->hh.tbl->num_buckets) - 1U)) [L824] EXPR (users)->hh.tbl [L824] EXPR (users)->hh.tbl->buckets [L824] EXPR ((users)->hh.tbl->buckets[ _hf_bkt ]).hh_head [L824] COND FALSE !(((users)->hh.tbl->buckets[ _hf_bkt ]).hh_head != ((void *)0)) [L824] (tmp) = ((void *)0) [L824] COND FALSE !((tmp) != ((void *)0)) [L825] COND FALSE !(tmp != ((void *)0)) [L828] reach_error() - UnprovableResult [Line: 782]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 11956.24ms, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 45.29ms, AutomataDifference: 1124.76ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 13.99ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 884 SdHoareTripleChecker+Valid, 906.23ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 884 mSDsluCounter, 3202 SdHoareTripleChecker+Invalid, 772.70ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1464 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 370 IncrementalHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 1738 mSDtfsCounter, 370 mSolverCounterSat, 16.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.72ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=7, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 114.37ms AutomataMinimizationTime, 8 MinimizatonAttempts, 145 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 321.92ms SsaConstructionTime, 370.16ms SatisfiabilityAnalysisTime, 7737.20ms InterpolantComputationTime, 746 NumberOfCodeBlocks, 746 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 628 ConstructedInterpolants, 0 QuantifiedInterpolants, 1153 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2038 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 12/12 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 21:42:18,750 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/uthash-2.0.2/uthash_JEN_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 816e37c4bcf3aac0429d508c13e4e6eeab848e29c3869a32879e05a2b79a73a3 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 21:42:20,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 21:42:20,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 21:42:20,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 21:42:20,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 21:42:20,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 21:42:20,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 21:42:20,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 21:42:20,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 21:42:20,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 21:42:20,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 21:42:20,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 21:42:20,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 21:42:20,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 21:42:20,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 21:42:20,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 21:42:20,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 21:42:20,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 21:42:20,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 21:42:20,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 21:42:20,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 21:42:20,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 21:42:20,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 21:42:20,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 21:42:20,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 21:42:20,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 21:42:20,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 21:42:20,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 21:42:20,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 21:42:20,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 21:42:20,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 21:42:20,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 21:42:20,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 21:42:20,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 21:42:20,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 21:42:20,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 21:42:20,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 21:42:20,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 21:42:20,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 21:42:20,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 21:42:20,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 21:42:20,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-07 21:42:20,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 21:42:20,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 21:42:20,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 21:42:20,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 21:42:20,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 21:42:20,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 21:42:20,749 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 21:42:20,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 21:42:20,749 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 21:42:20,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 21:42:20,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 21:42:20,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 21:42:20,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 21:42:20,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 21:42:20,751 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 21:42:20,751 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 21:42:20,751 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 21:42:20,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 21:42:20,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 21:42:20,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 21:42:20,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 21:42:20,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 21:42:20,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 21:42:20,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 21:42:20,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 21:42:20,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 21:42:20,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 21:42:20,753 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 21:42:20,754 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 21:42:20,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 21:42:20,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 21:42:20,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 21:42:20,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 21:42:20,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 21:42:20,755 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 816e37c4bcf3aac0429d508c13e4e6eeab848e29c3869a32879e05a2b79a73a3 [2021-11-07 21:42:21,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 21:42:21,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 21:42:21,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 21:42:21,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 21:42:21,085 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 21:42:21,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i [2021-11-07 21:42:21,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b69d2574/619d80b5de3046fbb18335c8c72084f6/FLAGcc724fb4d [2021-11-07 21:42:21,664 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 21:42:21,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i [2021-11-07 21:42:21,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b69d2574/619d80b5de3046fbb18335c8c72084f6/FLAGcc724fb4d [2021-11-07 21:42:22,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b69d2574/619d80b5de3046fbb18335c8c72084f6 [2021-11-07 21:42:22,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 21:42:22,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 21:42:22,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 21:42:22,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 21:42:22,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 21:42:22,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:22,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e7bc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22, skipping insertion in model container [2021-11-07 21:42:22,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:22,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 21:42:22,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 21:42:22,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i[37019,37032] [2021-11-07 21:42:22,754 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i[47352,47365] [2021-11-07 21:42:22,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 21:42:22,792 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 21:42:22,827 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i[37019,37032] [2021-11-07 21:42:22,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i[47352,47365] [2021-11-07 21:42:22,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 21:42:22,959 INFO L208 MainTranslator]: Completed translation [2021-11-07 21:42:22,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22 WrapperNode [2021-11-07 21:42:22,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 21:42:22,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 21:42:22,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 21:42:22,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 21:42:22,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 21:42:23,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 21:42:23,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 21:42:23,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 21:42:23,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 21:42:23,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 21:42:23,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 21:42:23,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 21:42:23,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (1/1) ... [2021-11-07 21:42:23,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 21:42:23,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 21:42:23,212 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) [2021-11-07 21:42:23,225 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 [2021-11-07 21:42:23,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 21:42:23,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 21:42:23,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 21:42:23,252 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 21:42:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 21:42:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 21:42:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 21:42:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 21:42:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 21:42:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 21:42:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 21:42:23,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 21:42:26,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 21:42:26,350 INFO L299 CfgBuilder]: Removed 85 assume(true) statements. [2021-11-07 21:42:26,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:42:26 BoogieIcfgContainer [2021-11-07 21:42:26,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 21:42:26,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 21:42:26,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 21:42:26,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 21:42:26,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:42:22" (1/3) ... [2021-11-07 21:42:26,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64cef442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:42:26, skipping insertion in model container [2021-11-07 21:42:26,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:42:22" (2/3) ... [2021-11-07 21:42:26,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64cef442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:42:26, skipping insertion in model container [2021-11-07 21:42:26,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:42:26" (3/3) ... [2021-11-07 21:42:26,356 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-2.i [2021-11-07 21:42:26,360 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 21:42:26,360 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 21:42:26,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 21:42:26,423 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 [2021-11-07 21:42:26,423 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 21:42:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 199 states have (on average 1.7185929648241205) internal successors, (342), 205 states have internal predecessors, (342), 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) [2021-11-07 21:42:26,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 21:42:26,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:26,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:26,442 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:26,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash 239231399, now seen corresponding path program 1 times [2021-11-07 21:42:26,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:26,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093728873] [2021-11-07 21:42:26,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:26,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:26,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:26,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:26,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 21:42:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:26,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 21:42:26,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:26,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:26,663 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:26,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093728873] [2021-11-07 21:42:26,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093728873] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:26,664 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:26,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 21:42:26,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112469318] [2021-11-07 21:42:26,667 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:26,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 21:42:26,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 21:42:26,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 21:42:26,701 INFO L87 Difference]: Start difference. First operand has 206 states, 199 states have (on average 1.7185929648241205) internal successors, (342), 205 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-07 21:42:26,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:26,750 INFO L93 Difference]: Finished difference Result 410 states and 682 transitions. [2021-11-07 21:42:26,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 21:42:26,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-07 21:42:26,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:26,762 INFO L225 Difference]: With dead ends: 410 [2021-11-07 21:42:26,762 INFO L226 Difference]: Without dead ends: 173 [2021-11-07 21:42:26,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.06ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 21:42:26,769 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:26,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 4.51ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 21:42:26,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-07 21:42:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-07 21:42:26,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 167 states have (on average 1.347305389221557) internal successors, (225), 172 states have internal predecessors, (225), 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) [2021-11-07 21:42:26,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2021-11-07 21:42:26,819 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 9 [2021-11-07 21:42:26,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:26,819 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2021-11-07 21:42:26,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-07 21:42:26,820 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2021-11-07 21:42:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 21:42:26,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:26,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:26,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:27,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:27,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:27,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:27,036 INFO L85 PathProgramCache]: Analyzing trace with hash 627334177, now seen corresponding path program 1 times [2021-11-07 21:42:27,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:27,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768696981] [2021-11-07 21:42:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:27,038 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:27,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:27,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:27,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 21:42:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:27,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:27,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:27,258 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 [2021-11-07 21:42:27,285 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 15 treesize of output 7 [2021-11-07 21:42:27,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:27,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:27,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:27,487 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:27,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768696981] [2021-11-07 21:42:27,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768696981] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:27,490 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:27,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 21:42:27,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84494095] [2021-11-07 21:42:27,491 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:27,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 21:42:27,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:27,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 21:42:27,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 21:42:27,496 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-11-07 21:42:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:29,668 INFO L93 Difference]: Finished difference Result 459 states and 596 transitions. [2021-11-07 21:42:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 21:42:29,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 44 [2021-11-07 21:42:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:29,671 INFO L225 Difference]: With dead ends: 459 [2021-11-07 21:42:29,671 INFO L226 Difference]: Without dead ends: 376 [2021-11-07 21:42:29,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 26.65ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 21:42:29,673 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 411 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1987.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.44ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2131.90ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:29,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 800 Invalid, 211 Unknown, 0 Unchecked, 6.44ms Time], IncrementalHoareTripleChecker [7 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2131.90ms Time] [2021-11-07 21:42:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-07 21:42:29,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 175. [2021-11-07 21:42:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 169 states have (on average 1.3431952662721893) internal successors, (227), 174 states have internal predecessors, (227), 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) [2021-11-07 21:42:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2021-11-07 21:42:29,684 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 44 [2021-11-07 21:42:29,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:29,685 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2021-11-07 21:42:29,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-11-07 21:42:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2021-11-07 21:42:29,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 21:42:29,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:29,687 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:29,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 21:42:29,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:29,898 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:29,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:29,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1103505073, now seen corresponding path program 1 times [2021-11-07 21:42:29,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:29,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244064800] [2021-11-07 21:42:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:29,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:29,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:29,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:29,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 21:42:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:30,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:30,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:30,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:30,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:30,520 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:30,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244064800] [2021-11-07 21:42:30,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244064800] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:30,520 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:30,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 21:42:30,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854150746] [2021-11-07 21:42:30,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:30,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 21:42:30,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:30,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 21:42:30,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 21:42:30,536 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2021-11-07 21:42:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:30,609 INFO L93 Difference]: Finished difference Result 355 states and 462 transitions. [2021-11-07 21:42:30,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:42:30,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 96 [2021-11-07 21:42:30,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:30,619 INFO L225 Difference]: With dead ends: 355 [2021-11-07 21:42:30,619 INFO L226 Difference]: Without dead ends: 184 [2021-11-07 21:42:30,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.03ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 21:42:30,624 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 413 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.82ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.36ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:30,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 402 Invalid, 75 Unknown, 0 Unchecked, 1.82ms Time], IncrementalHoareTripleChecker [37 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 58.36ms Time] [2021-11-07 21:42:30,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-07 21:42:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 178. [2021-11-07 21:42:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 172 states have (on average 1.2906976744186047) internal successors, (222), 177 states have internal predecessors, (222), 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) [2021-11-07 21:42:30,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 222 transitions. [2021-11-07 21:42:30,634 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 222 transitions. Word has length 96 [2021-11-07 21:42:30,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:30,635 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 222 transitions. [2021-11-07 21:42:30,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2021-11-07 21:42:30,635 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 222 transitions. [2021-11-07 21:42:30,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 21:42:30,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:30,638 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:30,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 21:42:30,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:30,843 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:30,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:30,844 INFO L85 PathProgramCache]: Analyzing trace with hash 890123355, now seen corresponding path program 1 times [2021-11-07 21:42:30,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:30,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103208106] [2021-11-07 21:42:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:30,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:30,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:30,846 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:30,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 21:42:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:31,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:31,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:31,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:31,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:31,763 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:31,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103208106] [2021-11-07 21:42:31,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103208106] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:31,763 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:31,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 21:42:31,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287180946] [2021-11-07 21:42:31,763 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:31,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 21:42:31,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:31,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 21:42:31,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 21:42:31,765 INFO L87 Difference]: Start difference. First operand 178 states and 222 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-07 21:42:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:32,159 INFO L93 Difference]: Finished difference Result 459 states and 570 transitions. [2021-11-07 21:42:32,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 21:42:32,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2021-11-07 21:42:32,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:32,161 INFO L225 Difference]: With dead ends: 459 [2021-11-07 21:42:32,161 INFO L226 Difference]: Without dead ends: 285 [2021-11-07 21:42:32,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 21:42:32,163 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 97 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 365.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 384.53ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:32,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 452 Invalid, 16 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 384.53ms Time] [2021-11-07 21:42:32,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-11-07 21:42:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 273. [2021-11-07 21:42:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 267 states have (on average 1.2883895131086143) internal successors, (344), 272 states have internal predecessors, (344), 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) [2021-11-07 21:42:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 344 transitions. [2021-11-07 21:42:32,173 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 344 transitions. Word has length 96 [2021-11-07 21:42:32,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:32,173 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 344 transitions. [2021-11-07 21:42:32,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-07 21:42:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 344 transitions. [2021-11-07 21:42:32,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-07 21:42:32,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:32,175 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:32,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:32,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:32,389 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:32,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:32,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2000987094, now seen corresponding path program 1 times [2021-11-07 21:42:32,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:32,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285025897] [2021-11-07 21:42:32,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:32,391 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:32,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:32,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:32,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 21:42:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:32,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:32,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:32,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:32,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 21:42:32,964 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:32,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285025897] [2021-11-07 21:42:32,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285025897] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:32,964 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:32,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 21:42:32,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168342032] [2021-11-07 21:42:32,964 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:32,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 21:42:32,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:32,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 21:42:32,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 21:42:32,965 INFO L87 Difference]: Start difference. First operand 273 states and 344 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2021-11-07 21:42:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:33,015 INFO L93 Difference]: Finished difference Result 504 states and 645 transitions. [2021-11-07 21:42:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:42:33,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 103 [2021-11-07 21:42:33,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:33,017 INFO L225 Difference]: With dead ends: 504 [2021-11-07 21:42:33,017 INFO L226 Difference]: Without dead ends: 276 [2021-11-07 21:42:33,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.18ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 21:42:33,018 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.80ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.79ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:33,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 14 Unknown, 0 Unchecked, 0.80ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 41.79ms Time] [2021-11-07 21:42:33,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-07 21:42:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2021-11-07 21:42:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 270 states have (on average 1.2851851851851852) internal successors, (347), 275 states have internal predecessors, (347), 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) [2021-11-07 21:42:33,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 347 transitions. [2021-11-07 21:42:33,026 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 347 transitions. Word has length 103 [2021-11-07 21:42:33,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:33,026 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 347 transitions. [2021-11-07 21:42:33,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2021-11-07 21:42:33,027 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 347 transitions. [2021-11-07 21:42:33,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-07 21:42:33,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:33,028 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:33,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:33,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:33,240 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:33,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash 416871670, now seen corresponding path program 1 times [2021-11-07 21:42:33,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:33,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156078956] [2021-11-07 21:42:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:33,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:33,243 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:33,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 21:42:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:33,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 21:42:33,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:33,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 21:42:33,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 21:42:33,926 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:33,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156078956] [2021-11-07 21:42:33,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156078956] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 21:42:33,926 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 21:42:33,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-07 21:42:33,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562420376] [2021-11-07 21:42:33,927 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 21:42:33,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 21:42:33,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:33,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 21:42:33,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 21:42:33,928 INFO L87 Difference]: Start difference. First operand 276 states and 347 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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) [2021-11-07 21:42:34,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:34,166 INFO L93 Difference]: Finished difference Result 513 states and 657 transitions. [2021-11-07 21:42:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 21:42:34,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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 106 [2021-11-07 21:42:34,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:34,168 INFO L225 Difference]: With dead ends: 513 [2021-11-07 21:42:34,168 INFO L226 Difference]: Without dead ends: 282 [2021-11-07 21:42:34,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 154.87ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-07 21:42:34,170 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.63ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 160.16ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:34,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 827 Invalid, 52 Unknown, 0 Unchecked, 1.63ms Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 160.16ms Time] [2021-11-07 21:42:34,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-07 21:42:34,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-11-07 21:42:34,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 276 states have (on average 1.2789855072463767) internal successors, (353), 281 states have internal predecessors, (353), 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) [2021-11-07 21:42:34,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 353 transitions. [2021-11-07 21:42:34,180 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 353 transitions. Word has length 106 [2021-11-07 21:42:34,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:34,181 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 353 transitions. [2021-11-07 21:42:34,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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) [2021-11-07 21:42:34,181 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 353 transitions. [2021-11-07 21:42:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 21:42:34,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:34,184 INFO L514 BasicCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:34,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:34,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:34,397 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:34,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:34,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1224332106, now seen corresponding path program 2 times [2021-11-07 21:42:34,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:34,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225152238] [2021-11-07 21:42:34,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 21:42:34,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:34,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:34,400 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:34,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 21:42:34,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 21:42:34,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 21:42:34,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:42:34,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-07 21:42:34,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-07 21:42:34,894 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:34,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225152238] [2021-11-07 21:42:34,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225152238] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:34,894 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:34,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 21:42:34,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230809811] [2021-11-07 21:42:34,894 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:34,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 21:42:34,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:34,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 21:42:34,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 21:42:34,895 INFO L87 Difference]: Start difference. First operand 282 states and 353 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2021-11-07 21:42:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:34,983 INFO L93 Difference]: Finished difference Result 431 states and 555 transitions. [2021-11-07 21:42:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:42:34,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 112 [2021-11-07 21:42:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:34,985 INFO L225 Difference]: With dead ends: 431 [2021-11-07 21:42:34,985 INFO L226 Difference]: Without dead ends: 295 [2021-11-07 21:42:34,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.66ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 21:42:34,986 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 94 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.36ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.85ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:34,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 590 Invalid, 68 Unknown, 0 Unchecked, 1.36ms Time], IncrementalHoareTripleChecker [30 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 72.85ms Time] [2021-11-07 21:42:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-07 21:42:34,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 288. [2021-11-07 21:42:34,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 282 states have (on average 1.2163120567375887) internal successors, (343), 287 states have internal predecessors, (343), 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) [2021-11-07 21:42:34,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 343 transitions. [2021-11-07 21:42:34,994 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 343 transitions. Word has length 112 [2021-11-07 21:42:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:34,995 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 343 transitions. [2021-11-07 21:42:34,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2021-11-07 21:42:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 343 transitions. [2021-11-07 21:42:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 21:42:34,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:34,996 INFO L514 BasicCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:35,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:35,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:35,208 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:35,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:35,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2125746730, now seen corresponding path program 1 times [2021-11-07 21:42:35,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:35,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601122171] [2021-11-07 21:42:35,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:35,209 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:35,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:35,210 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:35,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 21:42:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:35,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 21:42:35,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 21:42:35,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 21:42:36,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:36,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601122171] [2021-11-07 21:42:36,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601122171] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 21:42:36,196 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 21:42:36,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-11-07 21:42:36,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090940488] [2021-11-07 21:42:36,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 21:42:36,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 21:42:36,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 21:42:36,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-07 21:42:36,197 INFO L87 Difference]: Start difference. First operand 288 states and 343 transitions. Second operand has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 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) [2021-11-07 21:42:37,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:37,523 INFO L93 Difference]: Finished difference Result 543 states and 661 transitions. [2021-11-07 21:42:37,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 21:42:37,524 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 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 112 [2021-11-07 21:42:37,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:37,527 INFO L225 Difference]: With dead ends: 543 [2021-11-07 21:42:37,527 INFO L226 Difference]: Without dead ends: 300 [2021-11-07 21:42:37,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 752.98ms TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2021-11-07 21:42:37,529 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 827.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.08ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 888.25ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:37,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1753 Invalid, 165 Unknown, 0 Unchecked, 3.08ms Time], IncrementalHoareTripleChecker [45 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 888.25ms Time] [2021-11-07 21:42:37,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-07 21:42:37,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-11-07 21:42:37,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 294 states have (on average 1.2074829931972788) internal successors, (355), 299 states have internal predecessors, (355), 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) [2021-11-07 21:42:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 355 transitions. [2021-11-07 21:42:37,538 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 355 transitions. Word has length 112 [2021-11-07 21:42:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:37,539 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 355 transitions. [2021-11-07 21:42:37,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 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) [2021-11-07 21:42:37,539 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 355 transitions. [2021-11-07 21:42:37,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 21:42:37,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:37,540 INFO L514 BasicCegarLoop]: trace histogram [14, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:37,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:37,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:37,755 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:37,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1333207466, now seen corresponding path program 2 times [2021-11-07 21:42:37,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:37,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323780703] [2021-11-07 21:42:37,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 21:42:37,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:37,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:37,757 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:37,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 21:42:37,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 21:42:37,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 21:42:37,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 21:42:37,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-07 21:42:38,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-07 21:42:38,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:38,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323780703] [2021-11-07 21:42:38,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323780703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 21:42:38,567 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:42:38,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 9 [2021-11-07 21:42:38,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418550295] [2021-11-07 21:42:38,567 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 21:42:38,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 21:42:38,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 21:42:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 21:42:38,568 INFO L87 Difference]: Start difference. First operand 300 states and 355 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 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) [2021-11-07 21:42:38,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:38,652 INFO L93 Difference]: Finished difference Result 435 states and 521 transitions. [2021-11-07 21:42:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:42:38,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 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 124 [2021-11-07 21:42:38,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:38,654 INFO L225 Difference]: With dead ends: 435 [2021-11-07 21:42:38,654 INFO L226 Difference]: Without dead ends: 293 [2021-11-07 21:42:38,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 58.28ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 21:42:38,656 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 149 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.38ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.66ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:38,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 832 Invalid, 86 Unknown, 0 Unchecked, 1.38ms Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 72.66ms Time] [2021-11-07 21:42:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-07 21:42:38,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 288. [2021-11-07 21:42:38,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 282 states have (on average 1.1879432624113475) internal successors, (335), 287 states have internal predecessors, (335), 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) [2021-11-07 21:42:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 335 transitions. [2021-11-07 21:42:38,665 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 335 transitions. Word has length 124 [2021-11-07 21:42:38,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:38,665 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 335 transitions. [2021-11-07 21:42:38,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 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) [2021-11-07 21:42:38,666 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 335 transitions. [2021-11-07 21:42:38,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 21:42:38,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:38,667 INFO L514 BasicCegarLoop]: trace histogram [14, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:38,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:38,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:38,883 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:38,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:38,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1075042028, now seen corresponding path program 1 times [2021-11-07 21:42:38,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:38,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112076231] [2021-11-07 21:42:38,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:42:38,884 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:38,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:38,885 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:38,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 21:42:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:42:39,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 21:42:39,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 21:42:39,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 21:42:40,522 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:40,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112076231] [2021-11-07 21:42:40,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112076231] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 21:42:40,523 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 21:42:40,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-11-07 21:42:40,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762306131] [2021-11-07 21:42:40,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 21:42:40,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-07 21:42:40,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:40,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-07 21:42:40,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=706, Unknown=0, NotChecked=0, Total=992 [2021-11-07 21:42:40,525 INFO L87 Difference]: Start difference. First operand 288 states and 335 transitions. Second operand has 32 states, 32 states have (on average 4.1875) internal successors, (134), 32 states have internal predecessors, (134), 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) [2021-11-07 21:42:48,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:42:48,110 INFO L93 Difference]: Finished difference Result 555 states and 669 transitions. [2021-11-07 21:42:48,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-07 21:42:48,111 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.1875) internal successors, (134), 32 states have internal predecessors, (134), 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 124 [2021-11-07 21:42:48,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:42:48,112 INFO L225 Difference]: With dead ends: 555 [2021-11-07 21:42:48,112 INFO L226 Difference]: Without dead ends: 312 [2021-11-07 21:42:48,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3235.58ms TimeCoverageRelationStatistics Valid=734, Invalid=1336, Unknown=0, NotChecked=0, Total=2070 [2021-11-07 21:42:48,114 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5087.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.91ms SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5241.43ms IncrementalHoareTripleChecker+Time [2021-11-07 21:42:48,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3237 Invalid, 529 Unknown, 0 Unchecked, 3.91ms Time], IncrementalHoareTripleChecker [157 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 5241.43ms Time] [2021-11-07 21:42:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-07 21:42:48,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2021-11-07 21:42:48,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 306 states have (on average 1.173202614379085) internal successors, (359), 311 states have internal predecessors, (359), 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) [2021-11-07 21:42:48,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 359 transitions. [2021-11-07 21:42:48,125 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 359 transitions. Word has length 124 [2021-11-07 21:42:48,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:42:48,126 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 359 transitions. [2021-11-07 21:42:48,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.1875) internal successors, (134), 32 states have internal predecessors, (134), 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) [2021-11-07 21:42:48,126 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 359 transitions. [2021-11-07 21:42:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-07 21:42:48,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:42:48,128 INFO L514 BasicCegarLoop]: trace histogram [30, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:42:48,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 21:42:48,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:42:48,342 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:42:48,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:42:48,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1997207020, now seen corresponding path program 2 times [2021-11-07 21:42:48,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:42:48,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164310259] [2021-11-07 21:42:48,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 21:42:48,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:42:48,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:42:48,345 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:42:48,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 21:42:48,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 21:42:48,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 21:42:48,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-07 21:42:48,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:42:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 2 proven. 465 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-07 21:42:49,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:42:52,011 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 2 proven. 465 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-07 21:42:52,012 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:42:52,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164310259] [2021-11-07 21:42:52,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164310259] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 21:42:52,012 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 21:42:52,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2021-11-07 21:42:52,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160733234] [2021-11-07 21:42:52,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 21:42:52,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-07 21:42:52,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:42:52,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-07 21:42:52,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=933, Invalid=3099, Unknown=0, NotChecked=0, Total=4032 [2021-11-07 21:42:52,016 INFO L87 Difference]: Start difference. First operand 312 states and 359 transitions. Second operand has 64 states, 64 states have (on average 2.59375) internal successors, (166), 64 states have internal predecessors, (166), 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) [2021-11-07 21:43:53,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:43:53,204 INFO L93 Difference]: Finished difference Result 609 states and 729 transitions. [2021-11-07 21:43:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-07 21:43:53,205 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.59375) internal successors, (166), 64 states have internal predecessors, (166), 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 148 [2021-11-07 21:43:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:43:53,206 INFO L225 Difference]: With dead ends: 609 [2021-11-07 21:43:53,206 INFO L226 Difference]: Without dead ends: 342 [2021-11-07 21:43:53,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 23921.55ms TimeCoverageRelationStatistics Valid=2700, Invalid=6042, Unknown=0, NotChecked=0, Total=8742 [2021-11-07 21:43:53,210 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 6080 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39348.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6277 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.45ms SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39902.66ms IncrementalHoareTripleChecker+Time [2021-11-07 21:43:53,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6277 Invalid, 1619 Unknown, 0 Unchecked, 13.45ms Time], IncrementalHoareTripleChecker [555 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 39902.66ms Time] [2021-11-07 21:43:53,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-07 21:43:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-07 21:43:53,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 336 states have (on average 1.1577380952380953) internal successors, (389), 341 states have internal predecessors, (389), 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) [2021-11-07 21:43:53,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 389 transitions. [2021-11-07 21:43:53,225 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 389 transitions. Word has length 148 [2021-11-07 21:43:53,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:43:53,226 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 389 transitions. [2021-11-07 21:43:53,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.59375) internal successors, (166), 64 states have internal predecessors, (166), 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) [2021-11-07 21:43:53,226 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 389 transitions. [2021-11-07 21:43:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-07 21:43:53,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:43:53,228 INFO L514 BasicCegarLoop]: trace histogram [44, 31, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:43:53,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-07 21:43:53,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:43:53,446 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:43:53,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:43:53,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1100843084, now seen corresponding path program 3 times [2021-11-07 21:43:53,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:43:53,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898101143] [2021-11-07 21:43:53,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 21:43:53,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:43:53,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:43:53,449 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:43:53,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 21:43:53,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-07 21:43:53,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 21:43:53,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 21:43:53,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:43:54,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-11-07 21:43:54,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:43:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-11-07 21:43:54,657 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:43:54,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898101143] [2021-11-07 21:43:54,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898101143] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 21:43:54,657 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 21:43:54,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 21:43:54,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957558669] [2021-11-07 21:43:54,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 21:43:54,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 21:43:54,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:43:54,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 21:43:54,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 21:43:54,658 INFO L87 Difference]: Start difference. First operand 342 states and 389 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2021-11-07 21:43:56,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:43:56,822 INFO L93 Difference]: Finished difference Result 588 states and 667 transitions. [2021-11-07 21:43:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 21:43:56,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 178 [2021-11-07 21:43:56,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:43:56,824 INFO L225 Difference]: With dead ends: 588 [2021-11-07 21:43:56,824 INFO L226 Difference]: Without dead ends: 291 [2021-11-07 21:43:56,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.20ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 21:43:56,825 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 284 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2029.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2136.45ms IncrementalHoareTripleChecker+Time [2021-11-07 21:43:56,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 243 Invalid, 52 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 2136.45ms Time] [2021-11-07 21:43:56,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-07 21:43:56,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2021-11-07 21:43:56,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 285 states have (on average 1.1403508771929824) internal successors, (325), 290 states have internal predecessors, (325), 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) [2021-11-07 21:43:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 325 transitions. [2021-11-07 21:43:56,848 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 325 transitions. Word has length 178 [2021-11-07 21:43:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:43:56,848 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 325 transitions. [2021-11-07 21:43:56,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2021-11-07 21:43:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 325 transitions. [2021-11-07 21:43:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-07 21:43:56,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:43:56,850 INFO L514 BasicCegarLoop]: trace histogram [44, 31, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:43:56,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 21:43:57,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:43:57,065 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:43:57,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:43:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1442706610, now seen corresponding path program 1 times [2021-11-07 21:43:57,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:43:57,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079915544] [2021-11-07 21:43:57,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 21:43:57,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:43:57,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:43:57,067 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:43:57,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 21:43:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 21:43:57,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 21:43:57,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:43:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 2 proven. 496 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-07 21:43:58,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:44:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 2 proven. 496 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-07 21:44:02,454 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:44:02,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079915544] [2021-11-07 21:44:02,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079915544] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 21:44:02,454 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 21:44:02,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-07 21:44:02,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910752803] [2021-11-07 21:44:02,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 21:44:02,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-07 21:44:02,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:44:02,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-07 21:44:02,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=3137, Unknown=0, NotChecked=0, Total=4290 [2021-11-07 21:44:02,457 INFO L87 Difference]: Start difference. First operand 291 states and 325 transitions. Second operand has 66 states, 66 states have (on average 2.6515151515151514) internal successors, (175), 66 states have internal predecessors, (175), 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) [2021-11-07 21:45:13,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:45:13,761 INFO L93 Difference]: Finished difference Result 489 states and 584 transitions. [2021-11-07 21:45:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-07 21:45:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.6515151515151514) internal successors, (175), 66 states have internal predecessors, (175), 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 185 [2021-11-07 21:45:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:45:13,764 INFO L225 Difference]: With dead ends: 489 [2021-11-07 21:45:13,764 INFO L226 Difference]: Without dead ends: 324 [2021-11-07 21:45:13,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 29322.85ms TimeCoverageRelationStatistics Valid=3199, Invalid=6113, Unknown=0, NotChecked=0, Total=9312 [2021-11-07 21:45:13,766 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 6426 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44933.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6622 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.02ms SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45765.76ms IncrementalHoareTripleChecker+Time [2021-11-07 21:45:13,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6622 Invalid, 1927 Unknown, 0 Unchecked, 15.02ms Time], IncrementalHoareTripleChecker [591 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 45765.76ms Time] [2021-11-07 21:45:13,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-07 21:45:13,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-07 21:45:13,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 318 states have (on average 1.1257861635220126) internal successors, (358), 323 states have internal predecessors, (358), 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) [2021-11-07 21:45:13,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 358 transitions. [2021-11-07 21:45:13,785 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 358 transitions. Word has length 185 [2021-11-07 21:45:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:45:13,785 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 358 transitions. [2021-11-07 21:45:13,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.6515151515151514) internal successors, (175), 66 states have internal predecessors, (175), 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) [2021-11-07 21:45:13,786 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 358 transitions. [2021-11-07 21:45:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-07 21:45:13,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:45:13,788 INFO L514 BasicCegarLoop]: trace histogram [64, 44, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:45:13,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 21:45:14,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:45:14,003 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:45:14,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:45:14,004 INFO L85 PathProgramCache]: Analyzing trace with hash 670930938, now seen corresponding path program 2 times [2021-11-07 21:45:14,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:45:14,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245176417] [2021-11-07 21:45:14,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 21:45:14,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:45:14,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:45:14,006 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:45:14,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 21:45:15,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 21:45:15,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 21:45:15,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-07 21:45:15,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:45:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 2 proven. 2080 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-07 21:45:18,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:45:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 2 proven. 2080 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-07 21:45:30,378 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:45:30,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245176417] [2021-11-07 21:45:30,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245176417] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 21:45:30,378 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 21:45:30,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 132 [2021-11-07 21:45:30,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670434492] [2021-11-07 21:45:30,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 21:45:30,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2021-11-07 21:45:30,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:45:30,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2021-11-07 21:45:30,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4486, Invalid=12806, Unknown=0, NotChecked=0, Total=17292 [2021-11-07 21:45:30,384 INFO L87 Difference]: Start difference. First operand 324 states and 358 transitions. Second operand has 132 states, 132 states have (on average 1.8257575757575757) internal successors, (241), 132 states have internal predecessors, (241), 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) [2021-11-07 21:49:05,297 WARN L227 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 21:49:13,262 WARN L227 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 21:49:20,903 WARN L227 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 187 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 21:51:07,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 21:51:07,521 INFO L93 Difference]: Finished difference Result 555 states and 683 transitions. [2021-11-07 21:51:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2021-11-07 21:51:07,522 INFO L78 Accepts]: Start accepts. Automaton has has 132 states, 132 states have (on average 1.8257575757575757) internal successors, (241), 132 states have internal predecessors, (241), 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 218 [2021-11-07 21:51:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 21:51:07,523 INFO L225 Difference]: With dead ends: 555 [2021-11-07 21:51:07,523 INFO L226 Difference]: Without dead ends: 390 [2021-11-07 21:51:07,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1995 ImplicationChecksByTransitivity, 232722.50ms TimeCoverageRelationStatistics Valid=12934, Invalid=25286, Unknown=0, NotChecked=0, Total=38220 [2021-11-07 21:51:07,533 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 13041 mSDsCounter, 0 mSdLazyCounter, 4795 mSolverCounterSat, 1119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115508.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13237 SdHoareTripleChecker+Invalid, 5914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.55ms SdHoareTripleChecker+Time, 1119 IncrementalHoareTripleChecker+Valid, 4795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118180.10ms IncrementalHoareTripleChecker+Time [2021-11-07 21:51:07,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13237 Invalid, 5914 Unknown, 0 Unchecked, 38.55ms Time], IncrementalHoareTripleChecker [1119 Valid, 4795 Invalid, 0 Unknown, 0 Unchecked, 118180.10ms Time] [2021-11-07 21:51:07,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-07 21:51:07,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2021-11-07 21:51:07,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 384 states have (on average 1.1041666666666667) internal successors, (424), 389 states have internal predecessors, (424), 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) [2021-11-07 21:51:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 424 transitions. [2021-11-07 21:51:07,565 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 424 transitions. Word has length 218 [2021-11-07 21:51:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 21:51:07,566 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 424 transitions. [2021-11-07 21:51:07,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 132 states have (on average 1.8257575757575757) internal successors, (241), 132 states have internal predecessors, (241), 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) [2021-11-07 21:51:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 424 transitions. [2021-11-07 21:51:07,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-07 21:51:07,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 21:51:07,568 INFO L514 BasicCegarLoop]: trace histogram [130, 44, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 21:51:07,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 21:51:07,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 21:51:07,787 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 21:51:07,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 21:51:07,788 INFO L85 PathProgramCache]: Analyzing trace with hash 249758330, now seen corresponding path program 3 times [2021-11-07 21:51:07,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 21:51:07,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085913406] [2021-11-07 21:51:07,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 21:51:07,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 21:51:07,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 21:51:07,790 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 21:51:07,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 21:52:57,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 67 check-sat command(s) [2021-11-07 21:52:57,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 21:52:58,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 134 conjunts are in the unsatisfiable core [2021-11-07 21:52:58,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 21:53:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9507 backedges. 2 proven. 8515 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-07 21:53:08,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 21:54:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9507 backedges. 2 proven. 8515 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-07 21:54:29,956 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 21:54:29,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085913406] [2021-11-07 21:54:29,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085913406] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 21:54:29,957 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 21:54:29,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [133, 133] total 264 [2021-11-07 21:54:29,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858444165] [2021-11-07 21:54:29,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 21:54:29,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 264 states [2021-11-07 21:54:29,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 21:54:29,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 264 interpolants. [2021-11-07 21:54:29,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17686, Invalid=51746, Unknown=0, NotChecked=0, Total=69432 [2021-11-07 21:54:29,969 INFO L87 Difference]: Start difference. First operand 390 states and 424 transitions. Second operand has 264 states, 264 states have (on average 1.4128787878787878) internal successors, (373), 264 states have internal predecessors, (373), 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) [2021-11-07 21:55:40,560 WARN L227 SmtUtils]: Spent 59.04s on a formula simplification. DAG size of input: 652 DAG size of output: 566 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 21:55:43,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:55:44,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:55:46,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:55:48,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:55:49,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:55:51,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:55:52,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:55:54,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:55:58,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:00,056 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:01,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:03,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:04,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:05,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:07,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:08,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:10,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:13,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 21:56:15,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15