./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash f3090fd14639372da088dcbc149768c93516e312be941c28b3a0b4b80aaee842 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 01:36:33,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 01:36:33,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 01:36:33,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 01:36:33,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 01:36:33,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 01:36:33,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 01:36:33,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 01:36:33,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 01:36:33,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 01:36:33,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 01:36:33,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 01:36:33,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 01:36:33,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 01:36:33,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 01:36:33,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 01:36:33,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 01:36:33,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 01:36:33,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 01:36:33,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 01:36:33,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 01:36:33,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 01:36:33,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 01:36:33,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 01:36:33,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 01:36:33,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 01:36:33,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 01:36:33,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 01:36:33,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 01:36:33,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 01:36:33,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 01:36:33,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 01:36:33,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 01:36:33,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 01:36:33,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 01:36:33,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 01:36:33,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 01:36:33,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 01:36:33,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 01:36:33,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 01:36:33,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 01:36:33,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 01:36:33,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 01:36:33,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 01:36:33,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 01:36:33,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 01:36:33,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 01:36:33,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 01:36:33,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 01:36:33,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 01:36:33,332 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 01:36:33,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 01:36:33,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 01:36:33,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 01:36:33,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 01:36:33,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 01:36:33,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 01:36:33,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 01:36:33,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 01:36:33,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 01:36:33,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 01:36:33,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 01:36:33,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 01:36:33,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 01:36:33,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 01:36:33,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 01:36:33,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 01:36:33,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 01:36:33,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 01:36:33,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 01:36:33,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 01:36:33,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 01:36:33,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 01:36:33,337 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3090fd14639372da088dcbc149768c93516e312be941c28b3a0b4b80aaee842 [2021-12-18 01:36:33,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 01:36:33,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 01:36:33,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 01:36:33,588 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 01:36:33,589 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 01:36:33,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2021-12-18 01:36:33,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e0a6002/08737076a0f24cb9accc3b70844bc733/FLAGdf0fe1d06 [2021-12-18 01:36:34,233 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 01:36:34,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2021-12-18 01:36:34,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e0a6002/08737076a0f24cb9accc3b70844bc733/FLAGdf0fe1d06 [2021-12-18 01:36:34,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e0a6002/08737076a0f24cb9accc3b70844bc733 [2021-12-18 01:36:34,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 01:36:34,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 01:36:34,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 01:36:34,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 01:36:34,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 01:36:34,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 01:36:34" (1/1) ... [2021-12-18 01:36:34,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154fbf83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:34, skipping insertion in model container [2021-12-18 01:36:34,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 01:36:34" (1/1) ... [2021-12-18 01:36:34,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 01:36:34,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 01:36:35,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i[159323,159336] [2021-12-18 01:36:35,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:36:35,660 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 01:36:35,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i[159323,159336] [2021-12-18 01:36:35,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:36:35,952 INFO L208 MainTranslator]: Completed translation [2021-12-18 01:36:35,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35 WrapperNode [2021-12-18 01:36:35,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 01:36:35,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 01:36:35,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 01:36:35,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 01:36:35,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,134 INFO L137 Inliner]: procedures = 131, calls = 748, calls flagged for inlining = 45, calls inlined = 42, statements flattened = 2145 [2021-12-18 01:36:36,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 01:36:36,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 01:36:36,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 01:36:36,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 01:36:36,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 01:36:36,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 01:36:36,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 01:36:36,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 01:36:36,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (1/1) ... [2021-12-18 01:36:36,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 01:36:36,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:36:36,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 01:36:36,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 01:36:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 01:36:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 01:36:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 01:36:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-18 01:36:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-18 01:36:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-18 01:36:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-18 01:36:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 01:36:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 01:36:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 01:36:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-18 01:36:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-18 01:36:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 01:36:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 01:36:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 01:36:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 01:36:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-18 01:36:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-18 01:36:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 01:36:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 01:36:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-18 01:36:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-18 01:36:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-18 01:36:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-18 01:36:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 01:36:36,437 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 01:36:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2021-12-18 01:36:36,437 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2021-12-18 01:36:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 01:36:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 01:36:36,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 01:36:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-18 01:36:36,438 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-18 01:36:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-12-18 01:36:36,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-12-18 01:36:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-18 01:36:36,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-18 01:36:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 01:36:36,439 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 01:36:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 01:36:36,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 01:36:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 01:36:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2021-12-18 01:36:36,440 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2021-12-18 01:36:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2021-12-18 01:36:36,440 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2021-12-18 01:36:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-18 01:36:36,440 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-18 01:36:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 01:36:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2021-12-18 01:36:36,441 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2021-12-18 01:36:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 01:36:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 01:36:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 01:36:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2021-12-18 01:36:36,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2021-12-18 01:36:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-18 01:36:36,443 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-18 01:36:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 01:36:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-18 01:36:36,444 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-18 01:36:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 01:36:36,444 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 01:36:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 01:36:36,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 01:36:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-18 01:36:36,444 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-18 01:36:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-18 01:36:36,445 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-18 01:36:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-18 01:36:36,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-18 01:36:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 01:36:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 01:36:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 01:36:36,446 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 01:36:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-18 01:36:36,446 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-18 01:36:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 01:36:36,447 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 01:36:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 01:36:36,447 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 01:36:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 01:36:36,447 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 01:36:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 01:36:36,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 01:36:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-18 01:36:36,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-18 01:36:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2021-12-18 01:36:36,448 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2021-12-18 01:36:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-12-18 01:36:36,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-12-18 01:36:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 01:36:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 01:36:36,449 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 01:36:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-18 01:36:36,450 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-18 01:36:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-18 01:36:36,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-18 01:36:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 01:36:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 01:36:36,451 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 01:36:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 01:36:36,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 01:36:36,876 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 01:36:36,879 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 01:36:37,127 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:36:37,139 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-12-18 01:36:37,139 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-12-18 01:36:37,320 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-12-18 01:36:37,369 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:36:37,376 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:36:37,384 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:36:38,309 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##275: assume !false; [2021-12-18 01:36:38,310 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##274: assume false; [2021-12-18 01:36:38,310 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2021-12-18 01:36:38,310 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2021-12-18 01:36:38,310 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2021-12-18 01:36:38,311 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2021-12-18 01:36:38,341 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 01:36:38,351 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 01:36:38,352 INFO L301 CfgBuilder]: Removed 26 assume(true) statements. [2021-12-18 01:36:38,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:36:38 BoogieIcfgContainer [2021-12-18 01:36:38,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 01:36:38,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 01:36:38,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 01:36:38,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 01:36:38,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 01:36:34" (1/3) ... [2021-12-18 01:36:38,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71300a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 01:36:38, skipping insertion in model container [2021-12-18 01:36:38,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:36:35" (2/3) ... [2021-12-18 01:36:38,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71300a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 01:36:38, skipping insertion in model container [2021-12-18 01:36:38,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:36:38" (3/3) ... [2021-12-18 01:36:38,362 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2021-12-18 01:36:38,367 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 01:36:38,370 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 01:36:38,425 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 01:36:38,434 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 01:36:38,435 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 01:36:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 633 states, 448 states have (on average 1.4419642857142858) internal successors, (646), 471 states have internal predecessors, (646), 141 states have call successors, (141), 43 states have call predecessors, (141), 42 states have return successors, (139), 133 states have call predecessors, (139), 139 states have call successors, (139) [2021-12-18 01:36:38,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-18 01:36:38,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:38,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:38,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:36:38,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:36:38,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1746931262, now seen corresponding path program 1 times [2021-12-18 01:36:38,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:36:38,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745532017] [2021-12-18 01:36:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:38,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:36:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:38,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:36:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 01:36:38,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:36:38,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745532017] [2021-12-18 01:36:38,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745532017] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:36:38,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:36:38,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 01:36:38,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089058366] [2021-12-18 01:36:38,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:36:38,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 01:36:38,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:36:38,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 01:36:38,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 01:36:38,985 INFO L87 Difference]: Start difference. First operand has 633 states, 448 states have (on average 1.4419642857142858) internal successors, (646), 471 states have internal predecessors, (646), 141 states have call successors, (141), 43 states have call predecessors, (141), 42 states have return successors, (139), 133 states have call predecessors, (139), 139 states have call successors, (139) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 01:36:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:36:39,153 INFO L93 Difference]: Finished difference Result 1859 states and 2764 transitions. [2021-12-18 01:36:39,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 01:36:39,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-18 01:36:39,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:36:39,179 INFO L225 Difference]: With dead ends: 1859 [2021-12-18 01:36:39,179 INFO L226 Difference]: Without dead ends: 1227 [2021-12-18 01:36:39,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 01:36:39,192 INFO L933 BasicCegarLoop]: 1060 mSDtfsCounter, 851 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:36:39,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 1901 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 01:36:39,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2021-12-18 01:36:39,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1223. [2021-12-18 01:36:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 868 states have (on average 1.3191244239631337) internal successors, (1145), 898 states have internal predecessors, (1145), 273 states have call successors, (273), 82 states have call predecessors, (273), 81 states have return successors, (271), 257 states have call predecessors, (271), 269 states have call successors, (271) [2021-12-18 01:36:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1689 transitions. [2021-12-18 01:36:39,404 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1689 transitions. Word has length 15 [2021-12-18 01:36:39,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:36:39,405 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 1689 transitions. [2021-12-18 01:36:39,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 01:36:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1689 transitions. [2021-12-18 01:36:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-18 01:36:39,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:39,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:39,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 01:36:39,407 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:36:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:36:39,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1679402514, now seen corresponding path program 1 times [2021-12-18 01:36:39,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:36:39,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892326456] [2021-12-18 01:36:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:39,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:36:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:36:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:39,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 01:36:39,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:36:39,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892326456] [2021-12-18 01:36:39,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892326456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:36:39,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:36:39,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 01:36:39,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631590138] [2021-12-18 01:36:39,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:36:39,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 01:36:39,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:36:39,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 01:36:39,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 01:36:39,551 INFO L87 Difference]: Start difference. First operand 1223 states and 1689 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 01:36:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:36:39,708 INFO L93 Difference]: Finished difference Result 3644 states and 5042 transitions. [2021-12-18 01:36:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 01:36:39,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-12-18 01:36:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:36:39,728 INFO L225 Difference]: With dead ends: 3644 [2021-12-18 01:36:39,729 INFO L226 Difference]: Without dead ends: 2424 [2021-12-18 01:36:39,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 01:36:39,741 INFO L933 BasicCegarLoop]: 987 mSDtfsCounter, 841 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:36:39,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [841 Valid, 1824 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 01:36:39,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2021-12-18 01:36:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2417. [2021-12-18 01:36:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 1716 states have (on average 1.317016317016317) internal successors, (2260), 1771 states have internal predecessors, (2260), 540 states have call successors, (540), 161 states have call predecessors, (540), 160 states have return successors, (540), 512 states have call predecessors, (540), 536 states have call successors, (540) [2021-12-18 01:36:39,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 3340 transitions. [2021-12-18 01:36:39,866 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 3340 transitions. Word has length 16 [2021-12-18 01:36:39,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:36:39,867 INFO L470 AbstractCegarLoop]: Abstraction has 2417 states and 3340 transitions. [2021-12-18 01:36:39,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 01:36:39,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 3340 transitions. [2021-12-18 01:36:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-18 01:36:39,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:39,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:39,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 01:36:39,877 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:36:39,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:36:39,879 INFO L85 PathProgramCache]: Analyzing trace with hash 627657167, now seen corresponding path program 1 times [2021-12-18 01:36:39,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:36:39,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67225651] [2021-12-18 01:36:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:39,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:36:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:40,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:36:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:36:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:40,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 01:36:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 01:36:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 01:36:40,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:36:40,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67225651] [2021-12-18 01:36:40,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67225651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:36:40,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:36:40,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 01:36:40,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716924191] [2021-12-18 01:36:40,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:36:40,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:36:40,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:36:40,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:36:40,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:36:40,102 INFO L87 Difference]: Start difference. First operand 2417 states and 3340 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:36:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:36:41,121 INFO L93 Difference]: Finished difference Result 5707 states and 8072 transitions. [2021-12-18 01:36:41,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:36:41,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2021-12-18 01:36:41,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:36:41,140 INFO L225 Difference]: With dead ends: 5707 [2021-12-18 01:36:41,140 INFO L226 Difference]: Without dead ends: 3301 [2021-12-18 01:36:41,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:36:41,149 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 381 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-18 01:36:41,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1998 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-18 01:36:41,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3301 states. [2021-12-18 01:36:41,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3301 to 3209. [2021-12-18 01:36:41,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3209 states, 2300 states have (on average 1.3282608695652174) internal successors, (3055), 2363 states have internal predecessors, (3055), 748 states have call successors, (748), 161 states have call predecessors, (748), 160 states have return successors, (750), 716 states have call predecessors, (750), 744 states have call successors, (750) [2021-12-18 01:36:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3209 states to 3209 states and 4553 transitions. [2021-12-18 01:36:41,320 INFO L78 Accepts]: Start accepts. Automaton has 3209 states and 4553 transitions. Word has length 54 [2021-12-18 01:36:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:36:41,320 INFO L470 AbstractCegarLoop]: Abstraction has 3209 states and 4553 transitions. [2021-12-18 01:36:41,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:36:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3209 states and 4553 transitions. [2021-12-18 01:36:41,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-18 01:36:41,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:41,325 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:41,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 01:36:41,325 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:36:41,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:36:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash -136231158, now seen corresponding path program 1 times [2021-12-18 01:36:41,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:36:41,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954373733] [2021-12-18 01:36:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:41,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:36:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:36:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 01:36:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:36:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 01:36:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 01:36:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 01:36:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 01:36:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 01:36:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:36:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-18 01:36:41,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:36:41,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954373733] [2021-12-18 01:36:41,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954373733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:36:41,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:36:41,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 01:36:41,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103216047] [2021-12-18 01:36:41,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:36:41,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 01:36:41,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:36:41,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 01:36:41,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:36:41,515 INFO L87 Difference]: Start difference. First operand 3209 states and 4553 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 01:36:42,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:36:42,632 INFO L93 Difference]: Finished difference Result 8071 states and 11813 transitions. [2021-12-18 01:36:42,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:36:42,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2021-12-18 01:36:42,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:36:42,660 INFO L225 Difference]: With dead ends: 8071 [2021-12-18 01:36:42,660 INFO L226 Difference]: Without dead ends: 4871 [2021-12-18 01:36:42,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:36:42,673 INFO L933 BasicCegarLoop]: 922 mSDtfsCounter, 700 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-18 01:36:42,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 1941 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-18 01:36:42,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2021-12-18 01:36:42,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 4779. [2021-12-18 01:36:42,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4779 states, 3462 states have (on average 1.36683997689197) internal successors, (4732), 3569 states have internal predecessors, (4732), 1156 states have call successors, (1156), 161 states have call predecessors, (1156), 160 states have return successors, (1160), 1104 states have call predecessors, (1160), 1152 states have call successors, (1160) [2021-12-18 01:36:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 7048 transitions. [2021-12-18 01:36:42,907 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 7048 transitions. Word has length 82 [2021-12-18 01:36:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:36:42,907 INFO L470 AbstractCegarLoop]: Abstraction has 4779 states and 7048 transitions. [2021-12-18 01:36:42,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 01:36:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 7048 transitions. [2021-12-18 01:36:42,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-18 01:36:42,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:42,913 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:42,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 01:36:42,913 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:36:42,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:36:42,914 INFO L85 PathProgramCache]: Analyzing trace with hash 948538537, now seen corresponding path program 1 times [2021-12-18 01:36:42,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:36:42,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776258494] [2021-12-18 01:36:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:42,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:36:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:36:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:36:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:36:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:36:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 01:36:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 01:36:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 01:36:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 01:36:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-18 01:36:43,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:36:43,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776258494] [2021-12-18 01:36:43,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776258494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:36:43,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:36:43,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 01:36:43,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864718734] [2021-12-18 01:36:43,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:36:43,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 01:36:43,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:36:43,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 01:36:43,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 01:36:43,101 INFO L87 Difference]: Start difference. First operand 4779 states and 7048 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 01:36:44,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:36:44,901 INFO L93 Difference]: Finished difference Result 13013 states and 19322 transitions. [2021-12-18 01:36:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 01:36:44,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2021-12-18 01:36:44,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:36:44,977 INFO L225 Difference]: With dead ends: 13013 [2021-12-18 01:36:44,978 INFO L226 Difference]: Without dead ends: 8245 [2021-12-18 01:36:44,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:36:44,993 INFO L933 BasicCegarLoop]: 890 mSDtfsCounter, 1001 mSDsluCounter, 1751 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-18 01:36:44,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 2641 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [536 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-18 01:36:45,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2021-12-18 01:36:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 7955. [2021-12-18 01:36:45,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7955 states, 5782 states have (on average 1.3778969214804566) internal successors, (7967), 5977 states have internal predecessors, (7967), 1896 states have call successors, (1896), 277 states have call predecessors, (1896), 276 states have return successors, (1920), 1772 states have call predecessors, (1920), 1892 states have call successors, (1920) [2021-12-18 01:36:45,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7955 states to 7955 states and 11783 transitions. [2021-12-18 01:36:45,369 INFO L78 Accepts]: Start accepts. Automaton has 7955 states and 11783 transitions. Word has length 88 [2021-12-18 01:36:45,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:36:45,369 INFO L470 AbstractCegarLoop]: Abstraction has 7955 states and 11783 transitions. [2021-12-18 01:36:45,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 01:36:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand 7955 states and 11783 transitions. [2021-12-18 01:36:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-18 01:36:45,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:45,376 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:45,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 01:36:45,376 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:36:45,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:36:45,377 INFO L85 PathProgramCache]: Analyzing trace with hash 455912363, now seen corresponding path program 1 times [2021-12-18 01:36:45,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:36:45,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106749893] [2021-12-18 01:36:45,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:45,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:36:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:36:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:36:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:36:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:36:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 01:36:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 01:36:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 01:36:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 01:36:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-18 01:36:45,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:36:45,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106749893] [2021-12-18 01:36:45,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106749893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:36:45,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:36:45,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 01:36:45,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011356252] [2021-12-18 01:36:45,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:36:45,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 01:36:45,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:36:45,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 01:36:45,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 01:36:45,647 INFO L87 Difference]: Start difference. First operand 7955 states and 11783 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-18 01:36:46,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:36:46,682 INFO L93 Difference]: Finished difference Result 16157 states and 24013 transitions. [2021-12-18 01:36:46,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 01:36:46,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2021-12-18 01:36:46,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:36:46,742 INFO L225 Difference]: With dead ends: 16157 [2021-12-18 01:36:46,743 INFO L226 Difference]: Without dead ends: 8175 [2021-12-18 01:36:46,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:36:46,774 INFO L933 BasicCegarLoop]: 848 mSDtfsCounter, 341 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-18 01:36:46,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 2670 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-18 01:36:46,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8175 states. [2021-12-18 01:36:47,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8175 to 7917. [2021-12-18 01:36:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7917 states, 5768 states have (on average 1.3774271844660195) internal successors, (7945), 5969 states have internal predecessors, (7945), 1869 states have call successors, (1869), 280 states have call predecessors, (1869), 279 states have return successors, (1893), 1739 states have call predecessors, (1893), 1865 states have call successors, (1893) [2021-12-18 01:36:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7917 states to 7917 states and 11707 transitions. [2021-12-18 01:36:47,138 INFO L78 Accepts]: Start accepts. Automaton has 7917 states and 11707 transitions. Word has length 88 [2021-12-18 01:36:47,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:36:47,138 INFO L470 AbstractCegarLoop]: Abstraction has 7917 states and 11707 transitions. [2021-12-18 01:36:47,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-18 01:36:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 7917 states and 11707 transitions. [2021-12-18 01:36:47,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-18 01:36:47,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:47,143 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:47,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 01:36:47,144 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:36:47,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:36:47,144 INFO L85 PathProgramCache]: Analyzing trace with hash 973286060, now seen corresponding path program 1 times [2021-12-18 01:36:47,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:36:47,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794933845] [2021-12-18 01:36:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:47,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:36:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:36:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:36:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:36:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:36:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:36:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 01:36:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 01:36:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:36:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 01:36:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 01:36:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 01:36:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 01:36:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 01:36:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 01:36:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:47,389 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-18 01:36:47,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:36:47,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794933845] [2021-12-18 01:36:47,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794933845] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:36:47,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:36:47,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 01:36:47,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004310184] [2021-12-18 01:36:47,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:36:47,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 01:36:47,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:36:47,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 01:36:47,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 01:36:47,392 INFO L87 Difference]: Start difference. First operand 7917 states and 11707 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-18 01:36:48,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:36:48,684 INFO L93 Difference]: Finished difference Result 14741 states and 21681 transitions. [2021-12-18 01:36:48,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 01:36:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 124 [2021-12-18 01:36:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:36:48,713 INFO L225 Difference]: With dead ends: 14741 [2021-12-18 01:36:48,713 INFO L226 Difference]: Without dead ends: 6815 [2021-12-18 01:36:48,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-18 01:36:48,743 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 258 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:36:48,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 3692 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-18 01:36:48,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2021-12-18 01:36:49,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 6570. [2021-12-18 01:36:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6570 states, 4775 states have (on average 1.3608376963350786) internal successors, (6498), 4929 states have internal predecessors, (6498), 1516 states have call successors, (1516), 279 states have call predecessors, (1516), 278 states have return successors, (1529), 1417 states have call predecessors, (1529), 1511 states have call successors, (1529) [2021-12-18 01:36:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6570 states to 6570 states and 9543 transitions. [2021-12-18 01:36:49,039 INFO L78 Accepts]: Start accepts. Automaton has 6570 states and 9543 transitions. Word has length 124 [2021-12-18 01:36:49,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:36:49,041 INFO L470 AbstractCegarLoop]: Abstraction has 6570 states and 9543 transitions. [2021-12-18 01:36:49,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-18 01:36:49,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6570 states and 9543 transitions. [2021-12-18 01:36:49,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 01:36:49,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:49,046 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:49,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 01:36:49,046 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:36:49,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:36:49,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1605305614, now seen corresponding path program 1 times [2021-12-18 01:36:49,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:36:49,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223402926] [2021-12-18 01:36:49,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:49,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:36:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:36:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:36:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:36:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:36:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:36:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:36:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:36:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:36:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:36:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:36:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:36:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:36:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:36:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:36:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 01:36:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-18 01:36:49,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:36:49,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223402926] [2021-12-18 01:36:49,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223402926] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:36:49,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87385053] [2021-12-18 01:36:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:36:49,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:36:49,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:36:49,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:36:49,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 01:36:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:36:50,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1980 conjuncts, 62 conjunts are in the unsatisfiable core [2021-12-18 01:36:50,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:36:50,771 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 7 treesize of output 3 [2021-12-18 01:36:50,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:36:50,907 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 7 treesize of output 3 [2021-12-18 01:36:50,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:36:51,045 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 7 treesize of output 3 [2021-12-18 01:36:51,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:36:51,168 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 7 treesize of output 3 [2021-12-18 01:36:51,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:36:51,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:36:51,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:36:51,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:36:51,492 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 [2021-12-18 01:36:51,532 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-18 01:36:51,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 01:36:51,613 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1727 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_iowarrior_probe_~dev~8#1.base| v_ArrVal_1727) |c_~#debug~0.base|) |c_~#debug~0.offset|) 0)) is different from false [2021-12-18 01:36:51,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87385053] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:36:51,626 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 01:36:51,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2021-12-18 01:36:51,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505310240] [2021-12-18 01:36:51,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 01:36:51,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-18 01:36:51,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:36:51,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-18 01:36:51,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=622, Unknown=11, NotChecked=50, Total=756 [2021-12-18 01:36:51,627 INFO L87 Difference]: Start difference. First operand 6570 states and 9543 transitions. Second operand has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (30), 10 states have call predecessors, (30), 5 states have call successors, (30) [2021-12-18 01:36:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:36:59,440 INFO L93 Difference]: Finished difference Result 13575 states and 19795 transitions. [2021-12-18 01:36:59,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-18 01:36:59,441 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (30), 10 states have call predecessors, (30), 5 states have call successors, (30) Word has length 125 [2021-12-18 01:36:59,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:36:59,471 INFO L225 Difference]: With dead ends: 13575 [2021-12-18 01:36:59,471 INFO L226 Difference]: Without dead ends: 7008 [2021-12-18 01:36:59,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 157 SyntacticMatches, 10 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=317, Invalid=2008, Unknown=31, NotChecked=94, Total=2450 [2021-12-18 01:36:59,493 INFO L933 BasicCegarLoop]: 831 mSDtfsCounter, 1521 mSDsluCounter, 9492 mSDsCounter, 0 mSdLazyCounter, 7492 mSolverCounterSat, 1165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 10323 SdHoareTripleChecker+Invalid, 9684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1165 IncrementalHoareTripleChecker+Valid, 7492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1027 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-18 01:36:59,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1592 Valid, 10323 Invalid, 9684 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1165 Valid, 7492 Invalid, 0 Unknown, 1027 Unchecked, 6.8s Time] [2021-12-18 01:36:59,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2021-12-18 01:36:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 6756. [2021-12-18 01:36:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 4909 states have (on average 1.353025056019556) internal successors, (6642), 5076 states have internal predecessors, (6642), 1528 states have call successors, (1528), 283 states have call predecessors, (1528), 318 states have return successors, (1701), 1452 states have call predecessors, (1701), 1523 states have call successors, (1701) [2021-12-18 01:36:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 9871 transitions. [2021-12-18 01:36:59,773 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 9871 transitions. Word has length 125 [2021-12-18 01:36:59,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:36:59,774 INFO L470 AbstractCegarLoop]: Abstraction has 6756 states and 9871 transitions. [2021-12-18 01:36:59,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (30), 10 states have call predecessors, (30), 5 states have call successors, (30) [2021-12-18 01:36:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 9871 transitions. [2021-12-18 01:36:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 01:36:59,778 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:36:59,779 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:36:59,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 01:37:00,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:37:00,004 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:00,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:00,004 INFO L85 PathProgramCache]: Analyzing trace with hash -666773999, now seen corresponding path program 1 times [2021-12-18 01:37:00,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:00,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103274516] [2021-12-18 01:37:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:00,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 01:37:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-18 01:37:00,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:00,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103274516] [2021-12-18 01:37:00,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103274516] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:37:00,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571257715] [2021-12-18 01:37:00,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:00,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:37:00,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:37:00,992 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:37:00,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 01:37:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:01,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 1989 conjuncts, 70 conjunts are in the unsatisfiable core [2021-12-18 01:37:01,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:37:02,102 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-18 01:37:02,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-18 01:37:02,255 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 7 treesize of output 3 [2021-12-18 01:37:02,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:37:02,353 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 7 treesize of output 3 [2021-12-18 01:37:02,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:37:02,473 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 7 treesize of output 3 [2021-12-18 01:37:02,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:37:02,597 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 7 treesize of output 3 [2021-12-18 01:37:02,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:37:02,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:37:02,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:37:02,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 01:37:02,835 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 [2021-12-18 01:37:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-18 01:37:02,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 01:37:02,892 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2227 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_iowarrior_probe_~dev~8#1.base| v_ArrVal_2227) |c_~#debug~0.base|) |c_~#debug~0.offset|) 0)) is different from false [2021-12-18 01:37:02,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571257715] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:37:02,902 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 01:37:02,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15] total 33 [2021-12-18 01:37:02,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477835160] [2021-12-18 01:37:02,902 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 01:37:02,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-18 01:37:02,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-18 01:37:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=945, Unknown=13, NotChecked=62, Total=1122 [2021-12-18 01:37:02,904 INFO L87 Difference]: Start difference. First operand 6756 states and 9871 transitions. Second operand has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 22 states have internal predecessors, (158), 11 states have call successors, (34), 11 states have call predecessors, (34), 12 states have return successors, (30), 14 states have call predecessors, (30), 10 states have call successors, (30) [2021-12-18 01:37:15,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:15,513 INFO L93 Difference]: Finished difference Result 8668 states and 12365 transitions. [2021-12-18 01:37:15,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-12-18 01:37:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 22 states have internal predecessors, (158), 11 states have call successors, (34), 11 states have call predecessors, (34), 12 states have return successors, (30), 14 states have call predecessors, (30), 10 states have call successors, (30) Word has length 125 [2021-12-18 01:37:15,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:15,545 INFO L225 Difference]: With dead ends: 8668 [2021-12-18 01:37:15,546 INFO L226 Difference]: Without dead ends: 8523 [2021-12-18 01:37:15,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 177 SyntacticMatches, 7 SemanticMatches, 112 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3814 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1501, Invalid=11072, Unknown=87, NotChecked=222, Total=12882 [2021-12-18 01:37:15,556 INFO L933 BasicCegarLoop]: 900 mSDtfsCounter, 3860 mSDsluCounter, 9779 mSDsCounter, 0 mSdLazyCounter, 13364 mSolverCounterSat, 2837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 10679 SdHoareTripleChecker+Invalid, 17790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2837 IncrementalHoareTripleChecker+Valid, 13364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1589 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:15,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3876 Valid, 10679 Invalid, 17790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2837 Valid, 13364 Invalid, 0 Unknown, 1589 Unchecked, 10.3s Time] [2021-12-18 01:37:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8523 states. [2021-12-18 01:37:15,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8523 to 7999. [2021-12-18 01:37:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7999 states, 5824 states have (on average 1.339629120879121) internal successors, (7802), 6016 states have internal predecessors, (7802), 1756 states have call successors, (1756), 374 states have call predecessors, (1756), 418 states have return successors, (1952), 1667 states have call predecessors, (1952), 1749 states have call successors, (1952) [2021-12-18 01:37:15,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7999 states to 7999 states and 11510 transitions. [2021-12-18 01:37:15,865 INFO L78 Accepts]: Start accepts. Automaton has 7999 states and 11510 transitions. Word has length 125 [2021-12-18 01:37:15,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:15,866 INFO L470 AbstractCegarLoop]: Abstraction has 7999 states and 11510 transitions. [2021-12-18 01:37:15,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 22 states have internal predecessors, (158), 11 states have call successors, (34), 11 states have call predecessors, (34), 12 states have return successors, (30), 14 states have call predecessors, (30), 10 states have call successors, (30) [2021-12-18 01:37:15,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7999 states and 11510 transitions. [2021-12-18 01:37:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 01:37:15,872 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:15,872 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:15,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-18 01:37:16,101 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,SelfDestructingSolverStorable8 [2021-12-18 01:37:16,102 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:16,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:16,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1946637677, now seen corresponding path program 1 times [2021-12-18 01:37:16,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:16,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441106166] [2021-12-18 01:37:16,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:16,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 01:37:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-18 01:37:16,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:16,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441106166] [2021-12-18 01:37:16,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441106166] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:37:16,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135576346] [2021-12-18 01:37:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:16,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:37:16,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:37:16,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:37:16,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 01:37:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:17,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 57 conjunts are in the unsatisfiable core [2021-12-18 01:37:17,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:37:17,540 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 [2021-12-18 01:37:17,543 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 [2021-12-18 01:37:17,771 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 19 treesize of output 7 [2021-12-18 01:37:17,774 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 19 treesize of output 7 [2021-12-18 01:37:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-18 01:37:17,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:37:17,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135576346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:17,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 01:37:17,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [23] total 29 [2021-12-18 01:37:17,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050480918] [2021-12-18 01:37:17,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:17,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 01:37:17,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:17,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 01:37:17,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2021-12-18 01:37:17,796 INFO L87 Difference]: Start difference. First operand 7999 states and 11510 transitions. Second operand has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 01:37:18,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:18,846 INFO L93 Difference]: Finished difference Result 8305 states and 11892 transitions. [2021-12-18 01:37:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 01:37:18,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2021-12-18 01:37:18,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:18,879 INFO L225 Difference]: With dead ends: 8305 [2021-12-18 01:37:18,879 INFO L226 Difference]: Without dead ends: 8043 [2021-12-18 01:37:18,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=907, Unknown=0, NotChecked=0, Total=992 [2021-12-18 01:37:18,886 INFO L933 BasicCegarLoop]: 856 mSDtfsCounter, 16 mSDsluCounter, 7416 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:18,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 8272 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 292 Invalid, 0 Unknown, 68 Unchecked, 0.8s Time] [2021-12-18 01:37:18,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8043 states. [2021-12-18 01:37:19,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8043 to 7965. [2021-12-18 01:37:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7965 states, 5802 states have (on average 1.3366080661840745) internal successors, (7755), 5989 states have internal predecessors, (7755), 1756 states have call successors, (1756), 368 states have call predecessors, (1756), 406 states have return successors, (1942), 1666 states have call predecessors, (1942), 1751 states have call successors, (1942) [2021-12-18 01:37:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7965 states to 7965 states and 11453 transitions. [2021-12-18 01:37:19,161 INFO L78 Accepts]: Start accepts. Automaton has 7965 states and 11453 transitions. Word has length 125 [2021-12-18 01:37:19,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:19,162 INFO L470 AbstractCegarLoop]: Abstraction has 7965 states and 11453 transitions. [2021-12-18 01:37:19,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 01:37:19,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7965 states and 11453 transitions. [2021-12-18 01:37:19,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 01:37:19,167 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:19,168 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:19,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 01:37:19,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:37:19,388 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:19,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:19,388 INFO L85 PathProgramCache]: Analyzing trace with hash -2013644430, now seen corresponding path program 1 times [2021-12-18 01:37:19,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:19,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099554055] [2021-12-18 01:37:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:19,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 01:37:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-18 01:37:19,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:19,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099554055] [2021-12-18 01:37:19,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099554055] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:19,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:37:19,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 01:37:19,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858550843] [2021-12-18 01:37:19,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:19,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 01:37:19,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:19,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 01:37:19,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-18 01:37:19,721 INFO L87 Difference]: Start difference. First operand 7965 states and 11453 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 01:37:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:21,719 INFO L93 Difference]: Finished difference Result 11999 states and 17322 transitions. [2021-12-18 01:37:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 01:37:21,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2021-12-18 01:37:21,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:21,751 INFO L225 Difference]: With dead ends: 11999 [2021-12-18 01:37:21,752 INFO L226 Difference]: Without dead ends: 8172 [2021-12-18 01:37:21,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-12-18 01:37:21,765 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 648 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 4911 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:21,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [652 Valid, 4911 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-18 01:37:21,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states. [2021-12-18 01:37:21,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 8045. [2021-12-18 01:37:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8045 states, 5863 states have (on average 1.3331059184717722) internal successors, (7816), 6041 states have internal predecessors, (7816), 1756 states have call successors, (1756), 368 states have call predecessors, (1756), 425 states have return successors, (1979), 1694 states have call predecessors, (1979), 1751 states have call successors, (1979) [2021-12-18 01:37:22,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8045 states to 8045 states and 11551 transitions. [2021-12-18 01:37:22,037 INFO L78 Accepts]: Start accepts. Automaton has 8045 states and 11551 transitions. Word has length 125 [2021-12-18 01:37:22,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:22,037 INFO L470 AbstractCegarLoop]: Abstraction has 8045 states and 11551 transitions. [2021-12-18 01:37:22,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 01:37:22,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8045 states and 11551 transitions. [2021-12-18 01:37:22,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 01:37:22,043 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:22,044 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:22,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 01:37:22,044 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:22,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:22,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1662844493, now seen corresponding path program 1 times [2021-12-18 01:37:22,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:22,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28498093] [2021-12-18 01:37:22,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:22,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 01:37:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-18 01:37:22,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:22,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28498093] [2021-12-18 01:37:22,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28498093] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:22,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:37:22,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-18 01:37:22,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888273085] [2021-12-18 01:37:22,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:22,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 01:37:22,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:22,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 01:37:22,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-18 01:37:22,412 INFO L87 Difference]: Start difference. First operand 8045 states and 11551 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 01:37:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:25,034 INFO L93 Difference]: Finished difference Result 15621 states and 22527 transitions. [2021-12-18 01:37:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 01:37:25,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2021-12-18 01:37:25,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:25,065 INFO L225 Difference]: With dead ends: 15621 [2021-12-18 01:37:25,065 INFO L226 Difference]: Without dead ends: 8144 [2021-12-18 01:37:25,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2021-12-18 01:37:25,087 INFO L933 BasicCegarLoop]: 824 mSDtfsCounter, 489 mSDsluCounter, 6527 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 7351 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:25,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 7351 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 2147 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 01:37:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8144 states. [2021-12-18 01:37:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8144 to 8033. [2021-12-18 01:37:25,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8033 states, 5851 states have (on average 1.3296872329516323) internal successors, (7780), 6035 states have internal predecessors, (7780), 1756 states have call successors, (1756), 368 states have call predecessors, (1756), 425 states have return successors, (1979), 1688 states have call predecessors, (1979), 1751 states have call successors, (1979) [2021-12-18 01:37:25,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8033 states to 8033 states and 11515 transitions. [2021-12-18 01:37:25,353 INFO L78 Accepts]: Start accepts. Automaton has 8033 states and 11515 transitions. Word has length 125 [2021-12-18 01:37:25,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:25,354 INFO L470 AbstractCegarLoop]: Abstraction has 8033 states and 11515 transitions. [2021-12-18 01:37:25,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 01:37:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 8033 states and 11515 transitions. [2021-12-18 01:37:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-18 01:37:25,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:25,360 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:25,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 01:37:25,360 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:25,361 INFO L85 PathProgramCache]: Analyzing trace with hash -935119689, now seen corresponding path program 1 times [2021-12-18 01:37:25,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:25,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803924565] [2021-12-18 01:37:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:25,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:37:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:37:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:37:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 01:37:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:37:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 01:37:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 01:37:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 01:37:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 01:37:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 01:37:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 01:37:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:37:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:25,560 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-18 01:37:25,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:25,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803924565] [2021-12-18 01:37:25,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803924565] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:37:25,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226342213] [2021-12-18 01:37:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:25,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:37:25,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:37:25,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:37:25,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 01:37:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:26,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 01:37:26,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:37:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-18 01:37:26,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:37:26,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226342213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:26,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 01:37:26,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2021-12-18 01:37:26,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367396953] [2021-12-18 01:37:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:26,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 01:37:26,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:26,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 01:37:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-18 01:37:26,353 INFO L87 Difference]: Start difference. First operand 8033 states and 11515 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-18 01:37:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:26,609 INFO L93 Difference]: Finished difference Result 16198 states and 23205 transitions. [2021-12-18 01:37:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 01:37:26,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 119 [2021-12-18 01:37:26,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:26,641 INFO L225 Difference]: With dead ends: 16198 [2021-12-18 01:37:26,641 INFO L226 Difference]: Without dead ends: 8143 [2021-12-18 01:37:26,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-18 01:37:26,663 INFO L933 BasicCegarLoop]: 873 mSDtfsCounter, 24 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:26,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 3448 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 01:37:26,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8143 states. [2021-12-18 01:37:26,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8143 to 8048. [2021-12-18 01:37:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8048 states, 5854 states have (on average 1.3288349846258969) internal successors, (7779), 6041 states have internal predecessors, (7779), 1768 states have call successors, (1768), 368 states have call predecessors, (1768), 425 states have return successors, (1991), 1697 states have call predecessors, (1991), 1763 states have call successors, (1991) [2021-12-18 01:37:26,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8048 states to 8048 states and 11538 transitions. [2021-12-18 01:37:26,940 INFO L78 Accepts]: Start accepts. Automaton has 8048 states and 11538 transitions. Word has length 119 [2021-12-18 01:37:26,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:26,941 INFO L470 AbstractCegarLoop]: Abstraction has 8048 states and 11538 transitions. [2021-12-18 01:37:26,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-18 01:37:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 8048 states and 11538 transitions. [2021-12-18 01:37:26,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 01:37:26,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:26,946 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:26,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 01:37:27,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:37:27,172 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:27,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:27,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1967238524, now seen corresponding path program 1 times [2021-12-18 01:37:27,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:27,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086817572] [2021-12-18 01:37:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:27,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:37:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:37:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:37:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 01:37:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:37:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 01:37:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 01:37:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 01:37:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 01:37:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 01:37:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 01:37:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 01:37:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 01:37:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-18 01:37:27,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:27,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086817572] [2021-12-18 01:37:27,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086817572] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:37:27,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539717147] [2021-12-18 01:37:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:27,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:37:27,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:37:27,432 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:37:27,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 01:37:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:28,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 01:37:28,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:37:28,228 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-18 01:37:28,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 01:37:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-18 01:37:28,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539717147] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 01:37:28,457 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 01:37:28,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-18 01:37:28,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596257125] [2021-12-18 01:37:28,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 01:37:28,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 01:37:28,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:28,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 01:37:28,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-18 01:37:28,460 INFO L87 Difference]: Start difference. First operand 8048 states and 11538 transitions. Second operand has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 8 states have internal predecessors, (150), 4 states have call successors, (43), 4 states have call predecessors, (43), 3 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2021-12-18 01:37:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:30,743 INFO L93 Difference]: Finished difference Result 21526 states and 31680 transitions. [2021-12-18 01:37:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 01:37:30,743 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 8 states have internal predecessors, (150), 4 states have call successors, (43), 4 states have call predecessors, (43), 3 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) Word has length 125 [2021-12-18 01:37:30,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:30,797 INFO L225 Difference]: With dead ends: 21526 [2021-12-18 01:37:30,797 INFO L226 Difference]: Without dead ends: 13477 [2021-12-18 01:37:30,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-12-18 01:37:30,822 INFO L933 BasicCegarLoop]: 1005 mSDtfsCounter, 960 mSDsluCounter, 6076 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 7081 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:30,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1186 Valid, 7081 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-18 01:37:30,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13477 states. [2021-12-18 01:37:31,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13477 to 13247. [2021-12-18 01:37:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13247 states, 9878 states have (on average 1.3556387932779914) internal successors, (13391), 10072 states have internal predecessors, (13391), 2968 states have call successors, (2968), 345 states have call predecessors, (2968), 400 states have return successors, (3352), 2885 states have call predecessors, (3352), 2963 states have call successors, (3352) [2021-12-18 01:37:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13247 states to 13247 states and 19711 transitions. [2021-12-18 01:37:31,276 INFO L78 Accepts]: Start accepts. Automaton has 13247 states and 19711 transitions. Word has length 125 [2021-12-18 01:37:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:31,276 INFO L470 AbstractCegarLoop]: Abstraction has 13247 states and 19711 transitions. [2021-12-18 01:37:31,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 8 states have internal predecessors, (150), 4 states have call successors, (43), 4 states have call predecessors, (43), 3 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2021-12-18 01:37:31,277 INFO L276 IsEmpty]: Start isEmpty. Operand 13247 states and 19711 transitions. [2021-12-18 01:37:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-18 01:37:31,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:31,283 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:31,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 01:37:31,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-18 01:37:31,499 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:31,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:31,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1078848019, now seen corresponding path program 1 times [2021-12-18 01:37:31,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:31,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693134703] [2021-12-18 01:37:31,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:31,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:37:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 01:37:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-18 01:37:31,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:31,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693134703] [2021-12-18 01:37:31,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693134703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:31,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:37:31,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 01:37:31,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535134812] [2021-12-18 01:37:31,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:31,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 01:37:31,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:31,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 01:37:31,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-18 01:37:31,781 INFO L87 Difference]: Start difference. First operand 13247 states and 19711 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 6 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2021-12-18 01:37:36,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:36,381 INFO L93 Difference]: Finished difference Result 19862 states and 29813 transitions. [2021-12-18 01:37:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 01:37:36,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 6 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 138 [2021-12-18 01:37:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:36,459 INFO L225 Difference]: With dead ends: 19862 [2021-12-18 01:37:36,460 INFO L226 Difference]: Without dead ends: 19857 [2021-12-18 01:37:36,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2021-12-18 01:37:36,477 INFO L933 BasicCegarLoop]: 1532 mSDtfsCounter, 2845 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 3892 mSolverCounterSat, 1487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3077 SdHoareTripleChecker+Valid, 5603 SdHoareTripleChecker+Invalid, 5379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1487 IncrementalHoareTripleChecker+Valid, 3892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:36,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3077 Valid, 5603 Invalid, 5379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1487 Valid, 3892 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-18 01:37:36,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19857 states. [2021-12-18 01:37:37,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19857 to 19667. [2021-12-18 01:37:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19667 states, 14648 states have (on average 1.3573184052430365) internal successors, (19882), 14938 states have internal predecessors, (19882), 4424 states have call successors, (4424), 501 states have call predecessors, (4424), 594 states have return successors, (5098), 4311 states have call predecessors, (5098), 4419 states have call successors, (5098) [2021-12-18 01:37:37,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19667 states to 19667 states and 29404 transitions. [2021-12-18 01:37:37,188 INFO L78 Accepts]: Start accepts. Automaton has 19667 states and 29404 transitions. Word has length 138 [2021-12-18 01:37:37,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:37,189 INFO L470 AbstractCegarLoop]: Abstraction has 19667 states and 29404 transitions. [2021-12-18 01:37:37,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 6 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2021-12-18 01:37:37,189 INFO L276 IsEmpty]: Start isEmpty. Operand 19667 states and 29404 transitions. [2021-12-18 01:37:37,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-18 01:37:37,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:37,199 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:37,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 01:37:37,199 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:37,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2115047114, now seen corresponding path program 1 times [2021-12-18 01:37:37,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:37,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430659639] [2021-12-18 01:37:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:37,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:37:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:37:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 01:37:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 01:37:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 01:37:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 01:37:37,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:37,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430659639] [2021-12-18 01:37:37,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430659639] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:37,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:37:37,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 01:37:37,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177151158] [2021-12-18 01:37:37,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:37,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 01:37:37,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:37,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 01:37:37,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-18 01:37:37,676 INFO L87 Difference]: Start difference. First operand 19667 states and 29404 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 01:37:39,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:39,497 INFO L93 Difference]: Finished difference Result 30600 states and 46030 transitions. [2021-12-18 01:37:39,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 01:37:39,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 163 [2021-12-18 01:37:39,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:39,563 INFO L225 Difference]: With dead ends: 30600 [2021-12-18 01:37:39,563 INFO L226 Difference]: Without dead ends: 17524 [2021-12-18 01:37:39,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-18 01:37:39,605 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 489 mSDsluCounter, 3140 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:39,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 3958 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-18 01:37:39,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17524 states. [2021-12-18 01:37:40,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17524 to 17388. [2021-12-18 01:37:40,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17388 states, 13007 states have (on average 1.3598831398477742) internal successors, (17688), 13299 states have internal predecessors, (17688), 3814 states have call successors, (3814), 492 states have call predecessors, (3814), 566 states have return successors, (4302), 3668 states have call predecessors, (4302), 3810 states have call successors, (4302) [2021-12-18 01:37:40,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17388 states to 17388 states and 25804 transitions. [2021-12-18 01:37:40,220 INFO L78 Accepts]: Start accepts. Automaton has 17388 states and 25804 transitions. Word has length 163 [2021-12-18 01:37:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:40,220 INFO L470 AbstractCegarLoop]: Abstraction has 17388 states and 25804 transitions. [2021-12-18 01:37:40,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 01:37:40,221 INFO L276 IsEmpty]: Start isEmpty. Operand 17388 states and 25804 transitions. [2021-12-18 01:37:40,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-18 01:37:40,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:40,231 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:40,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 01:37:40,232 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:40,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:40,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1992912483, now seen corresponding path program 1 times [2021-12-18 01:37:40,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:40,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137292855] [2021-12-18 01:37:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:40,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:37:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:37:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 01:37:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 01:37:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 01:37:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 01:37:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 01:37:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 01:37:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:40,605 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-18 01:37:40,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:40,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137292855] [2021-12-18 01:37:40,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137292855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:40,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:37:40,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 01:37:40,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098571483] [2021-12-18 01:37:40,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:40,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 01:37:40,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:40,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 01:37:40,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-18 01:37:40,608 INFO L87 Difference]: Start difference. First operand 17388 states and 25804 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 01:37:42,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:42,759 INFO L93 Difference]: Finished difference Result 29131 states and 43384 transitions. [2021-12-18 01:37:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 01:37:42,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 165 [2021-12-18 01:37:42,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:42,799 INFO L225 Difference]: With dead ends: 29131 [2021-12-18 01:37:42,799 INFO L226 Difference]: Without dead ends: 12312 [2021-12-18 01:37:42,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-18 01:37:42,842 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 337 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 3838 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:42,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 3838 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-18 01:37:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12312 states. [2021-12-18 01:37:43,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12312 to 12201. [2021-12-18 01:37:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12201 states, 9135 states have (on average 1.3581828133552272) internal successors, (12407), 9338 states have internal predecessors, (12407), 2677 states have call successors, (2677), 356 states have call predecessors, (2677), 388 states have return successors, (2947), 2551 states have call predecessors, (2947), 2668 states have call successors, (2947) [2021-12-18 01:37:43,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12201 states to 12201 states and 18031 transitions. [2021-12-18 01:37:43,253 INFO L78 Accepts]: Start accepts. Automaton has 12201 states and 18031 transitions. Word has length 165 [2021-12-18 01:37:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:43,256 INFO L470 AbstractCegarLoop]: Abstraction has 12201 states and 18031 transitions. [2021-12-18 01:37:43,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 01:37:43,256 INFO L276 IsEmpty]: Start isEmpty. Operand 12201 states and 18031 transitions. [2021-12-18 01:37:43,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-18 01:37:43,266 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:43,266 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:43,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 01:37:43,267 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:43,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:43,267 INFO L85 PathProgramCache]: Analyzing trace with hash 286562136, now seen corresponding path program 1 times [2021-12-18 01:37:43,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:43,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969352886] [2021-12-18 01:37:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:43,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:37:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:37:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 01:37:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 01:37:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:37:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 01:37:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 01:37:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 01:37:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-18 01:37:43,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:43,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969352886] [2021-12-18 01:37:43,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969352886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:43,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:37:43,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-18 01:37:43,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841996654] [2021-12-18 01:37:43,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:43,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-18 01:37:43,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:43,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-18 01:37:43,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-12-18 01:37:43,738 INFO L87 Difference]: Start difference. First operand 12201 states and 18031 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 10 states have internal predecessors, (99), 8 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2021-12-18 01:37:49,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:49,824 INFO L93 Difference]: Finished difference Result 34047 states and 50887 transitions. [2021-12-18 01:37:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-18 01:37:49,824 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 10 states have internal predecessors, (99), 8 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) Word has length 167 [2021-12-18 01:37:49,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:49,924 INFO L225 Difference]: With dead ends: 34047 [2021-12-18 01:37:49,925 INFO L226 Difference]: Without dead ends: 27626 [2021-12-18 01:37:49,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2021-12-18 01:37:49,961 INFO L933 BasicCegarLoop]: 1459 mSDtfsCounter, 3965 mSDsluCounter, 6176 mSDsCounter, 0 mSdLazyCounter, 5386 mSolverCounterSat, 2329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4182 SdHoareTripleChecker+Valid, 7635 SdHoareTripleChecker+Invalid, 7715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2329 IncrementalHoareTripleChecker+Valid, 5386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:49,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4182 Valid, 7635 Invalid, 7715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2329 Valid, 5386 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-18 01:37:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27626 states. [2021-12-18 01:37:50,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27626 to 27181. [2021-12-18 01:37:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27181 states, 20345 states have (on average 1.3644630130253133) internal successors, (27760), 20808 states have internal predecessors, (27760), 6023 states have call successors, (6023), 732 states have call predecessors, (6023), 812 states have return successors, (6647), 5746 states have call predecessors, (6647), 6008 states have call successors, (6647) [2021-12-18 01:37:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27181 states to 27181 states and 40430 transitions. [2021-12-18 01:37:50,976 INFO L78 Accepts]: Start accepts. Automaton has 27181 states and 40430 transitions. Word has length 167 [2021-12-18 01:37:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:50,976 INFO L470 AbstractCegarLoop]: Abstraction has 27181 states and 40430 transitions. [2021-12-18 01:37:50,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 10 states have internal predecessors, (99), 8 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2021-12-18 01:37:50,977 INFO L276 IsEmpty]: Start isEmpty. Operand 27181 states and 40430 transitions. [2021-12-18 01:37:50,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-18 01:37:50,987 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:50,988 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:50,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 01:37:50,988 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:50,989 INFO L85 PathProgramCache]: Analyzing trace with hash -313365581, now seen corresponding path program 1 times [2021-12-18 01:37:50,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:50,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840257113] [2021-12-18 01:37:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:50,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:37:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:37:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:37:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 01:37:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:37:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 01:37:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 01:37:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 01:37:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 01:37:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 01:37:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 01:37:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 01:37:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 01:37:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 01:37:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 01:37:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 01:37:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 01:37:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:51,283 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-18 01:37:51,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:51,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840257113] [2021-12-18 01:37:51,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840257113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:51,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:37:51,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 01:37:51,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946490380] [2021-12-18 01:37:51,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:51,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 01:37:51,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:51,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 01:37:51,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 01:37:51,288 INFO L87 Difference]: Start difference. First operand 27181 states and 40430 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 01:37:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:53,302 INFO L93 Difference]: Finished difference Result 54401 states and 80936 transitions. [2021-12-18 01:37:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 01:37:53,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2021-12-18 01:37:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:53,378 INFO L225 Difference]: With dead ends: 54401 [2021-12-18 01:37:53,378 INFO L226 Difference]: Without dead ends: 27334 [2021-12-18 01:37:53,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-12-18 01:37:53,443 INFO L933 BasicCegarLoop]: 850 mSDtfsCounter, 178 mSDsluCounter, 5093 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 5943 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:53,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 5943 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-18 01:37:53,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27334 states. [2021-12-18 01:37:54,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27334 to 27269. [2021-12-18 01:37:54,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27269 states, 20418 states have (on average 1.3631599569007737) internal successors, (27833), 20867 states have internal predecessors, (27833), 6023 states have call successors, (6023), 732 states have call predecessors, (6023), 827 states have return successors, (6704), 5775 states have call predecessors, (6704), 6008 states have call successors, (6704) [2021-12-18 01:37:54,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27269 states to 27269 states and 40560 transitions. [2021-12-18 01:37:54,470 INFO L78 Accepts]: Start accepts. Automaton has 27269 states and 40560 transitions. Word has length 164 [2021-12-18 01:37:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:54,470 INFO L470 AbstractCegarLoop]: Abstraction has 27269 states and 40560 transitions. [2021-12-18 01:37:54,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 01:37:54,471 INFO L276 IsEmpty]: Start isEmpty. Operand 27269 states and 40560 transitions. [2021-12-18 01:37:54,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-18 01:37:54,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:54,483 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:54,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 01:37:54,483 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:54,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:54,484 INFO L85 PathProgramCache]: Analyzing trace with hash 808913618, now seen corresponding path program 1 times [2021-12-18 01:37:54,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:54,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872752483] [2021-12-18 01:37:54,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:54,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:37:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:37:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:37:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 01:37:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:37:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 01:37:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 01:37:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 01:37:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 01:37:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 01:37:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 01:37:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 01:37:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 01:37:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 01:37:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 01:37:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 01:37:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 01:37:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-12-18 01:37:54,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:54,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872752483] [2021-12-18 01:37:54,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872752483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:54,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:37:54,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 01:37:54,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959962127] [2021-12-18 01:37:54,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:54,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 01:37:54,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 01:37:54,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 01:37:54,691 INFO L87 Difference]: Start difference. First operand 27269 states and 40560 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 01:37:56,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:56,134 INFO L93 Difference]: Finished difference Result 45542 states and 68154 transitions. [2021-12-18 01:37:56,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 01:37:56,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2021-12-18 01:37:56,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:56,190 INFO L225 Difference]: With dead ends: 45542 [2021-12-18 01:37:56,191 INFO L226 Difference]: Without dead ends: 18821 [2021-12-18 01:37:56,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:37:56,254 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 333 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:56,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 2703 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-18 01:37:56,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18821 states. [2021-12-18 01:37:56,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18821 to 18596. [2021-12-18 01:37:56,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18596 states, 13818 states have (on average 1.37205094803879) internal successors, (18959), 14076 states have internal predecessors, (18959), 4302 states have call successors, (4302), 428 states have call predecessors, (4302), 475 states have return successors, (4641), 4184 states have call predecessors, (4641), 4290 states have call successors, (4641) [2021-12-18 01:37:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18596 states to 18596 states and 27902 transitions. [2021-12-18 01:37:56,882 INFO L78 Accepts]: Start accepts. Automaton has 18596 states and 27902 transitions. Word has length 164 [2021-12-18 01:37:56,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:37:56,883 INFO L470 AbstractCegarLoop]: Abstraction has 18596 states and 27902 transitions. [2021-12-18 01:37:56,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 01:37:56,883 INFO L276 IsEmpty]: Start isEmpty. Operand 18596 states and 27902 transitions. [2021-12-18 01:37:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-18 01:37:56,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:37:56,891 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:37:56,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 01:37:56,891 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:37:56,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:37:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1187953787, now seen corresponding path program 1 times [2021-12-18 01:37:56,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:37:56,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450875287] [2021-12-18 01:37:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:56,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:37:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:37:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:37:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:37:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:37:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:37:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:37:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:37:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:37:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:37:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:37:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:37:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:37:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:37:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:37:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 01:37:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 01:37:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:37:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 01:37:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 01:37:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 01:37:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 01:37:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-18 01:37:57,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:37:57,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450875287] [2021-12-18 01:37:57,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450875287] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:37:57,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892533469] [2021-12-18 01:37:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:37:57,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:37:57,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:37:57,298 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) [2021-12-18 01:37:57,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 01:37:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:37:58,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 2473 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 01:37:58,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:37:58,423 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 01:37:58,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:37:58,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892533469] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:37:58,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 01:37:58,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2021-12-18 01:37:58,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295106102] [2021-12-18 01:37:58,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:37:58,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:37:58,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:37:58,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:37:58,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-12-18 01:37:58,425 INFO L87 Difference]: Start difference. First operand 18596 states and 27902 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 01:37:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:37:59,208 INFO L93 Difference]: Finished difference Result 28730 states and 44112 transitions. [2021-12-18 01:37:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:37:59,208 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), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 178 [2021-12-18 01:37:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:37:59,294 INFO L225 Difference]: With dead ends: 28730 [2021-12-18 01:37:59,294 INFO L226 Difference]: Without dead ends: 28711 [2021-12-18 01:37:59,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-18 01:37:59,311 INFO L933 BasicCegarLoop]: 1228 mSDtfsCounter, 1298 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-18 01:37:59,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1298 Valid, 2173 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 01:37:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28711 states. [2021-12-18 01:37:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28711 to 18638. [2021-12-18 01:37:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18638 states, 13846 states have (on average 1.3698541094901056) internal successors, (18967), 14104 states have internal predecessors, (18967), 4312 states have call successors, (4312), 432 states have call predecessors, (4312), 479 states have return successors, (4651), 4194 states have call predecessors, (4651), 4300 states have call successors, (4651) [2021-12-18 01:38:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18638 states to 18638 states and 27930 transitions. [2021-12-18 01:38:00,140 INFO L78 Accepts]: Start accepts. Automaton has 18638 states and 27930 transitions. Word has length 178 [2021-12-18 01:38:00,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:38:00,141 INFO L470 AbstractCegarLoop]: Abstraction has 18638 states and 27930 transitions. [2021-12-18 01:38:00,141 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), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 01:38:00,142 INFO L276 IsEmpty]: Start isEmpty. Operand 18638 states and 27930 transitions. [2021-12-18 01:38:00,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-18 01:38:00,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:38:00,149 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:38:00,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 01:38:00,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:38:00,364 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:38:00,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:38:00,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1233166492, now seen corresponding path program 1 times [2021-12-18 01:38:00,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:38:00,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165099829] [2021-12-18 01:38:00,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:38:00,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:38:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:38:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:38:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:38:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:38:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:38:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:38:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:38:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:38:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:38:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:38:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:38:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:38:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:38:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:38:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 01:38:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 01:38:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 01:38:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 01:38:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 01:38:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 01:38:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 01:38:00,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:38:00,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165099829] [2021-12-18 01:38:00,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165099829] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:38:00,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738877715] [2021-12-18 01:38:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:38:00,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:38:00,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:38:00,651 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) [2021-12-18 01:38:00,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 01:38:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:01,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 01:38:01,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:38:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 01:38:01,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:38:01,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738877715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:38:01,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 01:38:01,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2021-12-18 01:38:01,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210128644] [2021-12-18 01:38:01,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:38:01,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:38:01,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:38:01,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:38:01,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:38:01,780 INFO L87 Difference]: Start difference. First operand 18638 states and 27930 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 01:38:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:38:02,528 INFO L93 Difference]: Finished difference Result 33469 states and 50283 transitions. [2021-12-18 01:38:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:38:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 183 [2021-12-18 01:38:02,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:38:02,581 INFO L225 Difference]: With dead ends: 33469 [2021-12-18 01:38:02,581 INFO L226 Difference]: Without dead ends: 18803 [2021-12-18 01:38:02,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:38:02,615 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 692 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-18 01:38:02,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 2099 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 01:38:02,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18803 states. [2021-12-18 01:38:03,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18803 to 18638. [2021-12-18 01:38:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18638 states, 13846 states have (on average 1.3664596273291925) internal successors, (18920), 14104 states have internal predecessors, (18920), 4312 states have call successors, (4312), 432 states have call predecessors, (4312), 479 states have return successors, (4651), 4194 states have call predecessors, (4651), 4300 states have call successors, (4651) [2021-12-18 01:38:03,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18638 states to 18638 states and 27883 transitions. [2021-12-18 01:38:03,331 INFO L78 Accepts]: Start accepts. Automaton has 18638 states and 27883 transitions. Word has length 183 [2021-12-18 01:38:03,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:38:03,332 INFO L470 AbstractCegarLoop]: Abstraction has 18638 states and 27883 transitions. [2021-12-18 01:38:03,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 01:38:03,332 INFO L276 IsEmpty]: Start isEmpty. Operand 18638 states and 27883 transitions. [2021-12-18 01:38:03,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 01:38:03,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:38:03,340 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:38:03,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-18 01:38:03,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:38:03,541 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:38:03,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:38:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash 580972020, now seen corresponding path program 1 times [2021-12-18 01:38:03,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:38:03,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201379417] [2021-12-18 01:38:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:38:03,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:38:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:38:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:38:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:38:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:38:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 01:38:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:38:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 01:38:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 01:38:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 01:38:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 01:38:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 01:38:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 01:38:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 01:38:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:38:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 01:38:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 01:38:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 01:38:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 01:38:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:38:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:38:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 01:38:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:38:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-18 01:38:03,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:38:03,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201379417] [2021-12-18 01:38:03,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201379417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:38:03,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:38:03,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 01:38:03,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356777804] [2021-12-18 01:38:03,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:38:03,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 01:38:03,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:38:03,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 01:38:03,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 01:38:03,871 INFO L87 Difference]: Start difference. First operand 18638 states and 27883 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-18 01:38:06,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:38:06,001 INFO L93 Difference]: Finished difference Result 36409 states and 54864 transitions. [2021-12-18 01:38:06,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 01:38:06,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 201 [2021-12-18 01:38:06,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:38:06,048 INFO L225 Difference]: With dead ends: 36409 [2021-12-18 01:38:06,048 INFO L226 Difference]: Without dead ends: 18796 [2021-12-18 01:38:06,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-12-18 01:38:06,078 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 334 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-18 01:38:06,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 3315 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-18 01:38:06,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18796 states. [2021-12-18 01:38:06,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18796 to 18638. [2021-12-18 01:38:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18638 states, 13846 states have (on average 1.366026289180991) internal successors, (18914), 14104 states have internal predecessors, (18914), 4312 states have call successors, (4312), 432 states have call predecessors, (4312), 479 states have return successors, (4651), 4194 states have call predecessors, (4651), 4300 states have call successors, (4651) [2021-12-18 01:38:06,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18638 states to 18638 states and 27877 transitions. [2021-12-18 01:38:06,672 INFO L78 Accepts]: Start accepts. Automaton has 18638 states and 27877 transitions. Word has length 201 [2021-12-18 01:38:06,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:38:06,672 INFO L470 AbstractCegarLoop]: Abstraction has 18638 states and 27877 transitions. [2021-12-18 01:38:06,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-18 01:38:06,672 INFO L276 IsEmpty]: Start isEmpty. Operand 18638 states and 27877 transitions. [2021-12-18 01:38:06,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-18 01:38:06,679 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:38:06,679 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:38:06,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 01:38:06,679 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:38:06,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:38:06,680 INFO L85 PathProgramCache]: Analyzing trace with hash 931425485, now seen corresponding path program 1 times [2021-12-18 01:38:06,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:38:06,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569996674] [2021-12-18 01:38:06,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:38:06,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:38:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:38:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:38:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:38:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:38:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 01:38:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:38:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 01:38:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 01:38:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 01:38:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 01:38:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 01:38:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 01:38:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 01:38:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:38:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 01:38:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 01:38:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 01:38:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 01:38:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:38:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:38:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 01:38:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:38:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-18 01:38:06,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:38:06,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569996674] [2021-12-18 01:38:06,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569996674] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:38:06,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:38:06,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 01:38:06,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331774365] [2021-12-18 01:38:06,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:38:06,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 01:38:06,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:38:06,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 01:38:06,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:38:06,926 INFO L87 Difference]: Start difference. First operand 18638 states and 27877 transitions. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 5 states have internal predecessors, (126), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 01:38:09,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:38:09,511 INFO L93 Difference]: Finished difference Result 36377 states and 54833 transitions. [2021-12-18 01:38:09,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 01:38:09,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 5 states have internal predecessors, (126), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 206 [2021-12-18 01:38:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:38:09,563 INFO L225 Difference]: With dead ends: 36377 [2021-12-18 01:38:09,564 INFO L226 Difference]: Without dead ends: 18770 [2021-12-18 01:38:09,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-18 01:38:09,603 INFO L933 BasicCegarLoop]: 831 mSDtfsCounter, 484 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-18 01:38:09,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 3166 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-18 01:38:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18770 states. [2021-12-18 01:38:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18770 to 18647. [2021-12-18 01:38:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18647 states, 13855 states have (on average 1.3657885239985565) internal successors, (18923), 14113 states have internal predecessors, (18923), 4312 states have call successors, (4312), 432 states have call predecessors, (4312), 479 states have return successors, (4651), 4194 states have call predecessors, (4651), 4300 states have call successors, (4651) [2021-12-18 01:38:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18647 states to 18647 states and 27886 transitions. [2021-12-18 01:38:10,288 INFO L78 Accepts]: Start accepts. Automaton has 18647 states and 27886 transitions. Word has length 206 [2021-12-18 01:38:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:38:10,289 INFO L470 AbstractCegarLoop]: Abstraction has 18647 states and 27886 transitions. [2021-12-18 01:38:10,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 5 states have internal predecessors, (126), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 01:38:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 18647 states and 27886 transitions. [2021-12-18 01:38:10,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 01:38:10,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:38:10,296 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:38:10,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 01:38:10,296 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:38:10,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:38:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1426647189, now seen corresponding path program 1 times [2021-12-18 01:38:10,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:38:10,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329926497] [2021-12-18 01:38:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:38:10,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:38:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:38:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:38:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:38:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:38:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:38:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:38:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:38:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:38:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:38:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:38:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:38:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:38:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:38:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:38:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 01:38:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 01:38:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 01:38:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 01:38:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 01:38:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 01:38:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 01:38:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 01:38:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 01:38:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 01:38:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:10,653 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-18 01:38:10,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:38:10,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329926497] [2021-12-18 01:38:10,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329926497] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:38:10,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4655148] [2021-12-18 01:38:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:38:10,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:38:10,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:38:10,655 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:38:10,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 01:38:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:11,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 2613 conjuncts, 41 conjunts are in the unsatisfiable core [2021-12-18 01:38:11,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:38:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-18 01:38:11,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:38:11,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4655148] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:38:11,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 01:38:11,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 11 [2021-12-18 01:38:11,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576753052] [2021-12-18 01:38:11,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:38:11,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 01:38:11,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:38:11,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 01:38:11,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-18 01:38:11,769 INFO L87 Difference]: Start difference. First operand 18647 states and 27886 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 01:38:12,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:38:12,303 INFO L93 Difference]: Finished difference Result 35173 states and 52801 transitions. [2021-12-18 01:38:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 01:38:12,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 212 [2021-12-18 01:38:12,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:38:12,358 INFO L225 Difference]: With dead ends: 35173 [2021-12-18 01:38:12,358 INFO L226 Difference]: Without dead ends: 18687 [2021-12-18 01:38:12,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 262 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-18 01:38:12,400 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 2 mSDsluCounter, 5099 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5950 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:38:12,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5950 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 01:38:12,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18687 states. [2021-12-18 01:38:12,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18687 to 18655. [2021-12-18 01:38:13,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18655 states, 13863 states have (on average 1.3655053018827095) internal successors, (18930), 14117 states have internal predecessors, (18930), 4312 states have call successors, (4312), 432 states have call predecessors, (4312), 479 states have return successors, (4641), 4198 states have call predecessors, (4641), 4300 states have call successors, (4641) [2021-12-18 01:38:13,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18655 states to 18655 states and 27883 transitions. [2021-12-18 01:38:13,078 INFO L78 Accepts]: Start accepts. Automaton has 18655 states and 27883 transitions. Word has length 212 [2021-12-18 01:38:13,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:38:13,079 INFO L470 AbstractCegarLoop]: Abstraction has 18655 states and 27883 transitions. [2021-12-18 01:38:13,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 01:38:13,079 INFO L276 IsEmpty]: Start isEmpty. Operand 18655 states and 27883 transitions. [2021-12-18 01:38:13,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 01:38:13,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:38:13,086 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:38:13,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-18 01:38:13,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-18 01:38:13,287 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:38:13,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:38:13,287 INFO L85 PathProgramCache]: Analyzing trace with hash 493292852, now seen corresponding path program 2 times [2021-12-18 01:38:13,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:38:13,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331517332] [2021-12-18 01:38:13,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:38:13,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:38:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:38:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:38:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:38:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:38:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:38:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:38:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:38:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:38:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:38:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:38:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:38:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:38:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:38:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:38:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 01:38:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 01:38:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 01:38:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 01:38:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 01:38:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 01:38:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 01:38:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 01:38:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 01:38:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 01:38:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-18 01:38:13,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:38:13,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331517332] [2021-12-18 01:38:13,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331517332] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:38:13,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477740023] [2021-12-18 01:38:13,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 01:38:13,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:38:13,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:38:13,643 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:38:13,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-18 01:38:14,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 01:38:14,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 01:38:14,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 2622 conjuncts, 41 conjunts are in the unsatisfiable core [2021-12-18 01:38:14,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:38:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-18 01:38:14,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:38:14,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477740023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:38:14,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 01:38:14,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 11 [2021-12-18 01:38:14,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035238916] [2021-12-18 01:38:14,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:38:14,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 01:38:14,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:38:14,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 01:38:14,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-18 01:38:14,806 INFO L87 Difference]: Start difference. First operand 18655 states and 27883 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 01:38:15,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:38:15,431 INFO L93 Difference]: Finished difference Result 35136 states and 52724 transitions. [2021-12-18 01:38:15,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 01:38:15,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 212 [2021-12-18 01:38:15,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:38:15,484 INFO L225 Difference]: With dead ends: 35136 [2021-12-18 01:38:15,484 INFO L226 Difference]: Without dead ends: 18695 [2021-12-18 01:38:15,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 262 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-18 01:38:15,523 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 2 mSDsluCounter, 5105 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5957 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:38:15,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5957 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 01:38:15,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18695 states. [2021-12-18 01:38:16,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18695 to 18663. [2021-12-18 01:38:16,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18663 states, 13871 states have (on average 1.365294499315118) internal successors, (18938), 14121 states have internal predecessors, (18938), 4312 states have call successors, (4312), 432 states have call predecessors, (4312), 479 states have return successors, (4631), 4202 states have call predecessors, (4631), 4300 states have call successors, (4631) [2021-12-18 01:38:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18663 states to 18663 states and 27881 transitions. [2021-12-18 01:38:16,230 INFO L78 Accepts]: Start accepts. Automaton has 18663 states and 27881 transitions. Word has length 212 [2021-12-18 01:38:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:38:16,231 INFO L470 AbstractCegarLoop]: Abstraction has 18663 states and 27881 transitions. [2021-12-18 01:38:16,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 01:38:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 18663 states and 27881 transitions. [2021-12-18 01:38:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 01:38:16,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:38:16,236 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:38:16,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-18 01:38:16,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-18 01:38:16,446 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:38:16,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:38:16,446 INFO L85 PathProgramCache]: Analyzing trace with hash 506825653, now seen corresponding path program 3 times [2021-12-18 01:38:16,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:38:16,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958079049] [2021-12-18 01:38:16,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:38:16,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:38:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:38:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:38:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:38:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:38:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:38:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:38:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:38:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:38:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:38:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:38:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:38:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:38:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:38:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:38:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:38:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:38:18,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 01:38:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 01:44:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:44:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 01:44:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 01:44:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 01:44:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 01:44:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 01:44:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 01:44:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 01:44:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 01:44:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-18 01:44:24,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:44:24,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958079049] [2021-12-18 01:44:24,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958079049] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:44:24,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627931217] [2021-12-18 01:44:24,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 01:44:24,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:44:24,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:44:24,359 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:44:24,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-18 01:44:25,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-18 01:44:25,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 01:44:25,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 01:44:25,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:44:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-18 01:44:25,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:44:25,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627931217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:44:25,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 01:44:25,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 35 [2021-12-18 01:44:25,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121336037] [2021-12-18 01:44:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:44:25,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:44:25,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:44:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:44:25,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1096, Unknown=0, NotChecked=0, Total=1190 [2021-12-18 01:44:25,662 INFO L87 Difference]: Start difference. First operand 18663 states and 27881 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 01:44:26,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:44:26,173 INFO L93 Difference]: Finished difference Result 36313 states and 54512 transitions. [2021-12-18 01:44:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:44:26,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 212 [2021-12-18 01:44:26,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:44:26,223 INFO L225 Difference]: With dead ends: 36313 [2021-12-18 01:44:26,223 INFO L226 Difference]: Without dead ends: 18672 [2021-12-18 01:44:26,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=98, Invalid=1162, Unknown=0, NotChecked=0, Total=1260 [2021-12-18 01:44:26,263 INFO L933 BasicCegarLoop]: 849 mSDtfsCounter, 2 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:44:26,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2543 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 01:44:26,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18672 states. [2021-12-18 01:44:26,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18672 to 18672. [2021-12-18 01:44:26,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18672 states, 13880 states have (on average 1.3650576368876082) internal successors, (18947), 14130 states have internal predecessors, (18947), 4312 states have call successors, (4312), 432 states have call predecessors, (4312), 479 states have return successors, (4631), 4202 states have call predecessors, (4631), 4300 states have call successors, (4631) [2021-12-18 01:44:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18672 states to 18672 states and 27890 transitions. [2021-12-18 01:44:26,797 INFO L78 Accepts]: Start accepts. Automaton has 18672 states and 27890 transitions. Word has length 212 [2021-12-18 01:44:26,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:44:26,798 INFO L470 AbstractCegarLoop]: Abstraction has 18672 states and 27890 transitions. [2021-12-18 01:44:26,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 01:44:26,798 INFO L276 IsEmpty]: Start isEmpty. Operand 18672 states and 27890 transitions. [2021-12-18 01:44:26,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-18 01:44:26,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:44:26,803 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:44:26,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-18 01:44:27,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-18 01:44:27,004 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:44:27,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:44:27,004 INFO L85 PathProgramCache]: Analyzing trace with hash -194212164, now seen corresponding path program 1 times [2021-12-18 01:44:27,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:44:27,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432821946] [2021-12-18 01:44:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:44:27,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:44:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 01:44:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:44:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:44:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:44:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:44:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 01:44:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 01:44:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 01:44:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 01:44:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 01:44:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 01:44:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 01:44:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:44:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 01:44:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:29,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 01:44:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:29,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:44:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:29,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 01:44:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:44:29,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 01:44:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15