./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.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 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:43:39,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:43:39,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:43:39,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:43:39,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:43:39,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:43:39,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:43:39,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:43:39,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:43:39,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:43:39,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:43:39,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:43:39,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:43:39,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:43:39,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:43:39,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:43:39,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:43:39,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:43:39,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:43:39,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:43:39,296 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:43:39,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:43:39,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:43:39,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:43:39,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:43:39,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:43:39,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:43:39,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:43:39,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:43:39,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:43:39,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:43:39,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:43:39,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:43:39,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:43:39,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:43:39,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:43:39,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:43:39,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:43:39,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:43:39,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:43:39,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:43:39,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:43:39,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:43:39,338 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:43:39,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:43:39,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:43:39,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:43:39,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:43:39,339 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:43:39,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:43:39,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:43:39,340 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:43:39,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:43:39,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:43:39,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:43:39,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:43:39,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:43:39,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:43:39,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:43:39,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:43:39,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:43:39,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:43:39,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:43:39,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:43:39,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:43:39,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:43:39,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:43:39,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:43:39,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:43:39,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:43:39,343 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:43:39,344 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:43:39,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:43:39,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2022-07-12 13:43:39,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:43:39,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:43:39,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:43:39,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:43:39,570 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:43:39,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-07-12 13:43:39,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b134c4ba/aa69ed311820434f8470f99afd65e713/FLAG7fb57b2f1 [2022-07-12 13:43:40,249 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:43:40,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-07-12 13:43:40,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b134c4ba/aa69ed311820434f8470f99afd65e713/FLAG7fb57b2f1 [2022-07-12 13:43:40,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b134c4ba/aa69ed311820434f8470f99afd65e713 [2022-07-12 13:43:40,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:43:40,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:43:40,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:43:40,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:43:40,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:43:40,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:43:40" (1/1) ... [2022-07-12 13:43:40,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4891ff95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:40, skipping insertion in model container [2022-07-12 13:43:40,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:43:40" (1/1) ... [2022-07-12 13:43:40,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:43:40,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:43:41,540 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2022-07-12 13:43:41,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:43:41,668 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:43:41,922 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2022-07-12 13:43:41,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:43:42,009 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:43:42,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42 WrapperNode [2022-07-12 13:43:42,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:43:42,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:43:42,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:43:42,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:43:42,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,198 INFO L137 Inliner]: procedures = 258, calls = 2260, calls flagged for inlining = 96, calls inlined = 93, statements flattened = 6022 [2022-07-12 13:43:42,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:43:42,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:43:42,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:43:42,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:43:42,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:43:42,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:43:42,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:43:42,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:43:42,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (1/1) ... [2022-07-12 13:43:42,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:43:42,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:43:42,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 13:43:42,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 13:43:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:43:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:43:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:43:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:43:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2022-07-12 13:43:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2022-07-12 13:43:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-07-12 13:43:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-07-12 13:43:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpctl_mutex [2022-07-12 13:43:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpctl_mutex [2022-07-12 13:43:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:43:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:43:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_GetIocState [2022-07-12 13:43:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_GetIocState [2022-07-12 13:43:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-07-12 13:43:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-07-12 13:43:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-07-12 13:43:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-07-12 13:43:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:43:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:43:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:43:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_syscall_down [2022-07-12 13:43:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_syscall_down [2022-07-12 13:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_device_driver_deregister [2022-07-12 13:43:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_device_driver_deregister [2022-07-12 13:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 13:43:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 13:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_remove [2022-07-12 13:43:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_remove [2022-07-12 13:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:43:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:43:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame [2022-07-12 13:43:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame [2022-07-12 13:43:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 13:43:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 13:43:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 13:43:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 13:43:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 13:43:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 13:43:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure __mptctl_ioctl [2022-07-12 13:43:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __mptctl_ioctl [2022-07-12 13:43:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_mpt_command [2022-07-12 13:43:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_mpt_command [2022-07-12 13:43:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_fw_download [2022-07-12 13:43:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_fw_download [2022-07-12 13:43:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:43:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:43:42,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2022-07-12 13:43:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2022-07-12 13:43:42,485 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame_hi_pri [2022-07-12 13:43:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame_hi_pri [2022-07-12 13:43:42,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 13:43:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 13:43:42,486 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 13:43:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 13:43:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_fw_memory [2022-07-12 13:43:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_fw_memory [2022-07-12 13:43:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_taskmgmt [2022-07-12 13:43:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_taskmgmt [2022-07-12 13:43:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 13:43:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 13:43:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:43:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:43:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_clear_taskmgmt_in_progress_flag [2022-07-12 13:43:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_clear_taskmgmt_in_progress_flag [2022-07-12 13:43:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_timeout_expired [2022-07-12 13:43:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_timeout_expired [2022-07-12 13:43:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-12 13:43:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-12 13:43:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 13:43:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 13:43:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 13:43:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 13:43:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpctl_mutex [2022-07-12 13:43:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpctl_mutex [2022-07-12 13:43:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_fasync [2022-07-12 13:43:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_fasync [2022-07-12 13:43:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 13:43:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 13:43:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-07-12 13:43:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-07-12 13:43:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 13:43:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_set_taskmgmt_in_progress_flag [2022-07-12 13:43:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_set_taskmgmt_in_progress_flag [2022-07-12 13:43:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 13:43:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 13:43:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_verify_adapter [2022-07-12 13:43:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_verify_adapter [2022-07-12 13:43:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 13:43:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 13:43:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 13:43:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 13:43:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 13:43:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 13:43:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 13:43:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_deregister [2022-07-12 13:43:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_deregister [2022-07-12 13:43:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_sgl [2022-07-12 13:43:42,494 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_sgl [2022-07-12 13:43:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:43:42,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:43:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:43:42,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:43:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:43:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:43:42,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:43:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 13:43:42,495 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 13:43:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:43:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 13:43:42,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 13:43:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:43:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_get_msg_frame [2022-07-12 13:43:42,496 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_get_msg_frame [2022-07-12 13:43:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 13:43:42,497 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 13:43:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2022-07-12 13:43:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2022-07-12 13:43:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_send_handshake_request [2022-07-12 13:43:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_send_handshake_request [2022-07-12 13:43:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_register [2022-07-12 13:43:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_register [2022-07-12 13:43:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2022-07-12 13:43:42,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2022-07-12 13:43:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-07-12 13:43:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-07-12 13:43:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 13:43:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-12 13:43:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:43:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:43:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_config [2022-07-12 13:43:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_config [2022-07-12 13:43:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_msg_frame [2022-07-12 13:43:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_msg_frame [2022-07-12 13:43:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 13:43:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 13:43:43,021 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:43:43,024 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:43:44,936 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:43:52,590 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:43:52,602 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:43:52,602 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 13:43:52,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:43:52 BoogieIcfgContainer [2022-07-12 13:43:52,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:43:52,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:43:52,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:43:52,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:43:52,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:43:40" (1/3) ... [2022-07-12 13:43:52,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75434ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:43:52, skipping insertion in model container [2022-07-12 13:43:52,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:43:42" (2/3) ... [2022-07-12 13:43:52,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75434ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:43:52, skipping insertion in model container [2022-07-12 13:43:52,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:43:52" (3/3) ... [2022-07-12 13:43:52,613 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-07-12 13:43:52,622 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:43:52,623 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:43:52,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:43:52,689 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@543b4a01, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@37350dba [2022-07-12 13:43:52,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:43:52,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 1383 states, 1052 states have (on average 1.435361216730038) internal successors, (1510), 1072 states have internal predecessors, (1510), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) [2022-07-12 13:43:52,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 13:43:52,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:43:52,704 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:43:52,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:43:52,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:43:52,708 INFO L85 PathProgramCache]: Analyzing trace with hash -806038929, now seen corresponding path program 1 times [2022-07-12 13:43:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:43:52,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819621276] [2022-07-12 13:43:52,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:43:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:43:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:43:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:43:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:43:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:43:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:43:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:43:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:43:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:43:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:43:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 13:43:53,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:43:53,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819621276] [2022-07-12 13:43:53,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819621276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:43:53,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:43:53,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 13:43:53,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619671788] [2022-07-12 13:43:53,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:43:53,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 13:43:53,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:43:53,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 13:43:53,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 13:43:53,329 INFO L87 Difference]: Start difference. First operand has 1383 states, 1052 states have (on average 1.435361216730038) internal successors, (1510), 1072 states have internal predecessors, (1510), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 13:43:54,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:43:57,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:43:59,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:01,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:04,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:06,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:09,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:11,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:13,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:14,847 INFO L93 Difference]: Finished difference Result 2812 states and 4246 transitions. [2022-07-12 13:44:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 13:44:14,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-07-12 13:44:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:14,864 INFO L225 Difference]: With dead ends: 2812 [2022-07-12 13:44:14,864 INFO L226 Difference]: Without dead ends: 1421 [2022-07-12 13:44:14,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:14,883 INFO L413 NwaCegarLoop]: 1947 mSDtfsCounter, 522 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 638 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:44:14,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 3823 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 1185 Invalid, 5 Unknown, 0 Unchecked, 21.3s Time] [2022-07-12 13:44:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2022-07-12 13:44:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1370. [2022-07-12 13:44:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1045 states have (on average 1.4095693779904306) internal successors, (1473), 1059 states have internal predecessors, (1473), 263 states have call successors, (263), 62 states have call predecessors, (263), 61 states have return successors, (252), 251 states have call predecessors, (252), 252 states have call successors, (252) [2022-07-12 13:44:15,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1988 transitions. [2022-07-12 13:44:15,010 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1988 transitions. Word has length 119 [2022-07-12 13:44:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:15,011 INFO L495 AbstractCegarLoop]: Abstraction has 1370 states and 1988 transitions. [2022-07-12 13:44:15,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 13:44:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1988 transitions. [2022-07-12 13:44:15,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 13:44:15,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:15,017 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:44:15,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 13:44:15,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:15,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:15,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1515762989, now seen corresponding path program 1 times [2022-07-12 13:44:15,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:15,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853340653] [2022-07-12 13:44:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:15,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:44:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:44:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:44:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:44:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:44:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:44:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:44:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:44:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:15,362 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 13:44:15,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:15,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853340653] [2022-07-12 13:44:15,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853340653] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:15,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:44:15,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:44:15,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834290117] [2022-07-12 13:44:15,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:15,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:44:15,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:15,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:44:15,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:15,365 INFO L87 Difference]: Start difference. First operand 1370 states and 1988 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-12 13:44:17,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:19,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:22,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:25,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:26,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:26,699 INFO L93 Difference]: Finished difference Result 2871 states and 4167 transitions. [2022-07-12 13:44:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:44:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2022-07-12 13:44:26,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:26,707 INFO L225 Difference]: With dead ends: 2871 [2022-07-12 13:44:26,707 INFO L226 Difference]: Without dead ends: 1527 [2022-07-12 13:44:26,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:44:26,711 INFO L413 NwaCegarLoop]: 1960 mSDtfsCounter, 979 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 1005 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:44:26,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4371 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1005 Valid, 1159 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2022-07-12 13:44:26,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2022-07-12 13:44:26,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1455. [2022-07-12 13:44:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1109 states have (on average 1.4021641118124437) internal successors, (1555), 1124 states have internal predecessors, (1555), 273 states have call successors, (273), 73 states have call predecessors, (273), 72 states have return successors, (262), 260 states have call predecessors, (262), 262 states have call successors, (262) [2022-07-12 13:44:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2090 transitions. [2022-07-12 13:44:26,752 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2090 transitions. Word has length 119 [2022-07-12 13:44:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:26,755 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 2090 transitions. [2022-07-12 13:44:26,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-12 13:44:26,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2090 transitions. [2022-07-12 13:44:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-12 13:44:26,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:26,762 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-07-12 13:44:26,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 13:44:26,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:26,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:26,763 INFO L85 PathProgramCache]: Analyzing trace with hash -291305680, now seen corresponding path program 1 times [2022-07-12 13:44:26,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:26,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138156547] [2022-07-12 13:44:26,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:26,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:44:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:44:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:44:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:44:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:44:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:44:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:44:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:27,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:44:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:44:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:27,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 13:44:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 13:44:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 13:44:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:27,056 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-07-12 13:44:27,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:27,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138156547] [2022-07-12 13:44:27,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138156547] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:27,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:44:27,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:44:27,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831100358] [2022-07-12 13:44:27,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:27,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:44:27,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:27,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:44:27,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:27,059 INFO L87 Difference]: Start difference. First operand 1455 states and 2090 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:44:29,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:31,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:33,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:36,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:38,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:40,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:43,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:45,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:46,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:46,097 INFO L93 Difference]: Finished difference Result 4059 states and 5868 transitions. [2022-07-12 13:44:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:44:46,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2022-07-12 13:44:46,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:46,108 INFO L225 Difference]: With dead ends: 4059 [2022-07-12 13:44:46,108 INFO L226 Difference]: Without dead ends: 2644 [2022-07-12 13:44:46,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:44:46,112 INFO L413 NwaCegarLoop]: 2172 mSDtfsCounter, 2350 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 1237 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 5492 SdHoareTripleChecker+Invalid, 3404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1237 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:44:46,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 5492 Invalid, 3404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1237 Valid, 2162 Invalid, 5 Unknown, 0 Unchecked, 18.8s Time] [2022-07-12 13:44:46,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2022-07-12 13:44:46,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2526. [2022-07-12 13:44:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 1939 states have (on average 1.400206291903043) internal successors, (2715), 1957 states have internal predecessors, (2715), 459 states have call successors, (459), 128 states have call predecessors, (459), 127 states have return successors, (448), 446 states have call predecessors, (448), 448 states have call successors, (448) [2022-07-12 13:44:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 3622 transitions. [2022-07-12 13:44:46,166 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 3622 transitions. Word has length 138 [2022-07-12 13:44:46,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:46,167 INFO L495 AbstractCegarLoop]: Abstraction has 2526 states and 3622 transitions. [2022-07-12 13:44:46,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:44:46,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 3622 transitions. [2022-07-12 13:44:46,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 13:44:46,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:46,169 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:44:46,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 13:44:46,169 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:46,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:46,170 INFO L85 PathProgramCache]: Analyzing trace with hash -139107950, now seen corresponding path program 1 times [2022-07-12 13:44:46,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:46,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926313950] [2022-07-12 13:44:46,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:46,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:44:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:44:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:44:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:44:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:44:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:44:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:44:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:44:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:44:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:44:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 13:44:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-12 13:44:46,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926313950] [2022-07-12 13:44:46,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926313950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:46,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:44:46,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:44:46,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794137641] [2022-07-12 13:44:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:46,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:44:46,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:46,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:44:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:46,407 INFO L87 Difference]: Start difference. First operand 2526 states and 3622 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:44:49,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:52,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:44:54,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:54,827 INFO L93 Difference]: Finished difference Result 2906 states and 4144 transitions. [2022-07-12 13:44:54,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:44:54,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 163 [2022-07-12 13:44:54,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:54,842 INFO L225 Difference]: With dead ends: 2906 [2022-07-12 13:44:54,842 INFO L226 Difference]: Without dead ends: 2903 [2022-07-12 13:44:54,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:44:54,845 INFO L413 NwaCegarLoop]: 2052 mSDtfsCounter, 2315 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 1226 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1226 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:44:54,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2479 Valid, 3509 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1226 Valid, 886 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-07-12 13:44:54,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2022-07-12 13:44:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2760. [2022-07-12 13:44:54,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 2105 states have (on average 1.3890736342042755) internal successors, (2924), 2126 states have internal predecessors, (2924), 495 states have call successors, (495), 160 states have call predecessors, (495), 159 states have return successors, (485), 482 states have call predecessors, (485), 485 states have call successors, (485) [2022-07-12 13:44:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3904 transitions. [2022-07-12 13:44:54,937 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3904 transitions. Word has length 163 [2022-07-12 13:44:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:54,938 INFO L495 AbstractCegarLoop]: Abstraction has 2760 states and 3904 transitions. [2022-07-12 13:44:54,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:44:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3904 transitions. [2022-07-12 13:44:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-12 13:44:54,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:54,939 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:44:54,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 13:44:54,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:54,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:54,940 INFO L85 PathProgramCache]: Analyzing trace with hash -18690541, now seen corresponding path program 1 times [2022-07-12 13:44:54,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:54,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331416560] [2022-07-12 13:44:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:54,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:44:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:44:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:44:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:44:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:44:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:44:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:44:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:44:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:44:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:44:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 13:44:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-12 13:44:55,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:55,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331416560] [2022-07-12 13:44:55,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331416560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:55,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:44:55,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:44:55,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919633502] [2022-07-12 13:44:55,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:55,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:44:55,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:55,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:44:55,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:55,173 INFO L87 Difference]: Start difference. First operand 2760 states and 3904 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:44:58,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:01,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:05,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:45:05,443 INFO L93 Difference]: Finished difference Result 2905 states and 4142 transitions. [2022-07-12 13:45:05,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:45:05,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 164 [2022-07-12 13:45:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:45:05,453 INFO L225 Difference]: With dead ends: 2905 [2022-07-12 13:45:05,453 INFO L226 Difference]: Without dead ends: 2902 [2022-07-12 13:45:05,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:45:05,455 INFO L413 NwaCegarLoop]: 2045 mSDtfsCounter, 2298 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 1208 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1208 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:45:05,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 3509 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1208 Valid, 887 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-07-12 13:45:05,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2022-07-12 13:45:05,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 2759. [2022-07-12 13:45:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2759 states, 2105 states have (on average 1.3885985748218528) internal successors, (2923), 2125 states have internal predecessors, (2923), 494 states have call successors, (494), 160 states have call predecessors, (494), 159 states have return successors, (485), 482 states have call predecessors, (485), 485 states have call successors, (485) [2022-07-12 13:45:05,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 3902 transitions. [2022-07-12 13:45:05,524 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 3902 transitions. Word has length 164 [2022-07-12 13:45:05,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:45:05,524 INFO L495 AbstractCegarLoop]: Abstraction has 2759 states and 3902 transitions. [2022-07-12 13:45:05,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:45:05,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 3902 transitions. [2022-07-12 13:45:05,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-12 13:45:05,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:45:05,526 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:45:05,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 13:45:05,526 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:45:05,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:45:05,526 INFO L85 PathProgramCache]: Analyzing trace with hash -580713291, now seen corresponding path program 1 times [2022-07-12 13:45:05,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:45:05,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770511475] [2022-07-12 13:45:05,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:45:05,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:45:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:45:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:45:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:45:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:45:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:45:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:45:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:45:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:45:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:45:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:45:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:45:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:45:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:45:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:45:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 13:45:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:05,750 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-12 13:45:05,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:45:05,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770511475] [2022-07-12 13:45:05,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770511475] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:45:05,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:45:05,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:45:05,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782287739] [2022-07-12 13:45:05,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:45:05,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:45:05,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:45:05,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:45:05,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:45:05,752 INFO L87 Difference]: Start difference. First operand 2759 states and 3902 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:45:08,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:10,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:11,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:13,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:15,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:16,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:18,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:22,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:24,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:26,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:29,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:31,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:33,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:36,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:38,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:40,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:42,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:44,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:45,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:45:45,080 INFO L93 Difference]: Finished difference Result 2934 states and 4167 transitions. [2022-07-12 13:45:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:45:45,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 165 [2022-07-12 13:45:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:45:45,090 INFO L225 Difference]: With dead ends: 2934 [2022-07-12 13:45:45,091 INFO L226 Difference]: Without dead ends: 2930 [2022-07-12 13:45:45,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:45:45,093 INFO L413 NwaCegarLoop]: 1911 mSDtfsCounter, 741 mSDsluCounter, 3986 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 651 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 5897 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:45:45,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 5897 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2243 Invalid, 12 Unknown, 0 Unchecked, 39.2s Time] [2022-07-12 13:45:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-07-12 13:45:45,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2787. [2022-07-12 13:45:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2124 states have (on average 1.384180790960452) internal successors, (2940), 2142 states have internal predecessors, (2940), 496 states have call successors, (496), 167 states have call predecessors, (496), 166 states have return successors, (489), 486 states have call predecessors, (489), 489 states have call successors, (489) [2022-07-12 13:45:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3925 transitions. [2022-07-12 13:45:45,190 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3925 transitions. Word has length 165 [2022-07-12 13:45:45,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:45:45,191 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 3925 transitions. [2022-07-12 13:45:45,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:45:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3925 transitions. [2022-07-12 13:45:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-12 13:45:45,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:45:45,193 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:45:45,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 13:45:45,193 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:45:45,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:45:45,193 INFO L85 PathProgramCache]: Analyzing trace with hash -823544490, now seen corresponding path program 1 times [2022-07-12 13:45:45,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:45:45,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543101837] [2022-07-12 13:45:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:45:45,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:45:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:45:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:45:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:45:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:45:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:45:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:45:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:45:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:45:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:45:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:45:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:45:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:45:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:45:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:45:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 13:45:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-12 13:45:45,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:45:45,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543101837] [2022-07-12 13:45:45,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543101837] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:45:45,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:45:45,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:45:45,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275737192] [2022-07-12 13:45:45,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:45:45,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:45:45,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:45:45,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:45:45,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:45:45,435 INFO L87 Difference]: Start difference. First operand 2787 states and 3925 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:45:47,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:49,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:52,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:53,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:55,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:00,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:02,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:05,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:08,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:10,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:13,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:13,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:46:13,568 INFO L93 Difference]: Finished difference Result 7911 states and 11270 transitions. [2022-07-12 13:46:13,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:46:13,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 166 [2022-07-12 13:46:13,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:46:13,596 INFO L225 Difference]: With dead ends: 7911 [2022-07-12 13:46:13,596 INFO L226 Difference]: Without dead ends: 5164 [2022-07-12 13:46:13,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:46:13,609 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2024 mSDsluCounter, 4719 mSDsCounter, 0 mSdLazyCounter, 3015 mSolverCounterSat, 1054 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 7221 SdHoareTripleChecker+Invalid, 4076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1054 IncrementalHoareTripleChecker+Valid, 3015 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-07-12 13:46:13,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 7221 Invalid, 4076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1054 Valid, 3015 Invalid, 7 Unknown, 0 Unchecked, 27.9s Time] [2022-07-12 13:46:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5164 states. [2022-07-12 13:46:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5164 to 4925. [2022-07-12 13:46:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4925 states, 3772 states have (on average 1.3830858960763521) internal successors, (5217), 3808 states have internal predecessors, (5217), 865 states have call successors, (865), 294 states have call predecessors, (865), 287 states have return successors, (892), 834 states have call predecessors, (892), 855 states have call successors, (892) [2022-07-12 13:46:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4925 states to 4925 states and 6974 transitions. [2022-07-12 13:46:13,863 INFO L78 Accepts]: Start accepts. Automaton has 4925 states and 6974 transitions. Word has length 166 [2022-07-12 13:46:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:46:13,864 INFO L495 AbstractCegarLoop]: Abstraction has 4925 states and 6974 transitions. [2022-07-12 13:46:13,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:46:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 4925 states and 6974 transitions. [2022-07-12 13:46:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-12 13:46:13,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:46:13,866 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:46:13,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 13:46:13,866 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:46:13,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:46:13,867 INFO L85 PathProgramCache]: Analyzing trace with hash 238627800, now seen corresponding path program 1 times [2022-07-12 13:46:13,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:46:13,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32809027] [2022-07-12 13:46:13,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:46:13,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:46:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:46:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:46:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:46:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:46:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:46:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:46:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:46:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:46:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:46:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:46:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:46:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 13:46:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-12 13:46:14,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:46:14,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32809027] [2022-07-12 13:46:14,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32809027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:46:14,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:46:14,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:46:14,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773560857] [2022-07-12 13:46:14,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:46:14,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:46:14,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:46:14,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:46:14,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:46:14,062 INFO L87 Difference]: Start difference. First operand 4925 states and 6974 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:46:16,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:18,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:20,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:22,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:26,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:28,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:31,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:34,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:36,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:36,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:46:36,471 INFO L93 Difference]: Finished difference Result 5128 states and 7319 transitions. [2022-07-12 13:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:46:36,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 167 [2022-07-12 13:46:36,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:46:36,487 INFO L225 Difference]: With dead ends: 5128 [2022-07-12 13:46:36,487 INFO L226 Difference]: Without dead ends: 5101 [2022-07-12 13:46:36,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:46:36,490 INFO L413 NwaCegarLoop]: 1928 mSDtfsCounter, 2216 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 745 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 3753 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 745 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:46:36,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 3753 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [745 Valid, 1209 Invalid, 6 Unknown, 0 Unchecked, 22.2s Time] [2022-07-12 13:46:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5101 states. [2022-07-12 13:46:36,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5101 to 4900. [2022-07-12 13:46:36,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 3755 states have (on average 1.3829560585885485) internal successors, (5193), 3790 states have internal predecessors, (5193), 860 states have call successors, (860), 291 states have call predecessors, (860), 284 states have return successors, (888), 830 states have call predecessors, (888), 851 states have call successors, (888) [2022-07-12 13:46:36,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 6941 transitions. [2022-07-12 13:46:36,650 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 6941 transitions. Word has length 167 [2022-07-12 13:46:36,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:46:36,651 INFO L495 AbstractCegarLoop]: Abstraction has 4900 states and 6941 transitions. [2022-07-12 13:46:36,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:46:36,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 6941 transitions. [2022-07-12 13:46:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 13:46:36,654 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:46:36,654 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 13:46:36,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 13:46:36,654 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:46:36,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:46:36,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1755941157, now seen corresponding path program 1 times [2022-07-12 13:46:36,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:46:36,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621103357] [2022-07-12 13:46:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:46:36,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:46:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:46:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:46:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:46:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:46:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:46:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:46:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:46:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:46:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:46:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:46:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:46:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 13:46:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 13:46:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:46:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-12 13:46:36,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:46:36,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621103357] [2022-07-12 13:46:36,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621103357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:46:36,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:46:36,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:46:36,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669544502] [2022-07-12 13:46:36,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:46:36,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:46:36,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:46:36,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:46:36,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:46:36,865 INFO L87 Difference]: Start difference. First operand 4900 states and 6941 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 13:46:40,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:42,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:47,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:49,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:51,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:53,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:57,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:59,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:47:00,192 INFO L93 Difference]: Finished difference Result 7924 states and 11212 transitions. [2022-07-12 13:47:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:47:00,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 187 [2022-07-12 13:47:00,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:47:00,212 INFO L225 Difference]: With dead ends: 7924 [2022-07-12 13:47:00,213 INFO L226 Difference]: Without dead ends: 3062 [2022-07-12 13:47:00,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:47:00,228 INFO L413 NwaCegarLoop]: 1763 mSDtfsCounter, 1771 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 4556 mSolverCounterSat, 959 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 5521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 959 IncrementalHoareTripleChecker+Valid, 4556 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:47:00,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1947 Valid, 2752 Invalid, 5521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [959 Valid, 4556 Invalid, 6 Unknown, 0 Unchecked, 23.1s Time] [2022-07-12 13:47:00,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-07-12 13:47:00,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2928. [2022-07-12 13:47:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2928 states, 2230 states have (on average 1.3717488789237668) internal successors, (3059), 2252 states have internal predecessors, (3059), 513 states have call successors, (513), 189 states have call predecessors, (513), 184 states have return successors, (523), 494 states have call predecessors, (523), 504 states have call successors, (523) [2022-07-12 13:47:00,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 4095 transitions. [2022-07-12 13:47:00,304 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 4095 transitions. Word has length 187 [2022-07-12 13:47:00,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:47:00,305 INFO L495 AbstractCegarLoop]: Abstraction has 2928 states and 4095 transitions. [2022-07-12 13:47:00,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 13:47:00,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 4095 transitions. [2022-07-12 13:47:00,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-12 13:47:00,307 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:47:00,307 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 13:47:00,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 13:47:00,308 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:47:00,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:47:00,308 INFO L85 PathProgramCache]: Analyzing trace with hash -520232844, now seen corresponding path program 1 times [2022-07-12 13:47:00,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:47:00,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756035806] [2022-07-12 13:47:00,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:47:00,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:47:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:47:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:47:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:47:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:47:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:47:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:47:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:47:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:47:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:47:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:47:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:47:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:47:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:47:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:47:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 13:47:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 13:47:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 13:47:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 13:47:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:00,585 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 13:47:00,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:47:00,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756035806] [2022-07-12 13:47:00,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756035806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:47:00,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:47:00,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:47:00,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831092930] [2022-07-12 13:47:00,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:47:00,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:47:00,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:47:00,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:47:00,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:47:00,587 INFO L87 Difference]: Start difference. First operand 2928 states and 4095 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:47:02,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:04,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:09,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:11,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:14,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:15,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:18,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:20,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:21,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:47:21,308 INFO L93 Difference]: Finished difference Result 3189 states and 4524 transitions. [2022-07-12 13:47:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 13:47:21,314 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 194 [2022-07-12 13:47:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:47:21,335 INFO L225 Difference]: With dead ends: 3189 [2022-07-12 13:47:21,336 INFO L226 Difference]: Without dead ends: 3186 [2022-07-12 13:47:21,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-07-12 13:47:21,338 INFO L413 NwaCegarLoop]: 1811 mSDtfsCounter, 4073 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 3678 mSolverCounterSat, 2591 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 6274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2591 IncrementalHoareTripleChecker+Valid, 3678 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:47:21,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4146 Valid, 2663 Invalid, 6274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2591 Valid, 3678 Invalid, 5 Unknown, 0 Unchecked, 20.4s Time] [2022-07-12 13:47:21,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2022-07-12 13:47:21,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2927. [2022-07-12 13:47:21,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2230 states have (on average 1.3708520179372197) internal successors, (3057), 2251 states have internal predecessors, (3057), 512 states have call successors, (512), 189 states have call predecessors, (512), 184 states have return successors, (523), 494 states have call predecessors, (523), 504 states have call successors, (523) [2022-07-12 13:47:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 4092 transitions. [2022-07-12 13:47:21,422 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 4092 transitions. Word has length 194 [2022-07-12 13:47:21,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:47:21,423 INFO L495 AbstractCegarLoop]: Abstraction has 2927 states and 4092 transitions. [2022-07-12 13:47:21,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:47:21,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 4092 transitions. [2022-07-12 13:47:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-07-12 13:47:21,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:47:21,428 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:47:21,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 13:47:21,428 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:47:21,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:47:21,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2019393053, now seen corresponding path program 1 times [2022-07-12 13:47:21,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:47:21,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484508496] [2022-07-12 13:47:21,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:47:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:47:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:47:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:47:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:47:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:47:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:47:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:47:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 13:47:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:47:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 13:47:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:47:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:47:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:47:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:47:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:47:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 13:47:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 13:47:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 13:47:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 13:47:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:47:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 13:47:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:47:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:47:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 13:47:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-12 13:47:21,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:47:21,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484508496] [2022-07-12 13:47:21,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484508496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:47:21,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:47:21,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 13:47:21,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889890089] [2022-07-12 13:47:21,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:47:21,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 13:47:21,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:47:21,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 13:47:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:47:21,730 INFO L87 Difference]: Start difference. First operand 2927 states and 4092 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 13:47:25,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:27,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:29,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:37,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:39,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:41,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:43,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:45,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:50,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:52,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:55,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:58,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:48:02,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:48:04,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:48:06,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []