./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-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.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 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 08:30:40,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 08:30:40,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 08:30:40,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 08:30:40,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 08:30:40,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 08:30:40,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 08:30:40,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 08:30:40,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 08:30:40,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 08:30:40,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 08:30:40,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 08:30:40,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 08:30:40,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 08:30:40,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 08:30:40,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 08:30:40,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 08:30:40,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 08:30:40,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 08:30:40,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 08:30:40,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 08:30:40,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 08:30:40,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 08:30:40,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 08:30:40,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 08:30:40,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 08:30:40,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 08:30:40,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 08:30:40,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 08:30:40,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 08:30:40,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 08:30:40,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 08:30:40,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 08:30:40,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 08:30:40,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 08:30:40,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 08:30:40,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 08:30:40,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 08:30:40,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 08:30:40,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 08:30:40,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 08:30:40,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 08:30:40,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 08:30:40,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 08:30:40,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 08:30:40,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 08:30:40,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 08:30:40,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 08:30:40,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 08:30:40,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 08:30:40,625 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 08:30:40,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 08:30:40,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 08:30:40,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 08:30:40,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 08:30:40,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 08:30:40,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 08:30:40,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 08:30:40,627 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 08:30:40,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 08:30:40,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 08:30:40,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 08:30:40,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 08:30:40,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:30:40,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 08:30:40,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 08:30:40,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 08:30:40,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 08:30:40,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 08:30:40,630 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 08:30:40,630 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 08:30:40,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 08:30:40,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 08:30:40,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 [2021-12-18 08:30:40,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 08:30:40,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 08:30:40,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 08:30:40,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 08:30:40,869 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 08:30:40,870 INFO L432 ainManager$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-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-12-18 08:30:40,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23812ca5c/98dabba647f544e3a89f43bf3a831df8/FLAG16c57d956 [2021-12-18 08:30:41,639 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 08:30:41,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-12-18 08:30:41,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23812ca5c/98dabba647f544e3a89f43bf3a831df8/FLAG16c57d956 [2021-12-18 08:30:41,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23812ca5c/98dabba647f544e3a89f43bf3a831df8 [2021-12-18 08:30:41,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 08:30:41,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 08:30:41,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 08:30:41,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 08:30:41,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 08:30:41,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:30:41" (1/1) ... [2021-12-18 08:30:41,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25147ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:41, skipping insertion in model container [2021-12-18 08:30:41,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:30:41" (1/1) ... [2021-12-18 08:30:41,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 08:30:42,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 08:30:45,433 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-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2021-12-18 08:30:45,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:30:45,607 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 08:30:46,066 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-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2021-12-18 08:30:46,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:30:46,392 INFO L208 MainTranslator]: Completed translation [2021-12-18 08:30:46,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46 WrapperNode [2021-12-18 08:30:46,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 08:30:46,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 08:30:46,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 08:30:46,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 08:30:46,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:46,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:46,840 INFO L137 Inliner]: procedures = 450, calls = 6036, calls flagged for inlining = 203, calls inlined = 184, statements flattened = 11262 [2021-12-18 08:30:46,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 08:30:46,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 08:30:46,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 08:30:46,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 08:30:46,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:46,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:46,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:46,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:47,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:47,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:47,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:47,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 08:30:47,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 08:30:47,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 08:30:47,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 08:30:47,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (1/1) ... [2021-12-18 08:30:47,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:30:47,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:30:47,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 08:30:47,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 08:30:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 08:30:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 08:30:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 08:30:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 08:30:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 08:30:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 08:30:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-12-18 08:30:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-12-18 08:30:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 08:30:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 08:30:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-12-18 08:30:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-12-18 08:30:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_error_detected [2021-12-18 08:30:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_error_detected [2021-12-18 08:30:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 08:30:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 08:30:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-12-18 08:30:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-12-18 08:30:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 08:30:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 08:30:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-18 08:30:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-18 08:30:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 08:30:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 08:30:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout_task [2021-12-18 08:30:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout_task [2021-12-18 08:30:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-12-18 08:30:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-12-18 08:30:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-12-18 08:30:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-12-18 08:30:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-12-18 08:30:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-12-18 08:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-12-18 08:30:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-12-18 08:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 08:30:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 08:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_features [2021-12-18 08:30:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_features [2021-12-18 08:30:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-12-18 08:30:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-12-18 08:30:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-12-18 08:30:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-12-18 08:30:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 08:30:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 08:30:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 08:30:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 08:30:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 08:30:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 08:30:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 08:30:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 08:30:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 08:30:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 08:30:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 08:30:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-12-18 08:30:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-12-18 08:30:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 08:30:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 08:30:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-12-18 08:30:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-12-18 08:30:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 08:30:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 08:30:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 08:30:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-12-18 08:30:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-12-18 08:30:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-12-18 08:30:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-12-18 08:30:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 08:30:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 08:30:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-12-18 08:30:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-12-18 08:30:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 08:30:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-12-18 08:30:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-12-18 08:30:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2021-12-18 08:30:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2021-12-18 08:30:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-12-18 08:30:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-12-18 08:30:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 08:30:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-12-18 08:30:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-12-18 08:30:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 08:30:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 08:30:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-12-18 08:30:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-12-18 08:30:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 08:30:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 08:30:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-18 08:30:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-18 08:30:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 08:30:47,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 08:30:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-12-18 08:30:47,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-12-18 08:30:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 08:30:47,291 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 08:30:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 08:30:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 08:30:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-12-18 08:30:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-12-18 08:30:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-12-18 08:30:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-12-18 08:30:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 08:30:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 08:30:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-12-18 08:30:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-12-18 08:30:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 08:30:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-18 08:30:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-18 08:30:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 08:30:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 08:30:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 08:30:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 08:30:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 08:30:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 08:30:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-12-18 08:30:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-12-18 08:30:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-12-18 08:30:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-12-18 08:30:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-12-18 08:30:47,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-12-18 08:30:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 08:30:47,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 08:30:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-12-18 08:30:47,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-12-18 08:30:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-12-18 08:30:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-12-18 08:30:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-12-18 08:30:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-12-18 08:30:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-18 08:30:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-18 08:30:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 08:30:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 08:30:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-12-18 08:30:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-12-18 08:30:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-12-18 08:30:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-12-18 08:30:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-12-18 08:30:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-12-18 08:30:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 08:30:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 08:30:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 08:30:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 08:30:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 08:30:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 08:30:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-18 08:30:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-18 08:30:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 08:30:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 08:30:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 08:30:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 08:30:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 08:30:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 08:30:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 08:30:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 08:30:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 08:30:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 08:30:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-18 08:30:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-18 08:30:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-12-18 08:30:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-12-18 08:30:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2021-12-18 08:30:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2021-12-18 08:30:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 08:30:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 08:30:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-12-18 08:30:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-12-18 08:30:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-18 08:30:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-18 08:30:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 08:30:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 08:30:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 08:30:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 08:30:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 08:30:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 08:30:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-18 08:30:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-18 08:30:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-18 08:30:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-18 08:30:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-18 08:30:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-18 08:30:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 08:30:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-18 08:30:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-18 08:30:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 08:30:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 08:30:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 08:30:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_kill_vid [2021-12-18 08:30:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_kill_vid [2021-12-18 08:30:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-12-18 08:30:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-12-18 08:30:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 08:30:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_change_mtu [2021-12-18 08:30:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_change_mtu [2021-12-18 08:30:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-18 08:30:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-18 08:30:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-18 08:30:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-18 08:30:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 08:30:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 08:30:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 08:30:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 08:30:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-12-18 08:30:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-12-18 08:30:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-12-18 08:30:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-12-18 08:30:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_fix_features [2021-12-18 08:30:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_fix_features [2021-12-18 08:30:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 08:30:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 08:30:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-18 08:30:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-18 08:30:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 08:30:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 08:30:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_slot_reset [2021-12-18 08:30:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_slot_reset [2021-12-18 08:30:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-18 08:30:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-18 08:30:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 08:30:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 08:30:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-12-18 08:30:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-12-18 08:30:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-18 08:30:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-18 08:30:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 08:30:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 08:30:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_mac [2021-12-18 08:30:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_mac [2021-12-18 08:30:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 08:30:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-12-18 08:30:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-12-18 08:30:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 08:30:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 08:30:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-12-18 08:30:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-12-18 08:30:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-12-18 08:30:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-12-18 08:30:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 08:30:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 08:30:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 08:30:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 08:30:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-18 08:30:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-18 08:30:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-12-18 08:30:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-12-18 08:30:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-12-18 08:30:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-12-18 08:30:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-18 08:30:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-18 08:30:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-12-18 08:30:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-12-18 08:30:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-12-18 08:30:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-12-18 08:30:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-12-18 08:30:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-12-18 08:30:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 08:30:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 08:30:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-12-18 08:30:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-12-18 08:30:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-12-18 08:30:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-12-18 08:30:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-18 08:30:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-18 08:30:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 08:30:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 08:30:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_stats [2021-12-18 08:30:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_stats [2021-12-18 08:30:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-18 08:30:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-18 08:30:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 08:30:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 08:30:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 08:30:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-18 08:30:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-12-18 08:30:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-12-18 08:30:48,092 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 08:30:48,094 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 08:30:48,435 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 08:31:12,578 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 08:31:12,593 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 08:31:12,593 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 08:31:12,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:31:12 BoogieIcfgContainer [2021-12-18 08:31:12,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 08:31:12,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 08:31:12,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 08:31:12,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 08:31:12,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:30:41" (1/3) ... [2021-12-18 08:31:12,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5997736f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:31:12, skipping insertion in model container [2021-12-18 08:31:12,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:30:46" (2/3) ... [2021-12-18 08:31:12,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5997736f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:31:12, skipping insertion in model container [2021-12-18 08:31:12,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:31:12" (3/3) ... [2021-12-18 08:31:12,602 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-12-18 08:31:12,606 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 08:31:12,606 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 08:31:12,643 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 08:31:12,648 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 08:31:12,648 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 08:31:12,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 3096 states, 2096 states have (on average 1.3005725190839694) internal successors, (2726), 2129 states have internal predecessors, (2726), 871 states have call successors, (871), 128 states have call predecessors, (871), 127 states have return successors, (862), 858 states have call predecessors, (862), 862 states have call successors, (862) [2021-12-18 08:31:12,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-18 08:31:12,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:31:12,705 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2021-12-18 08:31:12,706 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:31:12,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:31:12,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1608542857, now seen corresponding path program 1 times [2021-12-18 08:31:12,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:31:12,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515044724] [2021-12-18 08:31:12,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:31:12,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:31:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:31:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:31:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:31:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:31:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:31:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:31:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:31:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:31:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 08:31:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:31:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:31:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:31:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:31:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:31:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:31:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 08:31:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:31:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-18 08:31:13,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:31:13,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515044724] [2021-12-18 08:31:13,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515044724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:31:13,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:31:13,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 08:31:13,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664623566] [2021-12-18 08:31:13,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:31:13,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:31:13,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:31:13,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:31:13,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:31:13,733 INFO L87 Difference]: Start difference. First operand has 3096 states, 2096 states have (on average 1.3005725190839694) internal successors, (2726), 2129 states have internal predecessors, (2726), 871 states have call successors, (871), 128 states have call predecessors, (871), 127 states have return successors, (862), 858 states have call predecessors, (862), 862 states have call successors, (862) Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 08:31:25,735 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 [] [2021-12-18 08:31:27,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:29,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:36,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:38,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:42,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:44,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:47,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:49,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:51,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:54,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:31:56,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:00,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:02,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:04,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:06,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:08,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:10,707 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 [] [2021-12-18 08:32:11,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:32:11,496 INFO L93 Difference]: Finished difference Result 6365 states and 9290 transitions. [2021-12-18 08:32:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 08:32:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2021-12-18 08:32:11,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:32:11,543 INFO L225 Difference]: With dead ends: 6365 [2021-12-18 08:32:11,543 INFO L226 Difference]: Without dead ends: 3235 [2021-12-18 08:32:11,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 08:32:11,601 INFO L933 BasicCegarLoop]: 4125 mSDtfsCounter, 1438 mSDsluCounter, 4877 mSDsCounter, 0 mSdLazyCounter, 4054 mSolverCounterSat, 2173 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 9002 SdHoareTripleChecker+Invalid, 6242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2173 IncrementalHoareTripleChecker+Valid, 4054 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:32:11,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1446 Valid, 9002 Invalid, 6242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2173 Valid, 4054 Invalid, 15 Unknown, 0 Unchecked, 57.1s Time] [2021-12-18 08:32:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2021-12-18 08:32:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 3057. [2021-12-18 08:32:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 2068 states have (on average 1.2886847195357833) internal successors, (2665), 2090 states have internal predecessors, (2665), 862 states have call successors, (862), 127 states have call predecessors, (862), 126 states have return successors, (860), 856 states have call predecessors, (860), 860 states have call successors, (860) [2021-12-18 08:32:11,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4387 transitions. [2021-12-18 08:32:11,858 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4387 transitions. Word has length 172 [2021-12-18 08:32:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:32:11,859 INFO L470 AbstractCegarLoop]: Abstraction has 3057 states and 4387 transitions. [2021-12-18 08:32:11,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 08:32:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4387 transitions. [2021-12-18 08:32:11,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-18 08:32:11,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:32:11,868 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2021-12-18 08:32:11,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 08:32:11,869 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:32:11,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:32:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -333627761, now seen corresponding path program 1 times [2021-12-18 08:32:11,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:32:11,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094240160] [2021-12-18 08:32:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:32:11,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:32:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:32:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:32:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:32:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:32:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:32:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:32:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:32:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:32:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 08:32:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:32:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:32:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:32:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:32:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:32:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:32:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 08:32:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:32:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-18 08:32:12,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:32:12,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094240160] [2021-12-18 08:32:12,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094240160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:32:12,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:32:12,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 08:32:12,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174157353] [2021-12-18 08:32:12,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:32:12,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 08:32:12,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:32:12,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 08:32:12,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 08:32:12,563 INFO L87 Difference]: Start difference. First operand 3057 states and 4387 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 08:32:20,959 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 [] [2021-12-18 08:32:22,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:25,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:45,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:47,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:49,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:53,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:55,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:32:57,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:01,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:03,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:05,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:13,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:15,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:17,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:20,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:24,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:26,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:28,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:30,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:32,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:34,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:39,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:41,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:43,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:45,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:49,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:51,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:53,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:56,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:57,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:33:59,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:02,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:04,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:06,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:07,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:34:07,471 INFO L93 Difference]: Finished difference Result 8892 states and 12819 transitions. [2021-12-18 08:34:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:34:07,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2021-12-18 08:34:07,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:34:07,521 INFO L225 Difference]: With dead ends: 8892 [2021-12-18 08:34:07,521 INFO L226 Difference]: Without dead ends: 5861 [2021-12-18 08:34:07,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:34:07,535 INFO L933 BasicCegarLoop]: 4878 mSDtfsCounter, 5356 mSDsluCounter, 8763 mSDsCounter, 0 mSdLazyCounter, 6825 mSolverCounterSat, 4155 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 109.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5849 SdHoareTripleChecker+Valid, 13641 SdHoareTripleChecker+Invalid, 11013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4155 IncrementalHoareTripleChecker+Valid, 6825 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.9s IncrementalHoareTripleChecker+Time [2021-12-18 08:34:07,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5849 Valid, 13641 Invalid, 11013 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4155 Valid, 6825 Invalid, 33 Unknown, 0 Unchecked, 113.9s Time] [2021-12-18 08:34:07,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5861 states. [2021-12-18 08:34:07,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5861 to 5501. [2021-12-18 08:34:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5501 states, 3702 states have (on average 1.2825499729875742) internal successors, (4748), 3740 states have internal predecessors, (4748), 1565 states have call successors, (1565), 234 states have call predecessors, (1565), 233 states have return successors, (1563), 1553 states have call predecessors, (1563), 1563 states have call successors, (1563) [2021-12-18 08:34:07,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5501 states to 5501 states and 7876 transitions. [2021-12-18 08:34:07,792 INFO L78 Accepts]: Start accepts. Automaton has 5501 states and 7876 transitions. Word has length 172 [2021-12-18 08:34:07,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:34:07,793 INFO L470 AbstractCegarLoop]: Abstraction has 5501 states and 7876 transitions. [2021-12-18 08:34:07,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 08:34:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5501 states and 7876 transitions. [2021-12-18 08:34:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-18 08:34:07,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:34:07,797 INFO L514 BasicCegarLoop]: 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, 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] [2021-12-18 08:34:07,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 08:34:07,798 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:34:07,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:34:07,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1828859180, now seen corresponding path program 1 times [2021-12-18 08:34:07,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:34:07,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366991443] [2021-12-18 08:34:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:34:07,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:34:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:34:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:34:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:34:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:34:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:34:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:34:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:34:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:34:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 08:34:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:34:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:34:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:34:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:34:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:34:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 08:34:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 08:34:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 08:34:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 08:34:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 08:34:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:34:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:34:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:34:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 08:34:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 08:34:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:34:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-12-18 08:34:08,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:34:08,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366991443] [2021-12-18 08:34:08,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366991443] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:34:08,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:34:08,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 08:34:08,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316712913] [2021-12-18 08:34:08,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:34:08,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:34:08,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:34:08,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:34:08,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 08:34:08,894 INFO L87 Difference]: Start difference. First operand 5501 states and 7876 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 08:34:17,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:19,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:21,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:36,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:38,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:40,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:46,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:48,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:50,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:55,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:34:57,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:02,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:04,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:06,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:17,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:21,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:23,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:27,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:29,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:31,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:38,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:40,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:43,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:46,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:48,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:50,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:53,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:55,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:57,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:35:59,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:01,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:04,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:36:05,292 INFO L93 Difference]: Finished difference Result 16873 states and 24278 transitions. [2021-12-18 08:36:05,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:36:05,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 221 [2021-12-18 08:36:05,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:36:05,362 INFO L225 Difference]: With dead ends: 16873 [2021-12-18 08:36:05,362 INFO L226 Difference]: Without dead ends: 11398 [2021-12-18 08:36:05,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:36:05,391 INFO L933 BasicCegarLoop]: 4934 mSDtfsCounter, 7381 mSDsluCounter, 8991 mSDsCounter, 0 mSdLazyCounter, 7013 mSolverCounterSat, 6351 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8118 SdHoareTripleChecker+Valid, 13925 SdHoareTripleChecker+Invalid, 13395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6351 IncrementalHoareTripleChecker+Valid, 7013 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.2s IncrementalHoareTripleChecker+Time [2021-12-18 08:36:05,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8118 Valid, 13925 Invalid, 13395 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6351 Valid, 7013 Invalid, 31 Unknown, 0 Unchecked, 115.2s Time] [2021-12-18 08:36:05,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11398 states. [2021-12-18 08:36:05,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11398 to 10730. [2021-12-18 08:36:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10730 states, 7226 states have (on average 1.280929975089953) internal successors, (9256), 7299 states have internal predecessors, (9256), 3043 states have call successors, (3043), 461 states have call predecessors, (3043), 460 states have return successors, (3041), 3021 states have call predecessors, (3041), 3041 states have call successors, (3041) [2021-12-18 08:36:05,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10730 states to 10730 states and 15340 transitions. [2021-12-18 08:36:05,891 INFO L78 Accepts]: Start accepts. Automaton has 10730 states and 15340 transitions. Word has length 221 [2021-12-18 08:36:05,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:36:05,892 INFO L470 AbstractCegarLoop]: Abstraction has 10730 states and 15340 transitions. [2021-12-18 08:36:05,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 08:36:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 10730 states and 15340 transitions. [2021-12-18 08:36:05,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-12-18 08:36:05,916 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:36:05,917 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:36:05,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 08:36:05,917 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:36:05,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:36:05,918 INFO L85 PathProgramCache]: Analyzing trace with hash 259802755, now seen corresponding path program 1 times [2021-12-18 08:36:05,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:36:05,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289060374] [2021-12-18 08:36:05,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:36:05,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:36:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:36:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:36:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:36:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:36:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:36:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 08:36:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:36:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:36:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:36:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:36:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:36:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 08:36:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 08:36:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 08:36:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 08:36:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 08:36:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 08:36:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 08:36:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 08:36:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:36:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 08:36:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 08:36:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 08:36:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-18 08:36:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:36:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-18 08:36:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-18 08:36:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:36:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2021-12-18 08:36:06,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:36:06,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289060374] [2021-12-18 08:36:06,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289060374] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:36:06,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:36:06,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 08:36:06,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20659975] [2021-12-18 08:36:06,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:36:06,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 08:36:06,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:36:06,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 08:36:06,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 08:36:06,805 INFO L87 Difference]: Start difference. First operand 10730 states and 15340 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:36:14,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:16,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:42,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:44,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:49,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:51,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:55,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:36:57,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:03,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:04,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:06,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:10,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:12,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:14,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:17,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:19,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:20,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:37:20,970 INFO L93 Difference]: Finished difference Result 31469 states and 45067 transitions. [2021-12-18 08:37:20,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:37:20,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 355 [2021-12-18 08:37:20,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:37:21,077 INFO L225 Difference]: With dead ends: 31469 [2021-12-18 08:37:21,078 INFO L226 Difference]: Without dead ends: 20765 [2021-12-18 08:37:21,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:37:21,125 INFO L933 BasicCegarLoop]: 4767 mSDtfsCounter, 5704 mSDsluCounter, 8804 mSDsCounter, 0 mSdLazyCounter, 6679 mSolverCounterSat, 4333 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6185 SdHoareTripleChecker+Valid, 13571 SdHoareTripleChecker+Invalid, 11025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4333 IncrementalHoareTripleChecker+Valid, 6679 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.8s IncrementalHoareTripleChecker+Time [2021-12-18 08:37:21,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6185 Valid, 13571 Invalid, 11025 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4333 Valid, 6679 Invalid, 13 Unknown, 0 Unchecked, 72.8s Time] [2021-12-18 08:37:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20765 states. [2021-12-18 08:37:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20765 to 19450. [2021-12-18 08:37:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19450 states, 13146 states have (on average 1.277803134033166) internal successors, (16798), 13269 states have internal predecessors, (16798), 5425 states have call successors, (5425), 879 states have call predecessors, (5425), 878 states have return successors, (5423), 5389 states have call predecessors, (5423), 5423 states have call successors, (5423) [2021-12-18 08:37:22,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19450 states to 19450 states and 27646 transitions. [2021-12-18 08:37:22,077 INFO L78 Accepts]: Start accepts. Automaton has 19450 states and 27646 transitions. Word has length 355 [2021-12-18 08:37:22,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:37:22,077 INFO L470 AbstractCegarLoop]: Abstraction has 19450 states and 27646 transitions. [2021-12-18 08:37:22,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:37:22,078 INFO L276 IsEmpty]: Start isEmpty. Operand 19450 states and 27646 transitions. [2021-12-18 08:37:22,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-12-18 08:37:22,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:37:22,088 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:37:22,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 08:37:22,089 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:37:22,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:37:22,090 INFO L85 PathProgramCache]: Analyzing trace with hash 838719141, now seen corresponding path program 1 times [2021-12-18 08:37:22,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:37:22,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403181701] [2021-12-18 08:37:22,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:37:22,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:37:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:37:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:37:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:37:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:37:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:37:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 08:37:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:37:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:37:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:37:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:37:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:37:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 08:37:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 08:37:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 08:37:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 08:37:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 08:37:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 08:37:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 08:37:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:37:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 08:37:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 08:37:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 08:37:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 08:37:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:22,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 08:37:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:23,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:37:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:37:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:23,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:37:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:23,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-18 08:37:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 08:37:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:37:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-12-18 08:37:23,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:37:23,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403181701] [2021-12-18 08:37:23,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403181701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:37:23,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:37:23,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:37:23,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027880328] [2021-12-18 08:37:23,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:37:23,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:37:23,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:37:23,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:37:23,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:37:23,031 INFO L87 Difference]: Start difference. First operand 19450 states and 27646 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 08:37:32,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:34,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:50,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:37:52,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:17,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:19,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:26,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:28,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:30,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:33,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:35,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:40,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:42,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:45,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:47,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:51,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:38:53,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:01,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:06,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:08,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:13,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:15,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:17,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:19,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:25,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:29,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:31,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:33,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:39:35,831 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 [] [2021-12-18 08:39:37,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:37,787 INFO L93 Difference]: Finished difference Result 51272 states and 73365 transitions. [2021-12-18 08:39:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 08:39:37,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 343 [2021-12-18 08:39:37,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:37,909 INFO L225 Difference]: With dead ends: 51272 [2021-12-18 08:39:37,909 INFO L226 Difference]: Without dead ends: 31853 [2021-12-18 08:39:37,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-18 08:39:37,966 INFO L933 BasicCegarLoop]: 7691 mSDtfsCounter, 4357 mSDsluCounter, 15769 mSDsCounter, 0 mSdLazyCounter, 11967 mSolverCounterSat, 2021 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 23460 SdHoareTripleChecker+Invalid, 14014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2021 IncrementalHoareTripleChecker+Valid, 11967 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.8s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:37,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5177 Valid, 23460 Invalid, 14014 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2021 Valid, 11967 Invalid, 26 Unknown, 0 Unchecked, 132.8s Time] [2021-12-18 08:39:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31853 states. [2021-12-18 08:39:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31853 to 29203. [2021-12-18 08:39:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29203 states, 19753 states have (on average 1.2776287146256264) internal successors, (25237), 19946 states have internal predecessors, (25237), 8126 states have call successors, (8126), 1320 states have call predecessors, (8126), 1323 states have return successors, (8136), 8070 states have call predecessors, (8136), 8124 states have call successors, (8136) [2021-12-18 08:39:39,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29203 states to 29203 states and 41499 transitions. [2021-12-18 08:39:39,387 INFO L78 Accepts]: Start accepts. Automaton has 29203 states and 41499 transitions. Word has length 343 [2021-12-18 08:39:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:39,388 INFO L470 AbstractCegarLoop]: Abstraction has 29203 states and 41499 transitions. [2021-12-18 08:39:39,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 08:39:39,388 INFO L276 IsEmpty]: Start isEmpty. Operand 29203 states and 41499 transitions. [2021-12-18 08:39:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-18 08:39:39,404 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:39,404 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:39:39,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 08:39:39,405 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:39,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:39,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1571403000, now seen corresponding path program 1 times [2021-12-18 08:39:39,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:39,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495271933] [2021-12-18 08:39:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:39,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:39:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:39:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:39:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 08:39:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:39:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:39:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:39:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:39:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:39:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 08:39:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 08:39:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 08:39:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 08:39:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 08:39:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 08:39:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 08:39:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 08:39:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 08:39:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 08:39:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 08:39:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 08:39:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 08:39:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 08:39:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2021-12-18 08:39:40,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:40,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495271933] [2021-12-18 08:39:40,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495271933] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:40,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:39:40,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:39:40,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546861235] [2021-12-18 08:39:40,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:40,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:39:40,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:40,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:39:40,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:39:40,452 INFO L87 Difference]: Start difference. First operand 29203 states and 41499 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 08:39:50,176 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 [] [2021-12-18 08:39:52,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:08,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:10,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:34,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:36,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:43,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:45,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:49,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:53,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:55,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:40:58,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:00,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:10,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:12,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:14,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:16,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:19,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:25,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:27,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:29,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:34,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:36,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:41:38,436 INFO L93 Difference]: Finished difference Result 71675 states and 102467 transitions. [2021-12-18 08:41:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 08:41:38,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 356 [2021-12-18 08:41:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:41:38,664 INFO L225 Difference]: With dead ends: 71675 [2021-12-18 08:41:38,664 INFO L226 Difference]: Without dead ends: 42503 [2021-12-18 08:41:38,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-18 08:41:38,748 INFO L933 BasicCegarLoop]: 7172 mSDtfsCounter, 5723 mSDsluCounter, 15010 mSDsCounter, 0 mSdLazyCounter, 10606 mSolverCounterSat, 5110 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6544 SdHoareTripleChecker+Valid, 22182 SdHoareTripleChecker+Invalid, 15736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5110 IncrementalHoareTripleChecker+Valid, 10606 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.7s IncrementalHoareTripleChecker+Time [2021-12-18 08:41:38,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6544 Valid, 22182 Invalid, 15736 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5110 Valid, 10606 Invalid, 20 Unknown, 0 Unchecked, 115.7s Time] [2021-12-18 08:41:38,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42503 states. [2021-12-18 08:41:40,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42503 to 38964. [2021-12-18 08:41:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38964 states, 26368 states have (on average 1.2774575242718447) internal successors, (33684), 26623 states have internal predecessors, (33684), 10827 states have call successors, (10827), 1765 states have call predecessors, (10827), 1768 states have return successors, (10837), 10755 states have call predecessors, (10837), 10825 states have call successors, (10837) [2021-12-18 08:41:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38964 states to 38964 states and 55348 transitions. [2021-12-18 08:41:40,476 INFO L78 Accepts]: Start accepts. Automaton has 38964 states and 55348 transitions. Word has length 356 [2021-12-18 08:41:40,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:41:40,477 INFO L470 AbstractCegarLoop]: Abstraction has 38964 states and 55348 transitions. [2021-12-18 08:41:40,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 08:41:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 38964 states and 55348 transitions. [2021-12-18 08:41:40,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-12-18 08:41:40,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:41:40,494 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:41:40,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 08:41:40,495 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:41:40,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:41:40,495 INFO L85 PathProgramCache]: Analyzing trace with hash -114862830, now seen corresponding path program 1 times [2021-12-18 08:41:40,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:41:40,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314450782] [2021-12-18 08:41:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:41:40,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:41:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:41:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:41:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:41:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:41:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:41:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 08:41:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:41:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:41:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:41:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:41:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:41:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 08:41:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 08:41:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 08:41:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 08:41:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 08:41:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 08:41:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 08:41:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:41:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 08:41:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 08:41:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 08:41:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 08:41:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-18 08:41:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:41:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:41:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:41:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 08:41:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-18 08:41:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:41:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2021-12-18 08:41:41,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:41:41,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314450782] [2021-12-18 08:41:41,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314450782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:41:41,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:41:41,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:41:41,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10630999] [2021-12-18 08:41:41,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:41:41,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:41:41,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:41:41,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:41:41,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:41:41,915 INFO L87 Difference]: Start difference. First operand 38964 states and 55348 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 08:41:48,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:41:50,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:06,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:08,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:11,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:15,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:17,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:22,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:25,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:26,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:29,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:32,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:42:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:42:32,907 INFO L93 Difference]: Finished difference Result 42499 states and 60959 transitions. [2021-12-18 08:42:32,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 08:42:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 367 [2021-12-18 08:42:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:42:32,911 INFO L225 Difference]: With dead ends: 42499 [2021-12-18 08:42:32,911 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 08:42:33,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-18 08:42:33,014 INFO L933 BasicCegarLoop]: 3943 mSDtfsCounter, 5050 mSDsluCounter, 5081 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 3056 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5597 SdHoareTripleChecker+Valid, 9024 SdHoareTripleChecker+Invalid, 6751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3056 IncrementalHoareTripleChecker+Valid, 3685 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.6s IncrementalHoareTripleChecker+Time [2021-12-18 08:42:33,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5597 Valid, 9024 Invalid, 6751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3056 Valid, 3685 Invalid, 10 Unknown, 0 Unchecked, 49.6s Time] [2021-12-18 08:42:33,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 08:42:33,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 08:42:33,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 08:42:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 08:42:33,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 367 [2021-12-18 08:42:33,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:42:33,025 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 08:42:33,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 08:42:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 08:42:33,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 08:42:33,029 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 08:42:33,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 08:42:33,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15