./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.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 fd18c623be1f9191aaeb26a7b3c18eeb579e4f661e34cc28939d56ae6edd64a3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 00:38:17,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 00:38:17,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 00:38:17,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 00:38:17,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 00:38:17,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 00:38:17,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 00:38:17,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 00:38:17,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 00:38:17,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 00:38:17,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 00:38:17,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 00:38:17,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 00:38:17,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 00:38:17,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 00:38:17,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 00:38:17,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 00:38:17,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 00:38:17,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 00:38:17,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 00:38:17,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 00:38:17,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 00:38:17,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 00:38:18,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 00:38:18,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 00:38:18,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 00:38:18,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 00:38:18,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 00:38:18,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 00:38:18,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 00:38:18,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 00:38:18,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 00:38:18,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 00:38:18,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 00:38:18,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 00:38:18,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 00:38:18,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 00:38:18,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 00:38:18,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 00:38:18,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 00:38:18,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 00:38:18,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 00:38:18,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 00:38:18,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 00:38:18,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 00:38:18,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 00:38:18,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 00:38:18,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 00:38:18,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 00:38:18,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 00:38:18,037 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 00:38:18,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 00:38:18,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 00:38:18,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 00:38:18,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 00:38:18,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 00:38:18,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 00:38:18,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 00:38:18,039 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 00:38:18,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 00:38:18,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 00:38:18,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 00:38:18,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 00:38:18,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 00:38:18,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 00:38:18,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 00:38:18,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 00:38:18,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 00:38:18,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 00:38:18,041 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 00:38:18,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 00:38:18,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 00:38:18,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 00:38:18,042 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd18c623be1f9191aaeb26a7b3c18eeb579e4f661e34cc28939d56ae6edd64a3 [2021-11-17 00:38:18,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 00:38:18,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 00:38:18,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 00:38:18,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 00:38:18,305 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 00:38:18,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-11-17 00:38:18,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44630f794/98ebae2661df4e888e72843f13672878/FLAG8bec641ec [2021-11-17 00:38:19,122 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 00:38:19,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-11-17 00:38:19,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44630f794/98ebae2661df4e888e72843f13672878/FLAG8bec641ec [2021-11-17 00:38:19,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44630f794/98ebae2661df4e888e72843f13672878 [2021-11-17 00:38:19,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 00:38:19,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 00:38:19,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 00:38:19,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 00:38:19,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 00:38:19,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:38:19" (1/1) ... [2021-11-17 00:38:19,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61880ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:19, skipping insertion in model container [2021-11-17 00:38:19,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:38:19" (1/1) ... [2021-11-17 00:38:19,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 00:38:19,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 00:38:20,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i[164502,164515] [2021-11-17 00:38:20,626 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 00:38:20,652 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 00:38:20,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i[164502,164515] [2021-11-17 00:38:20,951 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 00:38:21,072 INFO L208 MainTranslator]: Completed translation [2021-11-17 00:38:21,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21 WrapperNode [2021-11-17 00:38:21,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 00:38:21,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 00:38:21,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 00:38:21,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 00:38:21,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,300 INFO L137 Inliner]: procedures = 267, calls = 1404, calls flagged for inlining = 132, calls inlined = 127, statements flattened = 3464 [2021-11-17 00:38:21,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 00:38:21,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 00:38:21,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 00:38:21,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 00:38:21,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 00:38:21,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 00:38:21,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 00:38:21,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 00:38:21,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (1/1) ... [2021-11-17 00:38:21,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 00:38:21,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 00:38:21,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 00:38:21,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 00:38:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 00:38:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 00:38:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 00:38:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 00:38:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2021-11-17 00:38:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2021-11-17 00:38:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_mac_address [2021-11-17 00:38:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_mac_address [2021-11-17 00:38:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2021-11-17 00:38:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2021-11-17 00:38:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-11-17 00:38:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-11-17 00:38:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 00:38:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 00:38:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-17 00:38:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-17 00:38:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 00:38:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 00:38:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-11-17 00:38:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-11-17 00:38:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 00:38:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 00:38:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 00:38:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 00:38:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2021-11-17 00:38:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2021-11-17 00:38:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 00:38:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 00:38:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-11-17 00:38:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-11-17 00:38:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 00:38:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 00:38:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 00:38:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 00:38:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2021-11-17 00:38:21,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2021-11-17 00:38:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 00:38:21,618 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 00:38:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 00:38:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 00:38:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 00:38:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2021-11-17 00:38:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2021-11-17 00:38:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-17 00:38:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-17 00:38:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-17 00:38:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2021-11-17 00:38:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2021-11-17 00:38:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 00:38:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 00:38:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 00:38:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_wren [2021-11-17 00:38:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_wren [2021-11-17 00:38:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-17 00:38:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-17 00:38:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 00:38:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 00:38:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 00:38:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 00:38:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-17 00:38:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 00:38:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 00:38:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 00:38:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 00:38:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_eeprom_release [2021-11-17 00:38:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_eeprom_release [2021-11-17 00:38:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-11-17 00:38:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-11-17 00:38:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-17 00:38:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-17 00:38:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 00:38:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 00:38:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 00:38:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 00:38:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 00:38:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 00:38:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 00:38:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 00:38:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 00:38:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 00:38:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_irq [2021-11-17 00:38:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_irq [2021-11-17 00:38:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 00:38:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 00:38:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 00:38:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_enable [2021-11-17 00:38:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_enable [2021-11-17 00:38:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-17 00:38:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-17 00:38:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 00:38:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 00:38:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 00:38:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-17 00:38:21,629 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-17 00:38:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 00:38:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 00:38:21,630 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 00:38:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2021-11-17 00:38:21,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2021-11-17 00:38:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-11-17 00:38:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-11-17 00:38:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-11-17 00:38:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-11-17 00:38:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 00:38:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 00:38:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-11-17 00:38:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-11-17 00:38:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_eeprom_claim [2021-11-17 00:38:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_eeprom_claim [2021-11-17 00:38:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2021-11-17 00:38:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2021-11-17 00:38:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 00:38:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-17 00:38:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-17 00:38:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 00:38:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 00:38:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2021-11-17 00:38:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2021-11-17 00:38:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-11-17 00:38:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-11-17 00:38:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2021-11-17 00:38:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2021-11-17 00:38:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 00:38:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2021-11-17 00:38:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2021-11-17 00:38:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 00:38:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-17 00:38:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-17 00:38:21,644 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 00:38:21,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 00:38:21,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 00:38:21,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 00:38:21,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 00:38:21,644 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-11-17 00:38:21,645 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-11-17 00:38:21,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-11-17 00:38:21,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-11-17 00:38:21,645 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 00:38:21,645 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 00:38:21,645 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_ioctl [2021-11-17 00:38:21,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_ioctl [2021-11-17 00:38:21,645 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 00:38:21,646 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 00:38:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 00:38:21,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 00:38:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 00:38:21,646 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 00:38:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2021-11-17 00:38:21,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2021-11-17 00:38:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2021-11-17 00:38:21,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2021-11-17 00:38:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 00:38:21,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 00:38:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 00:38:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2021-11-17 00:38:21,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2021-11-17 00:38:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2021-11-17 00:38:21,647 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2021-11-17 00:38:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 00:38:21,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 00:38:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 00:38:21,648 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 00:38:22,250 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 00:38:22,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 00:38:22,471 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 00:38:45,473 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 00:38:45,495 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 00:38:45,496 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-17 00:38:45,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:38:45 BoogieIcfgContainer [2021-11-17 00:38:45,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 00:38:45,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 00:38:45,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 00:38:45,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 00:38:45,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:38:19" (1/3) ... [2021-11-17 00:38:45,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83d09ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:38:45, skipping insertion in model container [2021-11-17 00:38:45,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:38:21" (2/3) ... [2021-11-17 00:38:45,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83d09ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:38:45, skipping insertion in model container [2021-11-17 00:38:45,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:38:45" (3/3) ... [2021-11-17 00:38:45,506 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-11-17 00:38:45,511 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 00:38:45,511 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 00:38:45,562 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 00:38:45,602 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 00:38:45,602 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 00:38:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 1166 states, 828 states have (on average 1.3707729468599035) internal successors, (1135), 849 states have internal predecessors, (1135), 267 states have call successors, (267), 72 states have call predecessors, (267), 71 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) [2021-11-17 00:38:45,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-17 00:38:45,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:38:45,693 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:38:45,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:38:45,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:38:45,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1826626141, now seen corresponding path program 1 times [2021-11-17 00:38:45,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:38:45,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277422568] [2021-11-17 00:38:45,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:38:45,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:38:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:38:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:38:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:46,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:38:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:46,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:38:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:38:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:38:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-17 00:38:46,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:38:46,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277422568] [2021-11-17 00:38:46,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277422568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:38:46,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:38:46,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 00:38:46,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125359979] [2021-11-17 00:38:46,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:38:46,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 00:38:46,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:38:46,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 00:38:46,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 00:38:46,508 INFO L87 Difference]: Start difference. First operand has 1166 states, 828 states have (on average 1.3707729468599035) internal successors, (1135), 849 states have internal predecessors, (1135), 267 states have call successors, (267), 72 states have call predecessors, (267), 71 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-17 00:38:48,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:38:50,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:38:55,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:38:55,270 INFO L93 Difference]: Finished difference Result 3535 states and 5169 transitions. [2021-11-17 00:38:55,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 00:38:55,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-11-17 00:38:55,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:38:55,305 INFO L225 Difference]: With dead ends: 3535 [2021-11-17 00:38:55,305 INFO L226 Difference]: Without dead ends: 2346 [2021-11-17 00:38:55,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 00:38:55,323 INFO L933 BasicCegarLoop]: 1828 mSDtfsCounter, 1952 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 616 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 4082 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-17 00:38:55,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2121 Valid, 4082 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 819 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2021-11-17 00:38:55,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-11-17 00:38:55,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2244. [2021-11-17 00:38:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1605 states have (on average 1.3532710280373832) internal successors, (2172), 1619 states have internal predecessors, (2172), 498 states have call successors, (498), 141 states have call predecessors, (498), 140 states have return successors, (497), 495 states have call predecessors, (497), 497 states have call successors, (497) [2021-11-17 00:38:55,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3167 transitions. [2021-11-17 00:38:55,520 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3167 transitions. Word has length 56 [2021-11-17 00:38:55,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:38:55,521 INFO L470 AbstractCegarLoop]: Abstraction has 2244 states and 3167 transitions. [2021-11-17 00:38:55,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-17 00:38:55,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3167 transitions. [2021-11-17 00:38:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-17 00:38:55,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:38:55,529 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:38:55,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 00:38:55,532 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:38:55,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:38:55,533 INFO L85 PathProgramCache]: Analyzing trace with hash -78533526, now seen corresponding path program 1 times [2021-11-17 00:38:55,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:38:55,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719874111] [2021-11-17 00:38:55,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:38:55,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:38:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:38:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:38:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:38:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:38:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:55,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:38:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:55,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:38:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:38:55,941 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-17 00:38:55,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:38:55,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719874111] [2021-11-17 00:38:55,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719874111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:38:55,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:38:55,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 00:38:55,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566177293] [2021-11-17 00:38:55,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:38:55,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 00:38:55,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:38:55,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 00:38:55,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 00:38:55,945 INFO L87 Difference]: Start difference. First operand 2244 states and 3167 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-17 00:38:57,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:39:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:39:04,801 INFO L93 Difference]: Finished difference Result 6893 states and 9861 transitions. [2021-11-17 00:39:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:39:04,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-11-17 00:39:04,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:39:04,829 INFO L225 Difference]: With dead ends: 6893 [2021-11-17 00:39:04,830 INFO L226 Difference]: Without dead ends: 4658 [2021-11-17 00:39:04,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-17 00:39:04,842 INFO L933 BasicCegarLoop]: 1792 mSDtfsCounter, 1968 mSDsluCounter, 5472 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 618 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 7264 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-17 00:39:04,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2135 Valid, 7264 Invalid, 1936 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [618 Valid, 1317 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2021-11-17 00:39:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-11-17 00:39:04,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4492. [2021-11-17 00:39:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 3212 states have (on average 1.3530510585305107) internal successors, (4346), 3248 states have internal predecessors, (4346), 989 states have call successors, (989), 281 states have call predecessors, (989), 290 states have return successors, (1059), 986 states have call predecessors, (1059), 988 states have call successors, (1059) [2021-11-17 00:39:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 6394 transitions. [2021-11-17 00:39:05,023 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 6394 transitions. Word has length 58 [2021-11-17 00:39:05,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:39:05,024 INFO L470 AbstractCegarLoop]: Abstraction has 4492 states and 6394 transitions. [2021-11-17 00:39:05,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-17 00:39:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 6394 transitions. [2021-11-17 00:39:05,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-17 00:39:05,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:39:05,041 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:39:05,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 00:39:05,042 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:39:05,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:39:05,043 INFO L85 PathProgramCache]: Analyzing trace with hash -115610240, now seen corresponding path program 1 times [2021-11-17 00:39:05,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:39:05,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029067755] [2021-11-17 00:39:05,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:39:05,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:39:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:39:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:39:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:39:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:39:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:39:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:39:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 00:39:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:39:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 00:39:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 00:39:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 00:39:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 00:39:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 00:39:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 00:39:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 00:39:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:39:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 00:39:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 00:39:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 00:39:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 00:39:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:39:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:39:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:39:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:39:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:39:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 00:39:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 00:39:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 00:39:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 00:39:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:06,516 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-11-17 00:39:06,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:39:06,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029067755] [2021-11-17 00:39:06,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029067755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:39:06,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:39:06,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-17 00:39:06,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028857128] [2021-11-17 00:39:06,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:39:06,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 00:39:06,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:39:06,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 00:39:06,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-17 00:39:06,523 INFO L87 Difference]: Start difference. First operand 4492 states and 6394 transitions. Second operand has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (35), 7 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 00:39:08,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:39:23,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:39:23,492 INFO L93 Difference]: Finished difference Result 13116 states and 18794 transitions. [2021-11-17 00:39:23,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-17 00:39:23,493 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (35), 7 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 260 [2021-11-17 00:39:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:39:23,540 INFO L225 Difference]: With dead ends: 13116 [2021-11-17 00:39:23,541 INFO L226 Difference]: Without dead ends: 8640 [2021-11-17 00:39:23,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2021-11-17 00:39:23,561 INFO L933 BasicCegarLoop]: 1676 mSDtfsCounter, 2315 mSDsluCounter, 11700 mSDsCounter, 0 mSdLazyCounter, 3730 mSolverCounterSat, 1184 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 13376 SdHoareTripleChecker+Invalid, 4915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1184 IncrementalHoareTripleChecker+Valid, 3730 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-11-17 00:39:23,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2475 Valid, 13376 Invalid, 4915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1184 Valid, 3730 Invalid, 1 Unknown, 0 Unchecked, 14.8s Time] [2021-11-17 00:39:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8640 states. [2021-11-17 00:39:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8640 to 8214. [2021-11-17 00:39:23,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 5862 states have (on average 1.3512453087683385) internal successors, (7921), 5938 states have internal predecessors, (7921), 1795 states have call successors, (1795), 529 states have call predecessors, (1795), 556 states have return successors, (1944), 1786 states have call predecessors, (1944), 1794 states have call successors, (1944) [2021-11-17 00:39:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 11660 transitions. [2021-11-17 00:39:23,872 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 11660 transitions. Word has length 260 [2021-11-17 00:39:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:39:23,874 INFO L470 AbstractCegarLoop]: Abstraction has 8214 states and 11660 transitions. [2021-11-17 00:39:23,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (35), 7 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 00:39:23,874 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 11660 transitions. [2021-11-17 00:39:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-17 00:39:23,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:39:23,884 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:39:23,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 00:39:23,885 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:39:23,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:39:23,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2122450921, now seen corresponding path program 1 times [2021-11-17 00:39:23,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:39:23,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128424274] [2021-11-17 00:39:23,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:39:23,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:39:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:39:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:39:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:39:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:39:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:39:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:39:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 00:39:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 00:39:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:39:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:39:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 00:39:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 00:39:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 00:39:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 00:39:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 00:39:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 00:39:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 00:39:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 00:39:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:39:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 00:39:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 00:39:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:39:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:39:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:39:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:39:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:39:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 00:39:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:39:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:39:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 00:39:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 00:39:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-11-17 00:39:24,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:39:24,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128424274] [2021-11-17 00:39:24,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128424274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:39:24,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:39:24,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 00:39:24,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725848558] [2021-11-17 00:39:24,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:39:24,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 00:39:24,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:39:24,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 00:39:24,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:39:24,881 INFO L87 Difference]: Start difference. First operand 8214 states and 11660 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 00:39:26,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:39:35,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:39:35,003 INFO L93 Difference]: Finished difference Result 23816 states and 33768 transitions. [2021-11-17 00:39:35,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 00:39:35,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 283 [2021-11-17 00:39:35,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:39:35,081 INFO L225 Difference]: With dead ends: 23816 [2021-11-17 00:39:35,081 INFO L226 Difference]: Without dead ends: 15618 [2021-11-17 00:39:35,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-17 00:39:35,112 INFO L933 BasicCegarLoop]: 1883 mSDtfsCounter, 2308 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 1122 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2487 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1122 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-17 00:39:35,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2487 Valid, 4910 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1122 Valid, 1537 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-11-17 00:39:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15618 states. [2021-11-17 00:39:35,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15618 to 14984. [2021-11-17 00:39:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14984 states, 10626 states have (on average 1.3345567476002258) internal successors, (14181), 10768 states have internal predecessors, (14181), 3305 states have call successors, (3305), 1007 states have call predecessors, (3305), 1052 states have return successors, (3556), 3288 states have call predecessors, (3556), 3304 states have call successors, (3556) [2021-11-17 00:39:35,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14984 states to 14984 states and 21042 transitions. [2021-11-17 00:39:35,676 INFO L78 Accepts]: Start accepts. Automaton has 14984 states and 21042 transitions. Word has length 283 [2021-11-17 00:39:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:39:35,677 INFO L470 AbstractCegarLoop]: Abstraction has 14984 states and 21042 transitions. [2021-11-17 00:39:35,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 00:39:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 14984 states and 21042 transitions. [2021-11-17 00:39:35,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-17 00:39:35,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:39:35,694 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:39:35,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 00:39:35,694 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:39:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:39:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash 244991795, now seen corresponding path program 1 times [2021-11-17 00:39:35,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:39:35,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227566283] [2021-11-17 00:39:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:39:35,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:39:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:39:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:35,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:39:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:39:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:39:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:39:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:39:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 00:39:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:39:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:39:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:39:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:39:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:39:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:39:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:39:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:39:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:39:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 00:39:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:39:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:39:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 00:39:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 00:39:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 00:39:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:39:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 00:39:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:39:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:39:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 00:39:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:39:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-17 00:39:36,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:39:36,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227566283] [2021-11-17 00:39:36,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227566283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:39:36,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:39:36,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 00:39:36,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168713466] [2021-11-17 00:39:36,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:39:36,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 00:39:36,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:39:36,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 00:39:36,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 00:39:36,799 INFO L87 Difference]: Start difference. First operand 14984 states and 21042 transitions. Second operand has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:39:38,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:39:40,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:39:42,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:39:45,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:39:58,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:39:58,657 INFO L93 Difference]: Finished difference Result 38925 states and 55664 transitions. [2021-11-17 00:39:58,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 00:39:58,659 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 281 [2021-11-17 00:39:58,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:39:58,818 INFO L225 Difference]: With dead ends: 38925 [2021-11-17 00:39:58,818 INFO L226 Difference]: Without dead ends: 31348 [2021-11-17 00:39:58,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2021-11-17 00:39:58,882 INFO L933 BasicCegarLoop]: 2369 mSDtfsCounter, 3132 mSDsluCounter, 7996 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 1869 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3332 SdHoareTripleChecker+Valid, 10365 SdHoareTripleChecker+Invalid, 5208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1869 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-11-17 00:39:58,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3332 Valid, 10365 Invalid, 5208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1869 Valid, 3335 Invalid, 4 Unknown, 0 Unchecked, 20.8s Time] [2021-11-17 00:39:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31348 states. [2021-11-17 00:39:59,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31348 to 29910. [2021-11-17 00:39:59,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29910 states, 21202 states have (on average 1.3352985567399303) internal successors, (28311), 21550 states have internal predecessors, (28311), 6603 states have call successors, (6603), 2013 states have call predecessors, (6603), 2104 states have return successors, (7106), 6506 states have call predecessors, (7106), 6602 states have call successors, (7106) [2021-11-17 00:40:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29910 states to 29910 states and 42020 transitions. [2021-11-17 00:40:00,096 INFO L78 Accepts]: Start accepts. Automaton has 29910 states and 42020 transitions. Word has length 281 [2021-11-17 00:40:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:40:00,098 INFO L470 AbstractCegarLoop]: Abstraction has 29910 states and 42020 transitions. [2021-11-17 00:40:00,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:40:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 29910 states and 42020 transitions. [2021-11-17 00:40:00,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-17 00:40:00,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:40:00,126 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:40:00,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 00:40:00,127 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:40:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:40:00,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2146259090, now seen corresponding path program 1 times [2021-11-17 00:40:00,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:40:00,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604629944] [2021-11-17 00:40:00,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:40:00,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:40:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:40:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:40:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:40:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:40:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:40:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 00:40:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:40:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:40:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:40:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:40:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:40:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:40:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:40:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 00:40:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 00:40:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:00,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 00:40:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 00:40:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:40:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 00:40:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 00:40:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 00:40:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:01,180 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-17 00:40:01,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:40:01,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604629944] [2021-11-17 00:40:01,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604629944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:40:01,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:40:01,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 00:40:01,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589927303] [2021-11-17 00:40:01,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:40:01,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 00:40:01,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:40:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 00:40:01,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 00:40:01,183 INFO L87 Difference]: Start difference. First operand 29910 states and 42020 transitions. Second operand has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:40:03,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:25,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:40:25,374 INFO L93 Difference]: Finished difference Result 46428 states and 65776 transitions. [2021-11-17 00:40:25,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 00:40:25,374 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 283 [2021-11-17 00:40:25,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:40:25,567 INFO L225 Difference]: With dead ends: 46428 [2021-11-17 00:40:25,567 INFO L226 Difference]: Without dead ends: 31444 [2021-11-17 00:40:25,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2021-11-17 00:40:25,612 INFO L933 BasicCegarLoop]: 2337 mSDtfsCounter, 2345 mSDsluCounter, 12026 mSDsCounter, 0 mSdLazyCounter, 5387 mSolverCounterSat, 1038 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2546 SdHoareTripleChecker+Valid, 14363 SdHoareTripleChecker+Invalid, 6426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1038 IncrementalHoareTripleChecker+Valid, 5387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2021-11-17 00:40:25,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2546 Valid, 14363 Invalid, 6426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1038 Valid, 5387 Invalid, 1 Unknown, 0 Unchecked, 22.5s Time] [2021-11-17 00:40:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31444 states. [2021-11-17 00:40:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31444 to 29958. [2021-11-17 00:40:26,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29958 states, 21234 states have (on average 1.3347932560987097) internal successors, (28343), 21598 states have internal predecessors, (28343), 6603 states have call successors, (6603), 2013 states have call predecessors, (6603), 2120 states have return successors, (7138), 6506 states have call predecessors, (7138), 6602 states have call successors, (7138) [2021-11-17 00:40:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29958 states to 29958 states and 42084 transitions. [2021-11-17 00:40:26,643 INFO L78 Accepts]: Start accepts. Automaton has 29958 states and 42084 transitions. Word has length 283 [2021-11-17 00:40:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:40:26,644 INFO L470 AbstractCegarLoop]: Abstraction has 29958 states and 42084 transitions. [2021-11-17 00:40:26,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:40:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 29958 states and 42084 transitions. [2021-11-17 00:40:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-17 00:40:26,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:40:26,671 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:40:26,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 00:40:26,672 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:40:26,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:40:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1375755258, now seen corresponding path program 1 times [2021-11-17 00:40:26,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:40:26,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259671702] [2021-11-17 00:40:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:40:26,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:40:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:26,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:40:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:40:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:26,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:40:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:40:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:26,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:40:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 00:40:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:40:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:40:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:40:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:40:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:40:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:40:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:40:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 00:40:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 00:40:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 00:40:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 00:40:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:40:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 00:40:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 00:40:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 00:40:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-17 00:40:27,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:40:27,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259671702] [2021-11-17 00:40:27,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259671702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:40:27,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:40:27,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 00:40:27,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043056106] [2021-11-17 00:40:27,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:40:27,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 00:40:27,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:40:27,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 00:40:27,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 00:40:27,882 INFO L87 Difference]: Start difference. First operand 29958 states and 42084 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 5 states have internal predecessors, (141), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:40:29,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:46,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:40:46,214 INFO L93 Difference]: Finished difference Result 92602 states and 131318 transitions. [2021-11-17 00:40:46,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 00:40:46,214 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 5 states have internal predecessors, (141), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 280 [2021-11-17 00:40:46,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:40:46,646 INFO L225 Difference]: With dead ends: 92602 [2021-11-17 00:40:46,646 INFO L226 Difference]: Without dead ends: 62660 [2021-11-17 00:40:46,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2021-11-17 00:40:46,741 INFO L933 BasicCegarLoop]: 2329 mSDtfsCounter, 2746 mSDsluCounter, 9868 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 1479 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2944 SdHoareTripleChecker+Valid, 12197 SdHoareTripleChecker+Invalid, 5444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1479 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-11-17 00:40:46,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2944 Valid, 12197 Invalid, 5444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1479 Valid, 3964 Invalid, 1 Unknown, 0 Unchecked, 16.0s Time] [2021-11-17 00:40:46,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62660 states. [2021-11-17 00:40:49,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62660 to 59698. [2021-11-17 00:40:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59698 states, 42258 states have (on average 1.3326470727436226) internal successors, (56315), 43114 states have internal predecessors, (56315), 13199 states have call successors, (13199), 4025 states have call predecessors, (13199), 4240 states have return successors, (14366), 12846 states have call predecessors, (14366), 13198 states have call successors, (14366) [2021-11-17 00:40:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59698 states to 59698 states and 83880 transitions. [2021-11-17 00:40:49,420 INFO L78 Accepts]: Start accepts. Automaton has 59698 states and 83880 transitions. Word has length 280 [2021-11-17 00:40:49,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:40:49,422 INFO L470 AbstractCegarLoop]: Abstraction has 59698 states and 83880 transitions. [2021-11-17 00:40:49,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 5 states have internal predecessors, (141), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:40:49,422 INFO L276 IsEmpty]: Start isEmpty. Operand 59698 states and 83880 transitions. [2021-11-17 00:40:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-17 00:40:49,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:40:49,471 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:40:49,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 00:40:49,471 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:40:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:40:49,471 INFO L85 PathProgramCache]: Analyzing trace with hash 875032275, now seen corresponding path program 1 times [2021-11-17 00:40:49,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:40:49,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780256141] [2021-11-17 00:40:49,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:40:49,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:40:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:40:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:40:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:40:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:40:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:40:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 00:40:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:40:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:40:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:40:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:40:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:40:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:40:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:40:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 00:40:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:40:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 00:40:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 00:40:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 00:40:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:40:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 00:40:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 00:40:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:40:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 00:40:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-17 00:40:50,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:40:50,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780256141] [2021-11-17 00:40:50,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780256141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:40:50,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:40:50,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 00:40:50,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897855891] [2021-11-17 00:40:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:40:50,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 00:40:50,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:40:50,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 00:40:50,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 00:40:50,971 INFO L87 Difference]: Start difference. First operand 59698 states and 83880 transitions. Second operand has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 5 states have internal predecessors, (142), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:40:53,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:55,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:57,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:59,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:15,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:41:15,620 INFO L93 Difference]: Finished difference Result 184646 states and 261650 transitions. [2021-11-17 00:41:15,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 00:41:15,621 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 5 states have internal predecessors, (142), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 281 [2021-11-17 00:41:15,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:41:16,318 INFO L225 Difference]: With dead ends: 184646 [2021-11-17 00:41:16,318 INFO L226 Difference]: Without dead ends: 124964 [2021-11-17 00:41:16,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2021-11-17 00:41:16,463 INFO L933 BasicCegarLoop]: 1713 mSDtfsCounter, 2637 mSDsluCounter, 7403 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 1313 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 9116 SdHoareTripleChecker+Invalid, 4861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1313 IncrementalHoareTripleChecker+Valid, 3544 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-17 00:41:16,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2837 Valid, 9116 Invalid, 4861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1313 Valid, 3544 Invalid, 4 Unknown, 0 Unchecked, 20.9s Time] [2021-11-17 00:41:16,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124964 states. [2021-11-17 00:41:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124964 to 119402. [2021-11-17 00:41:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119402 states, 84498 states have (on average 1.330812563610973) internal successors, (112451), 86242 states have internal predecessors, (112451), 26391 states have call successors, (26391), 8049 states have call predecessors, (26391), 8512 states have return successors, (28822), 25686 states have call predecessors, (28822), 26390 states have call successors, (28822) [2021-11-17 00:41:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119402 states to 119402 states and 167664 transitions. [2021-11-17 00:41:21,152 INFO L78 Accepts]: Start accepts. Automaton has 119402 states and 167664 transitions. Word has length 281 [2021-11-17 00:41:21,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:41:21,154 INFO L470 AbstractCegarLoop]: Abstraction has 119402 states and 167664 transitions. [2021-11-17 00:41:21,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 5 states have internal predecessors, (142), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:41:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 119402 states and 167664 transitions. [2021-11-17 00:41:21,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-17 00:41:21,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:41:21,468 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:41:21,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 00:41:21,468 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:41:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:41:21,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1803820787, now seen corresponding path program 1 times [2021-11-17 00:41:21,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:41:21,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885202398] [2021-11-17 00:41:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:41:21,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:41:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:41:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:41:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:41:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:21,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:41:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:21,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:41:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:41:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:21,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 00:41:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:41:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:41:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:41:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:41:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:41:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:41:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:41:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:41:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:41:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:41:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 00:41:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:41:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 00:41:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:41:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 00:41:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:41:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 00:41:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:41:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 00:41:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 00:41:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:41:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 00:41:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-17 00:41:22,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:41:22,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885202398] [2021-11-17 00:41:22,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885202398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:41:22,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:41:22,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 00:41:22,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066667857] [2021-11-17 00:41:22,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:41:22,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 00:41:22,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:41:22,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 00:41:22,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 00:41:22,557 INFO L87 Difference]: Start difference. First operand 119402 states and 167664 transitions. Second operand has 12 states, 12 states have (on average 11.916666666666666) internal successors, (143), 5 states have internal predecessors, (143), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:41:24,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:26,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:28,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:41:48,846 INFO L93 Difference]: Finished difference Result 369246 states and 522602 transitions. [2021-11-17 00:41:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 00:41:48,847 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.916666666666666) internal successors, (143), 5 states have internal predecessors, (143), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 282 [2021-11-17 00:41:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:41:50,175 INFO L225 Difference]: With dead ends: 369246 [2021-11-17 00:41:50,175 INFO L226 Difference]: Without dead ends: 249860 [2021-11-17 00:41:50,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2021-11-17 00:41:50,467 INFO L933 BasicCegarLoop]: 1709 mSDtfsCounter, 3143 mSDsluCounter, 7383 mSDsCounter, 0 mSdLazyCounter, 3489 mSolverCounterSat, 1871 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 9092 SdHoareTripleChecker+Invalid, 5363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1871 IncrementalHoareTripleChecker+Valid, 3489 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-17 00:41:50,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3343 Valid, 9092 Invalid, 5363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1871 Valid, 3489 Invalid, 3 Unknown, 0 Unchecked, 19.8s Time] [2021-11-17 00:41:50,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249860 states. [2021-11-17 00:41:57,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249860 to 238842. [2021-11-17 00:41:57,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238842 states, 169010 states have (on average 1.3296432163777292) internal successors, (224723), 172530 states have internal predecessors, (224723), 52775 states have call successors, (52775), 16097 states have call predecessors, (52775), 17056 states have return successors, (57670), 51366 states have call predecessors, (57670), 52774 states have call successors, (57670) [2021-11-17 00:41:59,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238842 states to 238842 states and 335168 transitions. [2021-11-17 00:41:59,389 INFO L78 Accepts]: Start accepts. Automaton has 238842 states and 335168 transitions. Word has length 282 [2021-11-17 00:41:59,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:41:59,390 INFO L470 AbstractCegarLoop]: Abstraction has 238842 states and 335168 transitions. [2021-11-17 00:41:59,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.916666666666666) internal successors, (143), 5 states have internal predecessors, (143), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:41:59,391 INFO L276 IsEmpty]: Start isEmpty. Operand 238842 states and 335168 transitions. [2021-11-17 00:41:59,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-17 00:41:59,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:41:59,437 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:41:59,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 00:41:59,437 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:41:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:41:59,438 INFO L85 PathProgramCache]: Analyzing trace with hash -197174612, now seen corresponding path program 1 times [2021-11-17 00:41:59,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:41:59,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63373051] [2021-11-17 00:41:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:41:59,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:41:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:59,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:41:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:41:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:41:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:41:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:59,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:41:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:59,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:41:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:59,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 00:41:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:42:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:42:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:42:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:42:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:42:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:42:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:42:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:42:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:42:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:42:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 00:42:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:42:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 00:42:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:42:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 00:42:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:42:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 00:42:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:42:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 00:42:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 00:42:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:42:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 00:42:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-17 00:42:00,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:42:00,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63373051] [2021-11-17 00:42:00,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63373051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:42:00,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:42:00,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 00:42:00,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373434129] [2021-11-17 00:42:00,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:42:00,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 00:42:00,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:42:00,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 00:42:00,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 00:42:00,547 INFO L87 Difference]: Start difference. First operand 238842 states and 335168 transitions. Second operand has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 00:42:02,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:04,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:06,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:31,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:42:31,342 INFO L93 Difference]: Finished difference Result 738510 states and 1044058 transitions. [2021-11-17 00:42:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 00:42:31,343 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 4 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 283 [2021-11-17 00:42:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:42:34,067 INFO L225 Difference]: With dead ends: 738510 [2021-11-17 00:42:34,067 INFO L226 Difference]: Without dead ends: 499108 [2021-11-17 00:42:34,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2021-11-17 00:42:34,849 INFO L933 BasicCegarLoop]: 1710 mSDtfsCounter, 2661 mSDsluCounter, 6585 mSDsCounter, 0 mSdLazyCounter, 2978 mSolverCounterSat, 1367 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 8295 SdHoareTripleChecker+Invalid, 4348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1367 IncrementalHoareTripleChecker+Valid, 2978 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-11-17 00:42:34,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2860 Valid, 8295 Invalid, 4348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1367 Valid, 2978 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time]