./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.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 aa052019b2e545fedc58252b88c286bfb7f233e130d9e12072cdb5cf6783cf5f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 05:29:41,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 05:29:41,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 05:29:41,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 05:29:41,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 05:29:41,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 05:29:41,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 05:29:41,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 05:29:41,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 05:29:41,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 05:29:41,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 05:29:41,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 05:29:41,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 05:29:41,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 05:29:41,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 05:29:41,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 05:29:41,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 05:29:41,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 05:29:41,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 05:29:41,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 05:29:41,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 05:29:41,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 05:29:41,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 05:29:41,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 05:29:41,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 05:29:41,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 05:29:41,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 05:29:41,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 05:29:41,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 05:29:41,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 05:29:41,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 05:29:41,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 05:29:41,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 05:29:41,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 05:29:41,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 05:29:41,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 05:29:41,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 05:29:41,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 05:29:41,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 05:29:41,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 05:29:41,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 05:29:41,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 05:29:41,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 05:29:41,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 05:29:41,128 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 05:29:41,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 05:29:41,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 05:29:41,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 05:29:41,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 05:29:41,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 05:29:41,129 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 05:29:41,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 05:29:41,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 05:29:41,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 05:29:41,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 05:29:41,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 05:29:41,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 05:29:41,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 05:29:41,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 05:29:41,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 05:29:41,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 05:29:41,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 05:29:41,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 05:29:41,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:29:41,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 05:29:41,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 05:29:41,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 05:29:41,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 05:29:41,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 05:29:41,133 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 05:29:41,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 05:29:41,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 05:29:41,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 05:29:41,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa052019b2e545fedc58252b88c286bfb7f233e130d9e12072cdb5cf6783cf5f [2021-11-17 05:29:41,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 05:29:41,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 05:29:41,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 05:29:41,339 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 05:29:41,340 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 05:29:41,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2021-11-17 05:29:41,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190a5efa3/f82a8feec52d4cf38795ca7347cbe624/FLAG447e2d93c [2021-11-17 05:29:41,992 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 05:29:41,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2021-11-17 05:29:42,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190a5efa3/f82a8feec52d4cf38795ca7347cbe624/FLAG447e2d93c [2021-11-17 05:29:42,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190a5efa3/f82a8feec52d4cf38795ca7347cbe624 [2021-11-17 05:29:42,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 05:29:42,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 05:29:42,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 05:29:42,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 05:29:42,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 05:29:42,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:29:42" (1/1) ... [2021-11-17 05:29:42,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f316c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:42, skipping insertion in model container [2021-11-17 05:29:42,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:29:42" (1/1) ... [2021-11-17 05:29:42,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 05:29:42,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 05:29:43,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i[304655,304668] [2021-11-17 05:29:43,755 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:29:43,795 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 05:29:44,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i[304655,304668] [2021-11-17 05:29:44,017 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:29:44,138 INFO L208 MainTranslator]: Completed translation [2021-11-17 05:29:44,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44 WrapperNode [2021-11-17 05:29:44,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 05:29:44,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 05:29:44,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 05:29:44,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 05:29:44,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,344 INFO L137 Inliner]: procedures = 299, calls = 2066, calls flagged for inlining = 144, calls inlined = 138, statements flattened = 4717 [2021-11-17 05:29:44,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 05:29:44,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 05:29:44,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 05:29:44,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 05:29:44,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 05:29:44,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 05:29:44,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 05:29:44,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 05:29:44,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (1/1) ... [2021-11-17 05:29:44,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:29:44,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:29:44,563 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 05:29:44,579 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 05:29:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2021-11-17 05:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2021-11-17 05:29:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_7 [2021-11-17 05:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_7 [2021-11-17 05:29:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-11-17 05:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-11-17 05:29:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 05:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 05:29:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 05:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 05:29:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 05:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 05:29:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 05:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 05:29:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2021-11-17 05:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2021-11-17 05:29:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 05:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 05:29:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 05:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 05:29:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_read_byte [2021-11-17 05:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_read_byte [2021-11-17 05:29:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 05:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 05:29:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-11-17 05:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-11-17 05:29:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2021-11-17 05:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2021-11-17 05:29:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2021-11-17 05:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2021-11-17 05:29:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2021-11-17 05:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2021-11-17 05:29:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 05:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 05:29:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 05:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 05:29:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 05:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 05:29:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-11-17 05:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-11-17 05:29:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 05:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 05:29:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 05:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 05:29:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 05:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 05:29:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2021-11-17 05:29:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2021-11-17 05:29:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ioctl [2021-11-17 05:29:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ioctl [2021-11-17 05:29:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 05:29:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 05:29:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 05:29:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 05:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-17 05:29:44,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-17 05:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2021-11-17 05:29:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2021-11-17 05:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 05:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2021-11-17 05:29:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2021-11-17 05:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 05:29:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 05:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-17 05:29:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-17 05:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 05:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 05:29:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 05:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 05:29:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 05:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 05:29:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 05:29:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_stats [2021-11-17 05:29:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_stats [2021-11-17 05:29:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 05:29:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 05:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-17 05:29:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-17 05:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 05:29:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 05:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 05:29:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 05:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 05:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 05:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2021-11-17 05:29:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2021-11-17 05:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 05:29:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 05:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2021-11-17 05:29:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2021-11-17 05:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-17 05:29:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-17 05:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-17 05:29:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-17 05:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 05:29:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 05:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-17 05:29:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-17 05:29:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 05:29:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 05:29:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-17 05:29:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-17 05:29:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2021-11-17 05:29:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2021-11-17 05:29:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2021-11-17 05:29:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2021-11-17 05:29:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 05:29:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 05:29:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2021-11-17 05:29:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2021-11-17 05:29:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2021-11-17 05:29:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2021-11-17 05:29:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2021-11-17 05:29:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2021-11-17 05:29:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 05:29:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 05:29:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 05:29:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout_work [2021-11-17 05:29:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout_work [2021-11-17 05:29:44,611 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 05:29:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 05:29:44,611 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 05:29:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 05:29:44,612 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 05:29:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 05:29:44,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 05:29:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 05:29:44,613 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2021-11-17 05:29:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2021-11-17 05:29:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2021-11-17 05:29:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2021-11-17 05:29:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2021-11-17 05:29:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2021-11-17 05:29:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-17 05:29:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-17 05:29:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2021-11-17 05:29:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2021-11-17 05:29:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2021-11-17 05:29:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2021-11-17 05:29:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 05:29:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 05:29:44,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 05:29:44,617 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 05:29:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 05:29:44,617 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2021-11-17 05:29:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2021-11-17 05:29:44,617 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2021-11-17 05:29:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2021-11-17 05:29:44,618 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2021-11-17 05:29:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2021-11-17 05:29:44,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 05:29:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 05:29:44,618 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2021-11-17 05:29:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2021-11-17 05:29:44,618 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2021-11-17 05:29:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2021-11-17 05:29:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 05:29:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 05:29:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 05:29:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-11-17 05:29:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-11-17 05:29:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 05:29:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 05:29:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2021-11-17 05:29:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2021-11-17 05:29:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2021-11-17 05:29:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2021-11-17 05:29:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 05:29:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 05:29:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 05:29:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2021-11-17 05:29:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2021-11-17 05:29:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 05:29:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 05:29:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 05:29:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 05:29:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 05:29:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 05:29:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 05:29:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 05:29:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2021-11-17 05:29:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2021-11-17 05:29:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-11-17 05:29:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-11-17 05:29:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2021-11-17 05:29:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2021-11-17 05:29:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2021-11-17 05:29:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2021-11-17 05:29:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_7 [2021-11-17 05:29:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_7 [2021-11-17 05:29:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-17 05:29:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-17 05:29:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-11-17 05:29:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-11-17 05:29:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-17 05:29:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-17 05:29:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-17 05:29:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-17 05:29:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-17 05:29:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-17 05:29:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2021-11-17 05:29:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2021-11-17 05:29:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 05:29:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-17 05:29:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2021-11-17 05:29:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2021-11-17 05:29:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-17 05:29:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-17 05:29:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-17 05:29:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-17 05:29:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 05:29:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 05:29:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-17 05:29:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-17 05:29:45,188 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 05:29:45,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 05:29:45,519 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 05:29:48,105 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7041-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret320#1;havoc tlan_eisa_probe_#t~ret320#1; [2021-11-17 05:29:48,105 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7041: SUMMARY for call tlan_eisa_probe_#t~ret320#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-17 05:29:48,105 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume 4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296; [2021-11-17 05:29:48,105 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !(4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296); [2021-11-17 05:29:48,105 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7043: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-17 05:29:48,105 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret321#1;havoc tlan_eisa_probe_#t~ret321#1; [2021-11-17 05:29:48,105 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: SUMMARY for call tlan_eisa_probe_#t~ret321#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-17 05:29:48,105 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7048: assume 8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7048: assume !(8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296); [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7049: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7053-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret322#1;havoc tlan_eisa_probe_#t~ret322#1; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7053: SUMMARY for call tlan_eisa_probe_#t~ret322#1 := inb((if (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7054: assume 1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7054: assume !(1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296); [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055-1: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet328#1; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055-1: assume !(16 == ~debug~0); [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet323#1; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059: assume !(16 == ~debug~0); [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059-2: SUMMARY for call tlan_eisa_probe_#t~ret324#1 := inb((if (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7063: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret324#1;havoc tlan_eisa_probe_#t~ret324#1;tlan_eisa_probe_#t~switch325#1 := 16 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7064: havoc tlan_eisa_probe_#t~switch325#1; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7065: assume tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_~irq~0#1 := 5; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7065: assume !tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_#t~switch325#1 := tlan_eisa_probe_#t~switch325#1 || 32 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7068: assume tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_~irq~0#1 := 9; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7068: assume !tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_#t~switch325#1 := tlan_eisa_probe_#t~switch325#1 || 64 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-17 05:29:48,106 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7071: assume tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_~irq~0#1 := 10; [2021-11-17 05:29:48,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7071: assume !tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_#t~switch325#1 := tlan_eisa_probe_#t~switch325#1 || 128 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-17 05:29:48,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7074: assume tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_~irq~0#1 := 11; [2021-11-17 05:29:48,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7074: assume !tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_#t~switch325#1 := true; [2021-11-17 05:29:48,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7077: assume tlan_eisa_probe_#t~switch325#1; [2021-11-17 05:29:48,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7077: assume !tlan_eisa_probe_#t~switch325#1; [2021-11-17 05:29:48,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7078: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet327#1; [2021-11-17 05:29:48,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7078: assume !(16 == ~debug~0); [2021-11-17 05:29:48,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7080: SUMMARY for call tlan_eisa_probe_#t~ret326#1 := tlan_probe1(0, 0, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12, 0, 0); srcloc: null [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7081: assume -2147483648 <= tlan_eisa_probe_#t~ret326#1 && tlan_eisa_probe_#t~ret326#1 <= 2147483647;tlan_eisa_probe_~rc~3#1 := tlan_eisa_probe_#t~ret326#1;havoc tlan_eisa_probe_#t~ret326#1; [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021-1: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: SUMMARY for call tlan_eisa_probe_#t~ret314#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022-1: tlan_eisa_probe_~tmp~38#1 := tlan_eisa_probe_#t~ret314#1;havoc tlan_eisa_probe_#t~ret314#1;havoc tlan_eisa_probe_#t~nondet315#1; [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7090-1: tlan_eisa_probe_~ioaddr~0#1 := 4096 + tlan_eisa_probe_~ioaddr~0#1; [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7026-1: assume 0 != ~bitwiseAnd(~debug~0, 16);havoc tlan_eisa_probe_#t~nondet318#1; [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7026-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7027-1: tlan_eisa_probe_~tmp___0~11#1 := tlan_eisa_probe_#t~ret316#1;havoc tlan_eisa_probe_#t~ret316#1;havoc tlan_eisa_probe_#t~nondet317#1; [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7027: SUMMARY for call tlan_eisa_probe_#t~ret316#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7031-1: call tlan_eisa_probe_#t~ret319#1.base, tlan_eisa_probe_#t~ret319#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0);tlan_eisa_probe_~tmp___1~4#1.base, tlan_eisa_probe_~tmp___1~4#1.offset := tlan_eisa_probe_#t~ret319#1.base, tlan_eisa_probe_#t~ret319#1.offset;havoc tlan_eisa_probe_#t~ret319#1.base, tlan_eisa_probe_#t~ret319#1.offset; [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7097: assume tlan_eisa_probe_~ioaddr~0#1 <= 36863; [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7097: assume !(tlan_eisa_probe_~ioaddr~0#1 <= 36863); [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7099: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7099: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7037: assume 0 == (tlan_eisa_probe_~tmp___1~4#1.base + tlan_eisa_probe_~tmp___1~4#1.offset) % 18446744073709551616; [2021-11-17 05:29:48,108 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7037: assume !(0 == (tlan_eisa_probe_~tmp___1~4#1.base + tlan_eisa_probe_~tmp___1~4#1.offset) % 18446744073709551616); [2021-11-17 05:29:48,163 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 05:29:48,181 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 05:29:48,181 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 05:29:48,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:29:48 BoogieIcfgContainer [2021-11-17 05:29:48,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 05:29:48,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 05:29:48,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 05:29:48,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 05:29:48,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:29:42" (1/3) ... [2021-11-17 05:29:48,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356e062e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:29:48, skipping insertion in model container [2021-11-17 05:29:48,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:29:44" (2/3) ... [2021-11-17 05:29:48,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356e062e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:29:48, skipping insertion in model container [2021-11-17 05:29:48,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:29:48" (3/3) ... [2021-11-17 05:29:48,190 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2021-11-17 05:29:48,194 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 05:29:48,194 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 05:29:48,234 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 05:29:48,239 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 05:29:48,240 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 05:29:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 2023 states, 1352 states have (on average 1.3150887573964498) internal successors, (1778), 1400 states have internal predecessors, (1778), 570 states have call successors, (570), 100 states have call predecessors, (570), 99 states have return successors, (562), 551 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-17 05:29:48,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-17 05:29:48,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:29:48,306 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:29:48,307 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:29:48,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:29:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2063791026, now seen corresponding path program 1 times [2021-11-17 05:29:48,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:29:48,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530623066] [2021-11-17 05:29:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:29:48,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:29:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:29:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:29:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:29:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:29:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:29:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:29:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:29:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:48,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:29:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:29:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:29:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 05:29:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:29:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-17 05:29:49,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:29:49,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530623066] [2021-11-17 05:29:49,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530623066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:29:49,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:29:49,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:29:49,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237972973] [2021-11-17 05:29:49,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:29:49,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:29:49,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:29:49,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:29:49,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:29:49,110 INFO L87 Difference]: Start difference. First operand has 2023 states, 1352 states have (on average 1.3150887573964498) internal successors, (1778), 1400 states have internal predecessors, (1778), 570 states have call successors, (570), 100 states have call predecessors, (570), 99 states have return successors, (562), 551 states have call predecessors, (562), 562 states have call successors, (562) Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 05:29:50,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:58,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:29:58,159 INFO L93 Difference]: Finished difference Result 6149 states and 8957 transitions. [2021-11-17 05:29:58,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:29:58,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 197 [2021-11-17 05:29:58,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:29:58,203 INFO L225 Difference]: With dead ends: 6149 [2021-11-17 05:29:58,203 INFO L226 Difference]: Without dead ends: 4052 [2021-11-17 05:29:58,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:29:58,247 INFO L933 BasicCegarLoop]: 2996 mSDtfsCounter, 4549 mSDsluCounter, 4995 mSDsCounter, 0 mSdLazyCounter, 4194 mSolverCounterSat, 3773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 7991 SdHoareTripleChecker+Invalid, 7967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3773 IncrementalHoareTripleChecker+Valid, 4194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:29:58,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4774 Valid, 7991 Invalid, 7967 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3773 Valid, 4194 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-11-17 05:29:58,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2021-11-17 05:29:58,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 3656. [2021-11-17 05:29:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 2427 states have (on average 1.3011948908117017) internal successors, (3158), 2511 states have internal predecessors, (3158), 1043 states have call successors, (1043), 185 states have call predecessors, (1043), 185 states have return successors, (1046), 1014 states have call predecessors, (1046), 1042 states have call successors, (1046) [2021-11-17 05:29:58,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5247 transitions. [2021-11-17 05:29:58,490 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5247 transitions. Word has length 197 [2021-11-17 05:29:58,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:29:58,492 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 5247 transitions. [2021-11-17 05:29:58,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 05:29:58,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5247 transitions. [2021-11-17 05:29:58,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-17 05:29:58,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:29:58,501 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:29:58,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 05:29:58,502 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:29:58,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:29:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1014293796, now seen corresponding path program 1 times [2021-11-17 05:29:58,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:29:58,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815216627] [2021-11-17 05:29:58,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:29:58,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:29:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:29:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:29:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:29:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:29:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:29:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:29:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:29:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:29:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:29:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:29:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 05:29:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 05:29:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-17 05:29:58,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:29:58,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815216627] [2021-11-17 05:29:58,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815216627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:29:58,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:29:58,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:29:58,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131099624] [2021-11-17 05:29:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:29:58,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:29:58,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:29:58,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:29:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:29:58,866 INFO L87 Difference]: Start difference. First operand 3656 states and 5247 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 05:30:01,025 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 05:30:04,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:30:04,980 INFO L93 Difference]: Finished difference Result 7732 states and 11167 transitions. [2021-11-17 05:30:04,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 05:30:04,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 190 [2021-11-17 05:30:04,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:30:05,044 INFO L225 Difference]: With dead ends: 7732 [2021-11-17 05:30:05,045 INFO L226 Difference]: Without dead ends: 4105 [2021-11-17 05:30:05,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:30:05,064 INFO L933 BasicCegarLoop]: 2506 mSDtfsCounter, 1660 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 2552 mSolverCounterSat, 1781 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 6397 SdHoareTripleChecker+Invalid, 4334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1781 IncrementalHoareTripleChecker+Valid, 2552 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:30:05,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1690 Valid, 6397 Invalid, 4334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1781 Valid, 2552 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-17 05:30:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2021-11-17 05:30:05,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 3660. [2021-11-17 05:30:05,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 2431 states have (on average 1.3006993006993006) internal successors, (3162), 2515 states have internal predecessors, (3162), 1043 states have call successors, (1043), 185 states have call predecessors, (1043), 185 states have return successors, (1046), 1014 states have call predecessors, (1046), 1042 states have call successors, (1046) [2021-11-17 05:30:05,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 5251 transitions. [2021-11-17 05:30:05,200 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 5251 transitions. Word has length 190 [2021-11-17 05:30:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:30:05,201 INFO L470 AbstractCegarLoop]: Abstraction has 3660 states and 5251 transitions. [2021-11-17 05:30:05,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 05:30:05,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5251 transitions. [2021-11-17 05:30:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-17 05:30:05,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:30:05,205 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:30:05,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 05:30:05,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:30:05,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:30:05,206 INFO L85 PathProgramCache]: Analyzing trace with hash -467895779, now seen corresponding path program 1 times [2021-11-17 05:30:05,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:30:05,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465581030] [2021-11-17 05:30:05,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:30:05,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:30:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:30:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:30:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:30:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:30:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:30:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:30:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:30:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:30:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:30:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:30:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 05:30:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 05:30:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:30:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 05:30:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:05,559 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-11-17 05:30:05,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:30:05,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465581030] [2021-11-17 05:30:05,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465581030] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:30:05,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949680998] [2021-11-17 05:30:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:30:05,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:30:05,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:30:05,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 05:30:05,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 05:30:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:06,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 2880 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 05:30:06,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:30:06,624 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-17 05:30:06,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:30:06,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949680998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:30:06,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:30:06,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-11-17 05:30:06,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149809036] [2021-11-17 05:30:06,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:30:06,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 05:30:06,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:30:06,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 05:30:06,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:30:06,626 INFO L87 Difference]: Start difference. First operand 3660 states and 5251 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-17 05:30:06,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:30:06,819 INFO L93 Difference]: Finished difference Result 7321 states and 10535 transitions. [2021-11-17 05:30:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 05:30:06,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 208 [2021-11-17 05:30:06,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:30:06,841 INFO L225 Difference]: With dead ends: 7321 [2021-11-17 05:30:06,841 INFO L226 Difference]: Without dead ends: 3690 [2021-11-17 05:30:06,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:30:06,864 INFO L933 BasicCegarLoop]: 2843 mSDtfsCounter, 9 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:30:06,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 5677 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 05:30:06,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2021-11-17 05:30:06,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3674. [2021-11-17 05:30:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 2443 states have (on average 1.3000409332787557) internal successors, (3176), 2527 states have internal predecessors, (3176), 1045 states have call successors, (1045), 185 states have call predecessors, (1045), 185 states have return successors, (1048), 1016 states have call predecessors, (1048), 1044 states have call successors, (1048) [2021-11-17 05:30:06,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 5269 transitions. [2021-11-17 05:30:06,985 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 5269 transitions. Word has length 208 [2021-11-17 05:30:06,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:30:06,987 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 5269 transitions. [2021-11-17 05:30:06,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-17 05:30:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5269 transitions. [2021-11-17 05:30:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 05:30:06,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:30:06,990 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:30:07,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 05:30:07,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:30:07,207 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:30:07,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:30:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash -175224482, now seen corresponding path program 1 times [2021-11-17 05:30:07,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:30:07,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151030995] [2021-11-17 05:30:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:30:07,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:30:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:30:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:30:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:30:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:30:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:30:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:30:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:30:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:30:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:30:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:30:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 05:30:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 05:30:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 05:30:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 05:30:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-17 05:30:07,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:30:07,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151030995] [2021-11-17 05:30:07,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151030995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:30:07,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:30:07,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:30:07,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749554484] [2021-11-17 05:30:07,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:30:07,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:30:07,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:30:07,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:30:07,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:30:07,513 INFO L87 Difference]: Start difference. First operand 3674 states and 5269 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 05:30:09,763 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 05:30:16,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:30:16,382 INFO L93 Difference]: Finished difference Result 11184 states and 16153 transitions. [2021-11-17 05:30:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:30:16,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 209 [2021-11-17 05:30:16,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:30:16,420 INFO L225 Difference]: With dead ends: 11184 [2021-11-17 05:30:16,421 INFO L226 Difference]: Without dead ends: 7539 [2021-11-17 05:30:16,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:30:16,442 INFO L933 BasicCegarLoop]: 3439 mSDtfsCounter, 4464 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 3575 mSolverCounterSat, 3585 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4697 SdHoareTripleChecker+Valid, 7862 SdHoareTripleChecker+Invalid, 7161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3585 IncrementalHoareTripleChecker+Valid, 3575 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:30:16,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4697 Valid, 7862 Invalid, 7161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3585 Valid, 3575 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-11-17 05:30:16,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7539 states. [2021-11-17 05:30:16,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7539 to 6772. [2021-11-17 05:30:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6772 states, 4455 states have (on average 1.2962962962962963) internal successors, (5775), 4606 states have internal predecessors, (5775), 1980 states have call successors, (1980), 336 states have call predecessors, (1980), 336 states have return successors, (1983), 1929 states have call predecessors, (1983), 1979 states have call successors, (1983) [2021-11-17 05:30:16,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6772 states to 6772 states and 9738 transitions. [2021-11-17 05:30:16,689 INFO L78 Accepts]: Start accepts. Automaton has 6772 states and 9738 transitions. Word has length 209 [2021-11-17 05:30:16,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:30:16,689 INFO L470 AbstractCegarLoop]: Abstraction has 6772 states and 9738 transitions. [2021-11-17 05:30:16,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 05:30:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand 6772 states and 9738 transitions. [2021-11-17 05:30:16,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-17 05:30:16,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:30:16,694 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:30:16,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 05:30:16,694 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:30:16,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:30:16,696 INFO L85 PathProgramCache]: Analyzing trace with hash 254280217, now seen corresponding path program 1 times [2021-11-17 05:30:16,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:30:16,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510824110] [2021-11-17 05:30:16,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:30:16,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:30:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:30:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:30:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:30:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:30:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:30:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:30:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:30:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:30:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:30:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:30:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:16,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 05:30:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:17,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 05:30:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:30:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:17,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 05:30:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-17 05:30:17,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:30:17,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510824110] [2021-11-17 05:30:17,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510824110] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:30:17,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074025254] [2021-11-17 05:30:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:30:17,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:30:17,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:30:17,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 05:30:17,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 05:30:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:17,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2900 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 05:30:17,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:30:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-17 05:30:17,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 05:30:18,353 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-17 05:30:18,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074025254] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 05:30:18,354 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 05:30:18,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 9 [2021-11-17 05:30:18,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941592981] [2021-11-17 05:30:18,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 05:30:18,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:30:18,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:30:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:30:18,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:30:18,355 INFO L87 Difference]: Start difference. First operand 6772 states and 9738 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-17 05:30:20,378 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 05:30:25,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:30:25,490 INFO L93 Difference]: Finished difference Result 14673 states and 21250 transitions. [2021-11-17 05:30:25,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 05:30:25,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 210 [2021-11-17 05:30:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:30:25,547 INFO L225 Difference]: With dead ends: 14673 [2021-11-17 05:30:25,547 INFO L226 Difference]: Without dead ends: 7934 [2021-11-17 05:30:25,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-11-17 05:30:25,579 INFO L933 BasicCegarLoop]: 2507 mSDtfsCounter, 1931 mSDsluCounter, 3872 mSDsCounter, 0 mSdLazyCounter, 2633 mSolverCounterSat, 1970 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 6379 SdHoareTripleChecker+Invalid, 4604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1970 IncrementalHoareTripleChecker+Valid, 2633 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:30:25,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1975 Valid, 6379 Invalid, 4604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1970 Valid, 2633 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-17 05:30:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7934 states. [2021-11-17 05:30:25,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7934 to 6944. [2021-11-17 05:30:25,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6944 states, 4579 states have (on average 1.2943874208342432) internal successors, (5927), 4730 states have internal predecessors, (5927), 2028 states have call successors, (2028), 336 states have call predecessors, (2028), 336 states have return successors, (2031), 1977 states have call predecessors, (2031), 2027 states have call successors, (2031) [2021-11-17 05:30:25,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6944 states to 6944 states and 9986 transitions. [2021-11-17 05:30:25,871 INFO L78 Accepts]: Start accepts. Automaton has 6944 states and 9986 transitions. Word has length 210 [2021-11-17 05:30:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:30:25,873 INFO L470 AbstractCegarLoop]: Abstraction has 6944 states and 9986 transitions. [2021-11-17 05:30:25,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-17 05:30:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 6944 states and 9986 transitions. [2021-11-17 05:30:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-17 05:30:25,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:30:25,877 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:30:25,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 05:30:26,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:30:26,100 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:30:26,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:30:26,100 INFO L85 PathProgramCache]: Analyzing trace with hash -645362856, now seen corresponding path program 1 times [2021-11-17 05:30:26,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:30:26,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138931473] [2021-11-17 05:30:26,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:30:26,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:30:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:30:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:30:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:30:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:30:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:30:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:30:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:30:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:30:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:30:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:30:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 05:30:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 05:30:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 05:30:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 05:30:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 05:30:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-17 05:30:26,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:30:26,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138931473] [2021-11-17 05:30:26,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138931473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:30:26,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:30:26,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:30:26,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517238479] [2021-11-17 05:30:26,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:30:26,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:30:26,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:30:26,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:30:26,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:30:26,459 INFO L87 Difference]: Start difference. First operand 6944 states and 9986 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 05:30:28,769 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 05:30:30,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:30:32,791 WARN L515 Checker$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 05:30:44,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:30:44,821 INFO L93 Difference]: Finished difference Result 26084 states and 39261 transitions. [2021-11-17 05:30:44,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:30:44,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 211 [2021-11-17 05:30:44,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:30:44,927 INFO L225 Difference]: With dead ends: 26084 [2021-11-17 05:30:44,927 INFO L226 Difference]: Without dead ends: 19173 [2021-11-17 05:30:44,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:30:44,963 INFO L933 BasicCegarLoop]: 2760 mSDtfsCounter, 7999 mSDsluCounter, 10639 mSDsCounter, 0 mSdLazyCounter, 9961 mSolverCounterSat, 7490 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8380 SdHoareTripleChecker+Valid, 13399 SdHoareTripleChecker+Invalid, 17453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7490 IncrementalHoareTripleChecker+Valid, 9961 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:30:44,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8380 Valid, 13399 Invalid, 17453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7490 Valid, 9961 Invalid, 2 Unknown, 0 Unchecked, 17.5s Time] [2021-11-17 05:30:44,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19173 states. [2021-11-17 05:30:45,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19173 to 13848. [2021-11-17 05:30:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13848 states, 9129 states have (on average 1.2941176470588236) internal successors, (11814), 9447 states have internal predecessors, (11814), 4044 states have call successors, (4044), 673 states have call predecessors, (4044), 674 states have return successors, (4051), 3927 states have call predecessors, (4051), 4043 states have call successors, (4051) [2021-11-17 05:30:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13848 states to 13848 states and 19909 transitions. [2021-11-17 05:30:45,597 INFO L78 Accepts]: Start accepts. Automaton has 13848 states and 19909 transitions. Word has length 211 [2021-11-17 05:30:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:30:45,597 INFO L470 AbstractCegarLoop]: Abstraction has 13848 states and 19909 transitions. [2021-11-17 05:30:45,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 05:30:45,597 INFO L276 IsEmpty]: Start isEmpty. Operand 13848 states and 19909 transitions. [2021-11-17 05:30:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-17 05:30:45,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:30:45,602 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:30:45,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 05:30:45,603 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:30:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:30:45,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1597066704, now seen corresponding path program 1 times [2021-11-17 05:30:45,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:30:45,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550399833] [2021-11-17 05:30:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:30:45,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:30:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:30:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:30:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:30:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:30:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:30:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:30:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:30:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:30:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:30:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:30:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:30:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:30:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 05:30:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 05:30:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 05:30:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 05:30:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:45,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 05:30:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:30:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-17 05:30:46,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:30:46,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550399833] [2021-11-17 05:30:46,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550399833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:30:46,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:30:46,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:30:46,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271099713] [2021-11-17 05:30:46,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:30:46,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:30:46,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:30:46,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:30:46,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:30:46,006 INFO L87 Difference]: Start difference. First operand 13848 states and 19909 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 05:30:48,029 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 05:30:59,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:30:59,545 INFO L93 Difference]: Finished difference Result 52120 states and 78398 transitions. [2021-11-17 05:30:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:30:59,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 212 [2021-11-17 05:30:59,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:30:59,818 INFO L225 Difference]: With dead ends: 52120 [2021-11-17 05:30:59,818 INFO L226 Difference]: Without dead ends: 38305 [2021-11-17 05:30:59,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:30:59,986 INFO L933 BasicCegarLoop]: 2786 mSDtfsCounter, 9738 mSDsluCounter, 8755 mSDsCounter, 0 mSdLazyCounter, 7831 mSolverCounterSat, 9652 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10114 SdHoareTripleChecker+Valid, 11541 SdHoareTripleChecker+Invalid, 17484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9652 IncrementalHoareTripleChecker+Valid, 7831 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:30:59,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10114 Valid, 11541 Invalid, 17484 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9652 Valid, 7831 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2021-11-17 05:31:00,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38305 states. [2021-11-17 05:31:01,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38305 to 27672. [2021-11-17 05:31:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27672 states, 18249 states have (on average 1.293659926571319) internal successors, (23608), 18881 states have internal predecessors, (23608), 8072 states have call successors, (8072), 1347 states have call predecessors, (8072), 1350 states have return successors, (8087), 7843 states have call predecessors, (8087), 8071 states have call successors, (8087) [2021-11-17 05:31:01,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27672 states to 27672 states and 39767 transitions. [2021-11-17 05:31:01,404 INFO L78 Accepts]: Start accepts. Automaton has 27672 states and 39767 transitions. Word has length 212 [2021-11-17 05:31:01,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:31:01,404 INFO L470 AbstractCegarLoop]: Abstraction has 27672 states and 39767 transitions. [2021-11-17 05:31:01,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 05:31:01,404 INFO L276 IsEmpty]: Start isEmpty. Operand 27672 states and 39767 transitions. [2021-11-17 05:31:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-17 05:31:01,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:31:01,410 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:31:01,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 05:31:01,410 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:31:01,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:31:01,411 INFO L85 PathProgramCache]: Analyzing trace with hash -987099685, now seen corresponding path program 1 times [2021-11-17 05:31:01,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:31:01,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140038430] [2021-11-17 05:31:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:31:01,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:31:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:31:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:31:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:31:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:31:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:31:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:31:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:31:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:31:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:31:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:31:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:31:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 05:31:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 05:31:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 05:31:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 05:31:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-17 05:31:01,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:31:01,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140038430] [2021-11-17 05:31:01,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140038430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:31:01,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:31:01,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:31:01,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645990878] [2021-11-17 05:31:01,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:31:01,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:31:01,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:31:01,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:31:01,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:31:01,738 INFO L87 Difference]: Start difference. First operand 27672 states and 39767 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 05:31:03,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:31:05,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:31:19,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:31:19,313 INFO L93 Difference]: Finished difference Result 104234 states and 156668 transitions. [2021-11-17 05:31:19,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:31:19,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 213 [2021-11-17 05:31:19,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:31:20,031 INFO L225 Difference]: With dead ends: 104234 [2021-11-17 05:31:20,031 INFO L226 Difference]: Without dead ends: 76595 [2021-11-17 05:31:20,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:31:20,167 INFO L933 BasicCegarLoop]: 2742 mSDtfsCounter, 7973 mSDsluCounter, 10447 mSDsCounter, 0 mSdLazyCounter, 10001 mSolverCounterSat, 7515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8353 SdHoareTripleChecker+Valid, 13189 SdHoareTripleChecker+Invalid, 17516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7515 IncrementalHoareTripleChecker+Valid, 10001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-11-17 05:31:20,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8353 Valid, 13189 Invalid, 17516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7515 Valid, 10001 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2021-11-17 05:31:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76595 states. [2021-11-17 05:31:22,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76595 to 55338. [2021-11-17 05:31:22,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55338 states, 36507 states have (on average 1.2932314350672474) internal successors, (47212), 37763 states have internal predecessors, (47212), 16124 states have call successors, (16124), 2699 states have call predecessors, (16124), 2706 states have return successors, (16155), 15675 states have call predecessors, (16155), 16123 states have call successors, (16155) [2021-11-17 05:31:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55338 states to 55338 states and 79491 transitions. [2021-11-17 05:31:23,178 INFO L78 Accepts]: Start accepts. Automaton has 55338 states and 79491 transitions. Word has length 213 [2021-11-17 05:31:23,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:31:23,179 INFO L470 AbstractCegarLoop]: Abstraction has 55338 states and 79491 transitions. [2021-11-17 05:31:23,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 05:31:23,179 INFO L276 IsEmpty]: Start isEmpty. Operand 55338 states and 79491 transitions. [2021-11-17 05:31:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 05:31:23,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:31:23,185 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:31:23,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 05:31:23,185 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:31:23,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:31:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash 790023955, now seen corresponding path program 1 times [2021-11-17 05:31:23,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:31:23,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597590169] [2021-11-17 05:31:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:31:23,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:31:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:31:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:31:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:31:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:31:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:31:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:31:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:31:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:31:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:31:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:31:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 05:31:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 05:31:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 05:31:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 05:31:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 05:31:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-17 05:31:23,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:31:23,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597590169] [2021-11-17 05:31:23,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597590169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:31:23,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:31:23,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:31:23,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134769986] [2021-11-17 05:31:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:31:23,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:31:23,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:31:23,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:31:23,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:31:23,476 INFO L87 Difference]: Start difference. First operand 55338 states and 79491 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 05:31:25,981 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 05:31:28,662 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 05:31:44,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:31:44,955 INFO L93 Difference]: Finished difference Result 207749 states and 312070 transitions. [2021-11-17 05:31:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:31:44,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 214 [2021-11-17 05:31:44,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:31:46,522 INFO L225 Difference]: With dead ends: 207749 [2021-11-17 05:31:46,522 INFO L226 Difference]: Without dead ends: 152444 [2021-11-17 05:31:46,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:31:46,973 INFO L933 BasicCegarLoop]: 2770 mSDtfsCounter, 7990 mSDsluCounter, 10584 mSDsCounter, 0 mSdLazyCounter, 10035 mSolverCounterSat, 7493 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8364 SdHoareTripleChecker+Valid, 13354 SdHoareTripleChecker+Invalid, 17530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7493 IncrementalHoareTripleChecker+Valid, 10035 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2021-11-17 05:31:46,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8364 Valid, 13354 Invalid, 17530 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7493 Valid, 10035 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2021-11-17 05:31:47,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152444 states. [2021-11-17 05:31:51,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152444 to 110223. [2021-11-17 05:31:52,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110223 states, 72695 states have (on average 1.2925785817456497) internal successors, (93964), 75183 states have internal predecessors, (93964), 32116 states have call successors, (32116), 5396 states have call predecessors, (32116), 5411 states have return successors, (32179), 31235 states have call predecessors, (32179), 32115 states have call successors, (32179) [2021-11-17 05:31:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110223 states to 110223 states and 158259 transitions. [2021-11-17 05:31:52,933 INFO L78 Accepts]: Start accepts. Automaton has 110223 states and 158259 transitions. Word has length 214 [2021-11-17 05:31:52,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:31:52,933 INFO L470 AbstractCegarLoop]: Abstraction has 110223 states and 158259 transitions. [2021-11-17 05:31:52,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 05:31:52,934 INFO L276 IsEmpty]: Start isEmpty. Operand 110223 states and 158259 transitions. [2021-11-17 05:31:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-17 05:31:52,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:31:52,940 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:31:52,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 05:31:52,940 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:31:52,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:31:52,941 INFO L85 PathProgramCache]: Analyzing trace with hash -988640855, now seen corresponding path program 1 times [2021-11-17 05:31:52,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:31:52,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453391056] [2021-11-17 05:31:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:31:52,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:31:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:31:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:31:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:31:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:31:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:31:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:31:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:31:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:31:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:31:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:31:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:31:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:31:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 05:31:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 05:31:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 05:31:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 05:31:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 05:31:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 05:31:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-11-17 05:31:53,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:31:53,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453391056] [2021-11-17 05:31:53,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453391056] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:31:53,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660603506] [2021-11-17 05:31:53,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:31:53,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:31:53,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:31:53,278 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 05:31:53,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 05:31:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:31:53,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:31:53,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:31:54,338 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-17 05:31:54,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:31:54,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660603506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:31:54,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:31:54,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-11-17 05:31:54,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914760492] [2021-11-17 05:31:54,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:31:54,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:31:54,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:31:54,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:31:54,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-17 05:31:54,340 INFO L87 Difference]: Start difference. First operand 110223 states and 158259 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 05:32:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:32:00,330 INFO L93 Difference]: Finished difference Result 275995 states and 396187 transitions. [2021-11-17 05:32:00,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 05:32:00,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 227 [2021-11-17 05:32:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:32:01,468 INFO L225 Difference]: With dead ends: 275995 [2021-11-17 05:32:01,469 INFO L226 Difference]: Without dead ends: 165805 [2021-11-17 05:32:02,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2021-11-17 05:32:02,085 INFO L933 BasicCegarLoop]: 3903 mSDtfsCounter, 2861 mSDsluCounter, 18414 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 22317 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:32:02,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2865 Valid, 22317 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 05:32:02,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165805 states.