./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:18:16,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:18:16,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:18:16,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:18:16,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:18:16,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:18:16,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:18:16,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:18:16,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:18:16,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:18:16,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:18:16,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:18:16,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:18:16,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:18:16,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:18:16,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:18:16,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:18:16,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:18:16,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:18:16,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:18:16,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:18:16,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:18:16,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:18:16,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:18:16,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:18:16,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:18:16,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:18:16,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:18:16,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:18:16,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:18:16,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:18:16,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:18:16,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:18:16,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:18:16,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:18:16,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:18:16,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:18:16,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:18:16,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:18:16,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:18:16,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:18:16,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:18:16,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:18:16,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:18:16,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:18:16,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:18:16,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:18:16,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:18:16,508 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:18:16,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:18:16,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:18:16,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:18:16,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:18:16,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:18:16,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:18:16,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:18:16,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:18:16,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:18:16,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:18:16,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:18:16,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:18:16,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:18:16,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:18:16,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:18:16,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:18:16,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:18:16,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:18:16,511 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:18:16,511 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:18:16,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:18:16,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:18:16,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2021-11-06 20:18:16,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:18:16,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:18:16,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:18:16,714 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:18:16,715 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:18:16,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-06 20:18:16,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b296ed6/6b6d422c3a6549b7b7b169f6475622e1/FLAG2de14ecfc [2021-11-06 20:18:17,381 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:18:17,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-06 20:18:17,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b296ed6/6b6d422c3a6549b7b7b169f6475622e1/FLAG2de14ecfc [2021-11-06 20:18:17,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b296ed6/6b6d422c3a6549b7b7b169f6475622e1 [2021-11-06 20:18:17,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:18:17,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:18:17,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:18:17,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:18:17,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:18:17,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:18:17" (1/1) ... [2021-11-06 20:18:17,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab5b946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:17, skipping insertion in model container [2021-11-06 20:18:17,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:18:17" (1/1) ... [2021-11-06 20:18:17,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:18:17,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:18:19,797 WARN L228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-06 20:18:19,799 WARN L228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-06 20:18:19,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:18:19,843 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:18:20,145 WARN L228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-06 20:18:20,146 WARN L228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-06 20:18:20,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:18:20,263 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:18:20,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20 WrapperNode [2021-11-06 20:18:20,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:18:20,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:18:20,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:18:20,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:18:20,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:20,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:22,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:18:22,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:18:22,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:18:22,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:18:22,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:22,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:23,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:23,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:24,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:24,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:24,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:25,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:18:25,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:18:25,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:18:25,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:18:25,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (1/1) ... [2021-11-06 20:18:25,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:18:25,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:18:25,059 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) [2021-11-06 20:18:25,064 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 [2021-11-06 20:18:25,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:18:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 20:18:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:18:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:18:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:18:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:18:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:18:25,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:18:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2021-11-06 20:18:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2021-11-06 20:18:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 20:18:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 20:18:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:18:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:18:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:18:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:18:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2021-11-06 20:18:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2021-11-06 20:18:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:19:27,262 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-06 20:19:27,262 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 20:19:27,262 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 20:19:27,263 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:19:27,263 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 20:19:27,263 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 20:19:27,264 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 20:19:27,265 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:19:27,265 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:19:27,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:19:27,369 INFO L299 CfgBuilder]: Removed 24635 assume(true) statements. [2021-11-06 20:19:27,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:19:27 BoogieIcfgContainer [2021-11-06 20:19:27,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:19:27,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:19:27,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:19:27,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:19:27,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:18:17" (1/3) ... [2021-11-06 20:19:27,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c4310f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:19:27, skipping insertion in model container [2021-11-06 20:19:27,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:18:20" (2/3) ... [2021-11-06 20:19:27,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c4310f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:19:27, skipping insertion in model container [2021-11-06 20:19:27,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:19:27" (3/3) ... [2021-11-06 20:19:27,387 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-06 20:19:27,393 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:19:27,393 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-06 20:19:27,475 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:19:27,479 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 [2021-11-06 20:19:27,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-06 20:19:27,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 18863 states, 18808 states have (on average 1.3090706082518078) internal successors, (24621), 18837 states have internal predecessors, (24621), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-06 20:19:27,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 20:19:27,823 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:19:27,824 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:19:27,824 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-06 20:19:27,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:19:27,836 INFO L85 PathProgramCache]: Analyzing trace with hash -900611428, now seen corresponding path program 1 times [2021-11-06 20:19:27,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:19:27,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384175647] [2021-11-06 20:19:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:19:27,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:19:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:19:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:19:28,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:19:28,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384175647] [2021-11-06 20:19:28,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384175647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:19:28,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:19:28,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:19:28,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244936151] [2021-11-06 20:19:28,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:19:28,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:19:28,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:19:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:28,417 INFO L87 Difference]: Start difference. First operand has 18863 states, 18808 states have (on average 1.3090706082518078) internal successors, (24621), 18837 states have internal predecessors, (24621), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:31,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:19:31,483 INFO L93 Difference]: Finished difference Result 46488 states and 60793 transitions. [2021-11-06 20:19:31,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:19:31,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-06 20:19:31,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:19:31,598 INFO L225 Difference]: With dead ends: 46488 [2021-11-06 20:19:31,599 INFO L226 Difference]: Without dead ends: 26481 [2021-11-06 20:19:31,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:31,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26481 states. [2021-11-06 20:19:32,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26481 to 26449. [2021-11-06 20:19:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26449 states, 26383 states have (on average 1.2663457529469735) internal successors, (33410), 26412 states have internal predecessors, (33410), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-06 20:19:32,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26449 states to 26449 states and 33474 transitions. [2021-11-06 20:19:32,389 INFO L78 Accepts]: Start accepts. Automaton has 26449 states and 33474 transitions. Word has length 78 [2021-11-06 20:19:32,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:19:32,391 INFO L470 AbstractCegarLoop]: Abstraction has 26449 states and 33474 transitions. [2021-11-06 20:19:32,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 26449 states and 33474 transitions. [2021-11-06 20:19:32,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-06 20:19:32,396 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:19:32,396 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:19:32,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:19:32,396 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-06 20:19:32,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:19:32,397 INFO L85 PathProgramCache]: Analyzing trace with hash 735125227, now seen corresponding path program 1 times [2021-11-06 20:19:32,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:19:32,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91576492] [2021-11-06 20:19:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:19:32,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:19:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:19:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:19:32,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:19:32,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91576492] [2021-11-06 20:19:32,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91576492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:19:32,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:19:32,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:19:32,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662864810] [2021-11-06 20:19:32,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:19:32,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:19:32,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:19:32,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:32,577 INFO L87 Difference]: Start difference. First operand 26449 states and 33474 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:35,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:19:35,452 INFO L93 Difference]: Finished difference Result 62696 states and 79491 transitions. [2021-11-06 20:19:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:19:35,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-06 20:19:35,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:19:35,532 INFO L225 Difference]: With dead ends: 62696 [2021-11-06 20:19:35,532 INFO L226 Difference]: Without dead ends: 36371 [2021-11-06 20:19:35,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:35,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36371 states. [2021-11-06 20:19:36,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36371 to 36327. [2021-11-06 20:19:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36327 states, 36243 states have (on average 1.2693209723256904) internal successors, (46004), 36272 states have internal predecessors, (46004), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-11-06 20:19:36,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36327 states to 36327 states and 46100 transitions. [2021-11-06 20:19:36,277 INFO L78 Accepts]: Start accepts. Automaton has 36327 states and 46100 transitions. Word has length 105 [2021-11-06 20:19:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:19:36,279 INFO L470 AbstractCegarLoop]: Abstraction has 36327 states and 46100 transitions. [2021-11-06 20:19:36,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:36,280 INFO L276 IsEmpty]: Start isEmpty. Operand 36327 states and 46100 transitions. [2021-11-06 20:19:36,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-06 20:19:36,288 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:19:36,289 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:19:36,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:19:36,289 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-06 20:19:36,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:19:36,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1816046720, now seen corresponding path program 1 times [2021-11-06 20:19:36,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:19:36,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207196284] [2021-11-06 20:19:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:19:36,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:19:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:19:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:19:36,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:19:36,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207196284] [2021-11-06 20:19:36,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207196284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:19:36,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:19:36,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:19:36,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634339450] [2021-11-06 20:19:36,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:19:36,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:19:36,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:19:36,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:36,685 INFO L87 Difference]: Start difference. First operand 36327 states and 46100 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:39,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:19:39,664 INFO L93 Difference]: Finished difference Result 81325 states and 103168 transitions. [2021-11-06 20:19:39,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:19:39,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-06 20:19:39,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:19:39,757 INFO L225 Difference]: With dead ends: 81325 [2021-11-06 20:19:39,757 INFO L226 Difference]: Without dead ends: 45122 [2021-11-06 20:19:39,848 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:39,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45122 states. [2021-11-06 20:19:40,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45122 to 45086. [2021-11-06 20:19:40,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45086 states, 44991 states have (on average 1.2678313440465871) internal successors, (57041), 45020 states have internal predecessors, (57041), 57 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-06 20:19:40,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45086 states to 45086 states and 57155 transitions. [2021-11-06 20:19:40,649 INFO L78 Accepts]: Start accepts. Automaton has 45086 states and 57155 transitions. Word has length 112 [2021-11-06 20:19:40,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:19:40,649 INFO L470 AbstractCegarLoop]: Abstraction has 45086 states and 57155 transitions. [2021-11-06 20:19:40,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:40,650 INFO L276 IsEmpty]: Start isEmpty. Operand 45086 states and 57155 transitions. [2021-11-06 20:19:40,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-06 20:19:40,656 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:19:40,657 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:19:40,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 20:19:40,657 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-06 20:19:40,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:19:40,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1934852224, now seen corresponding path program 1 times [2021-11-06 20:19:40,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:19:40,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334690834] [2021-11-06 20:19:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:19:40,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:19:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:19:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:19:41,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:19:41,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334690834] [2021-11-06 20:19:41,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334690834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:19:41,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:19:41,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:19:41,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848320949] [2021-11-06 20:19:41,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:19:41,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:19:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:19:41,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:41,025 INFO L87 Difference]: Start difference. First operand 45086 states and 57155 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:19:43,802 INFO L93 Difference]: Finished difference Result 90226 states and 114396 transitions. [2021-11-06 20:19:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:19:43,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-06 20:19:43,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:19:43,902 INFO L225 Difference]: With dead ends: 90226 [2021-11-06 20:19:43,902 INFO L226 Difference]: Without dead ends: 45264 [2021-11-06 20:19:43,965 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45264 states. [2021-11-06 20:19:44,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45264 to 45264. [2021-11-06 20:19:44,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45264 states, 45169 states have (on average 1.2677278664570835) internal successors, (57262), 45198 states have internal predecessors, (57262), 57 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-06 20:19:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45264 states to 45264 states and 57376 transitions. [2021-11-06 20:19:44,941 INFO L78 Accepts]: Start accepts. Automaton has 45264 states and 57376 transitions. Word has length 117 [2021-11-06 20:19:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:19:44,942 INFO L470 AbstractCegarLoop]: Abstraction has 45264 states and 57376 transitions. [2021-11-06 20:19:44,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 45264 states and 57376 transitions. [2021-11-06 20:19:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-06 20:19:44,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:19:44,952 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:19:44,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 20:19:44,952 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-06 20:19:44,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:19:44,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1712842836, now seen corresponding path program 1 times [2021-11-06 20:19:44,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:19:44,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796003428] [2021-11-06 20:19:44,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:19:44,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:19:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:19:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:19:45,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:19:45,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796003428] [2021-11-06 20:19:45,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796003428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:19:45,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:19:45,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:19:45,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753908392] [2021-11-06 20:19:45,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:19:45,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:19:45,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:19:45,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:45,146 INFO L87 Difference]: Start difference. First operand 45264 states and 57376 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:48,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:19:48,677 INFO L93 Difference]: Finished difference Result 134992 states and 171182 transitions. [2021-11-06 20:19:48,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:19:48,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-06 20:19:48,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:19:48,870 INFO L225 Difference]: With dead ends: 134992 [2021-11-06 20:19:48,870 INFO L226 Difference]: Without dead ends: 90030 [2021-11-06 20:19:48,935 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90030 states. [2021-11-06 20:19:50,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90030 to 89970. [2021-11-06 20:19:50,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89970 states, 89810 states have (on average 1.2681215900233826) internal successors, (113890), 89839 states have internal predecessors, (113890), 114 states have call successors, (114), 16 states have call predecessors, (114), 16 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-06 20:19:50,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89970 states to 89970 states and 114118 transitions. [2021-11-06 20:19:50,668 INFO L78 Accepts]: Start accepts. Automaton has 89970 states and 114118 transitions. Word has length 148 [2021-11-06 20:19:50,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:19:50,668 INFO L470 AbstractCegarLoop]: Abstraction has 89970 states and 114118 transitions. [2021-11-06 20:19:50,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand 89970 states and 114118 transitions. [2021-11-06 20:19:50,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-06 20:19:50,677 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:19:50,678 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:19:50,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 20:19:50,678 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-06 20:19:50,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:19:50,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1220216662, now seen corresponding path program 1 times [2021-11-06 20:19:50,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:19:50,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460677109] [2021-11-06 20:19:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:19:50,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:19:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:19:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:19:50,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:19:50,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460677109] [2021-11-06 20:19:50,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460677109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:19:50,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:19:50,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:19:50,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247424703] [2021-11-06 20:19:50,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:19:50,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:19:50,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:19:50,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:50,843 INFO L87 Difference]: Start difference. First operand 89970 states and 114118 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:55,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:19:55,173 INFO L93 Difference]: Finished difference Result 224410 states and 284672 transitions. [2021-11-06 20:19:55,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:19:55,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-06 20:19:55,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:19:55,596 INFO L225 Difference]: With dead ends: 224410 [2021-11-06 20:19:55,600 INFO L226 Difference]: Without dead ends: 134523 [2021-11-06 20:19:55,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:55,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134523 states. [2021-11-06 20:19:58,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134523 to 134463. [2021-11-06 20:19:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134463 states, 134238 states have (on average 1.2682846883892787) internal successors, (170252), 134267 states have internal predecessors, (170252), 171 states have call successors, (171), 24 states have call predecessors, (171), 24 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2021-11-06 20:19:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134463 states to 134463 states and 170594 transitions. [2021-11-06 20:19:58,513 INFO L78 Accepts]: Start accepts. Automaton has 134463 states and 170594 transitions. Word has length 148 [2021-11-06 20:19:58,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:19:58,514 INFO L470 AbstractCegarLoop]: Abstraction has 134463 states and 170594 transitions. [2021-11-06 20:19:58,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:19:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 134463 states and 170594 transitions. [2021-11-06 20:19:58,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-06 20:19:58,523 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:19:58,523 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:19:58,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 20:19:58,524 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-06 20:19:58,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:19:58,524 INFO L85 PathProgramCache]: Analyzing trace with hash -465666424, now seen corresponding path program 1 times [2021-11-06 20:19:58,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:19:58,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245915111] [2021-11-06 20:19:58,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:19:58,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:19:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:19:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 20:19:58,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:19:58,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245915111] [2021-11-06 20:19:58,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245915111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:19:58,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:19:58,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:19:58,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930046063] [2021-11-06 20:19:58,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:19:58,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:19:58,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:19:58,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:19:58,724 INFO L87 Difference]: Start difference. First operand 134463 states and 170594 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:20:03,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:20:03,505 INFO L93 Difference]: Finished difference Result 294777 states and 373886 transitions. [2021-11-06 20:20:03,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:20:03,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2021-11-06 20:20:03,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:20:03,873 INFO L225 Difference]: With dead ends: 294777 [2021-11-06 20:20:03,873 INFO L226 Difference]: Without dead ends: 160447 [2021-11-06 20:20:04,085 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:20:04,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160447 states. [2021-11-06 20:20:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160447 to 160411. [2021-11-06 20:20:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160411 states, 160153 states have (on average 1.2672382034679337) internal successors, (202952), 160182 states have internal predecessors, (202952), 198 states have call successors, (198), 30 states have call predecessors, (198), 30 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2021-11-06 20:20:07,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160411 states to 160411 states and 203348 transitions. [2021-11-06 20:20:07,511 INFO L78 Accepts]: Start accepts. Automaton has 160411 states and 203348 transitions. Word has length 151 [2021-11-06 20:20:07,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:20:07,511 INFO L470 AbstractCegarLoop]: Abstraction has 160411 states and 203348 transitions. [2021-11-06 20:20:07,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:20:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 160411 states and 203348 transitions. [2021-11-06 20:20:07,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-06 20:20:07,542 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:20:07,542 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:20:07,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 20:20:07,543 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-06 20:20:07,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:20:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash -443034170, now seen corresponding path program 1 times [2021-11-06 20:20:07,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:20:07,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585857320] [2021-11-06 20:20:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:20:07,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:20:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:20:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 20:20:07,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:20:07,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585857320] [2021-11-06 20:20:07,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585857320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:20:07,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:20:07,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 20:20:07,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277724661] [2021-11-06 20:20:07,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:20:07,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:20:07,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:20:07,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:20:07,878 INFO L87 Difference]: Start difference. First operand 160411 states and 203348 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)