./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.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 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 23:54:40,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 23:54:40,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 23:54:40,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 23:54:40,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 23:54:40,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 23:54:40,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 23:54:40,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 23:54:40,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 23:54:40,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 23:54:40,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 23:54:40,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 23:54:40,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 23:54:40,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 23:54:40,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 23:54:40,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 23:54:40,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 23:54:40,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 23:54:40,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 23:54:40,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 23:54:40,451 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 23:54:40,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 23:54:40,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 23:54:40,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 23:54:40,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 23:54:40,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 23:54:40,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 23:54:40,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 23:54:40,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 23:54:40,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 23:54:40,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 23:54:40,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 23:54:40,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 23:54:40,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 23:54:40,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 23:54:40,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 23:54:40,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 23:54:40,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 23:54:40,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 23:54:40,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 23:54:40,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 23:54:40,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 23:54:40,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 23:54:40,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 23:54:40,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 23:54:40,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 23:54:40,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 23:54:40,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 23:54:40,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 23:54:40,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 23:54:40,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 23:54:40,498 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 23:54:40,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 23:54:40,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 23:54:40,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 23:54:40,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 23:54:40,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 23:54:40,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 23:54:40,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 23:54:40,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 23:54:40,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 23:54:40,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 23:54:40,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 23:54:40,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 23:54:40,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:54:40,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 23:54:40,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 23:54:40,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 23:54:40,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 23:54:40,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 23:54:40,502 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 23:54:40,502 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 23:54:40,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 23:54:40,502 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 [2022-07-13 23:54:40,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 23:54:40,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 23:54:40,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 23:54:40,729 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 23:54:40,730 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 23:54:40,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2022-07-13 23:54:40,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4911db695/98f3a0a4a88b4e2c826ac25f9262fe17/FLAGb6f9b6afd [2022-07-13 23:54:41,381 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 23:54:41,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2022-07-13 23:54:41,429 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4911db695/98f3a0a4a88b4e2c826ac25f9262fe17/FLAGb6f9b6afd [2022-07-13 23:54:41,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4911db695/98f3a0a4a88b4e2c826ac25f9262fe17 [2022-07-13 23:54:41,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 23:54:41,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 23:54:41,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 23:54:41,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 23:54:41,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 23:54:41,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:54:41" (1/1) ... [2022-07-13 23:54:41,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac868e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:41, skipping insertion in model container [2022-07-13 23:54:41,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:54:41" (1/1) ... [2022-07-13 23:54:41,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 23:54:41,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:54:43,333 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2022-07-13 23:54:43,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:54:43,450 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 23:54:43,747 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2022-07-13 23:54:43,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:54:43,872 INFO L208 MainTranslator]: Completed translation [2022-07-13 23:54:43,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43 WrapperNode [2022-07-13 23:54:43,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 23:54:43,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 23:54:43,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 23:54:43,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 23:54:43,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:43,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,161 INFO L137 Inliner]: procedures = 395, calls = 4060, calls flagged for inlining = 199, calls inlined = 146, statements flattened = 7353 [2022-07-13 23:54:44,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 23:54:44,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 23:54:44,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 23:54:44,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 23:54:44,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 23:54:44,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 23:54:44,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 23:54:44,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 23:54:44,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:44,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:54:44,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:54:44,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 23:54:44,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 23:54:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2022-07-13 23:54:44,567 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2022-07-13 23:54:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-13 23:54:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-13 23:54:44,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-13 23:54:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2022-07-13 23:54:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2022-07-13 23:54:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2022-07-13 23:54:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2022-07-13 23:54:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2022-07-13 23:54:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2022-07-13 23:54:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-13 23:54:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-13 23:54:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2022-07-13 23:54:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2022-07-13 23:54:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-07-13 23:54:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-07-13 23:54:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2022-07-13 23:54:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2022-07-13 23:54:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2022-07-13 23:54:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2022-07-13 23:54:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2022-07-13 23:54:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2022-07-13 23:54:44,570 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-13 23:54:44,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-13 23:54:44,570 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-13 23:54:44,570 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-13 23:54:44,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2022-07-13 23:54:44,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2022-07-13 23:54:44,570 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2022-07-13 23:54:44,570 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2022-07-13 23:54:44,570 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-13 23:54:44,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-13 23:54:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-13 23:54:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2022-07-13 23:54:44,571 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2022-07-13 23:54:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2022-07-13 23:54:44,571 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2022-07-13 23:54:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-13 23:54:44,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-13 23:54:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2022-07-13 23:54:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2022-07-13 23:54:44,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 23:54:44,572 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2022-07-13 23:54:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2022-07-13 23:54:44,572 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-13 23:54:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-13 23:54:44,572 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-13 23:54:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-13 23:54:44,572 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-07-13 23:54:44,573 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-07-13 23:54:44,573 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-13 23:54:44,573 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-13 23:54:44,573 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2022-07-13 23:54:44,573 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2022-07-13 23:54:44,573 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2022-07-13 23:54:44,573 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2022-07-13 23:54:44,573 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-13 23:54:44,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-13 23:54:44,574 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2022-07-13 23:54:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2022-07-13 23:54:44,574 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2022-07-13 23:54:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2022-07-13 23:54:44,574 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-13 23:54:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-13 23:54:44,574 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2022-07-13 23:54:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2022-07-13 23:54:44,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-13 23:54:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-13 23:54:44,575 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-13 23:54:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-13 23:54:44,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-13 23:54:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-13 23:54:44,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-13 23:54:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-13 23:54:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 23:54:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2022-07-13 23:54:44,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2022-07-13 23:54:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2022-07-13 23:54:44,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2022-07-13 23:54:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2022-07-13 23:54:44,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2022-07-13 23:54:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-07-13 23:54:44,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-07-13 23:54:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2022-07-13 23:54:44,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2022-07-13 23:54:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2022-07-13 23:54:44,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2022-07-13 23:54:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2022-07-13 23:54:44,577 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2022-07-13 23:54:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2022-07-13 23:54:44,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2022-07-13 23:54:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-13 23:54:44,577 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-13 23:54:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2022-07-13 23:54:44,577 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2022-07-13 23:54:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2022-07-13 23:54:44,578 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2022-07-13 23:54:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 23:54:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2022-07-13 23:54:44,578 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2022-07-13 23:54:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2022-07-13 23:54:44,578 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2022-07-13 23:54:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 23:54:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 23:54:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-13 23:54:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-13 23:54:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-13 23:54:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2022-07-13 23:54:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2022-07-13 23:54:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2022-07-13 23:54:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2022-07-13 23:54:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2022-07-13 23:54:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2022-07-13 23:54:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2022-07-13 23:54:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2022-07-13 23:54:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-13 23:54:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-13 23:54:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2022-07-13 23:54:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2022-07-13 23:54:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2022-07-13 23:54:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2022-07-13 23:54:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-13 23:54:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-13 23:54:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-13 23:54:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-13 23:54:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2022-07-13 23:54:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2022-07-13 23:54:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 23:54:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 23:54:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-07-13 23:54:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-07-13 23:54:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-13 23:54:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-13 23:54:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2022-07-13 23:54:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2022-07-13 23:54:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-13 23:54:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-13 23:54:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-13 23:54:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-13 23:54:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2022-07-13 23:54:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2022-07-13 23:54:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2022-07-13 23:54:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2022-07-13 23:54:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-13 23:54:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-13 23:54:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-13 23:54:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-13 23:54:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2022-07-13 23:54:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2022-07-13 23:54:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2022-07-13 23:54:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2022-07-13 23:54:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-13 23:54:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-13 23:54:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-13 23:54:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-13 23:54:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2022-07-13 23:54:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2022-07-13 23:54:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-13 23:54:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-13 23:54:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2022-07-13 23:54:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2022-07-13 23:54:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-13 23:54:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-13 23:54:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2022-07-13 23:54:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2022-07-13 23:54:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2022-07-13 23:54:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2022-07-13 23:54:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 23:54:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 23:54:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2022-07-13 23:54:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2022-07-13 23:54:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2022-07-13 23:54:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2022-07-13 23:54:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-13 23:54:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-13 23:54:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 23:54:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2022-07-13 23:54:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2022-07-13 23:54:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-13 23:54:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-13 23:54:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2022-07-13 23:54:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2022-07-13 23:54:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-13 23:54:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-13 23:54:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-13 23:54:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-13 23:54:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-13 23:54:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-13 23:54:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-13 23:54:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-13 23:54:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-07-13 23:54:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-07-13 23:54:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2022-07-13 23:54:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2022-07-13 23:54:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2022-07-13 23:54:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2022-07-13 23:54:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2022-07-13 23:54:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2022-07-13 23:54:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-07-13 23:54:44,589 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-07-13 23:54:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2022-07-13 23:54:44,589 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2022-07-13 23:54:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2022-07-13 23:54:44,589 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2022-07-13 23:54:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2022-07-13 23:54:44,589 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2022-07-13 23:54:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-13 23:54:44,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-13 23:54:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-13 23:54:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-13 23:54:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-13 23:54:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-13 23:54:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2022-07-13 23:54:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2022-07-13 23:54:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-13 23:54:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-13 23:54:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-13 23:54:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-13 23:54:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-13 23:54:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-13 23:54:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2022-07-13 23:54:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2022-07-13 23:54:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2022-07-13 23:54:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2022-07-13 23:54:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 23:54:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-13 23:54:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-13 23:54:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2022-07-13 23:54:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2022-07-13 23:54:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2022-07-13 23:54:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2022-07-13 23:54:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-13 23:54:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-13 23:54:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-07-13 23:54:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-07-13 23:54:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-13 23:54:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-13 23:54:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2022-07-13 23:54:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2022-07-13 23:54:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2022-07-13 23:54:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2022-07-13 23:54:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2022-07-13 23:54:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2022-07-13 23:54:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2022-07-13 23:54:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2022-07-13 23:54:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-13 23:54:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-13 23:54:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-07-13 23:54:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-07-13 23:54:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-13 23:54:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-13 23:54:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 23:54:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2022-07-13 23:54:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2022-07-13 23:54:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-13 23:54:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-13 23:54:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-13 23:54:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-13 23:54:45,295 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 23:54:45,298 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 23:55:05,746 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 23:55:05,772 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 23:55:05,772 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 23:55:05,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:55:05 BoogieIcfgContainer [2022-07-13 23:55:05,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 23:55:05,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 23:55:05,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 23:55:05,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 23:55:05,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:54:41" (1/3) ... [2022-07-13 23:55:05,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1117a518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:55:05, skipping insertion in model container [2022-07-13 23:55:05,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43" (2/3) ... [2022-07-13 23:55:05,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1117a518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:55:05, skipping insertion in model container [2022-07-13 23:55:05,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:55:05" (3/3) ... [2022-07-13 23:55:05,784 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2022-07-13 23:55:05,794 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 23:55:05,794 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 23:55:05,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 23:55:05,896 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@52621064, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@400c648f [2022-07-13 23:55:05,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 23:55:05,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 3259 states, 2247 states have (on average 1.422340898976413) internal successors, (3196), 2324 states have internal predecessors, (3196), 890 states have call successors, (890), 120 states have call predecessors, (890), 120 states have return successors, (890), 870 states have call predecessors, (890), 890 states have call successors, (890) [2022-07-13 23:55:05,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 23:55:05,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:05,930 INFO L195 NwaCegarLoop]: 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] [2022-07-13 23:55:05,930 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:05,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:05,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1697268518, now seen corresponding path program 1 times [2022-07-13 23:55:05,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:05,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300065154] [2022-07-13 23:55:05,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:05,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-13 23:55:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:06,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:06,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:06,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300065154] [2022-07-13 23:55:06,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300065154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:06,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:06,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:55:06,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108854145] [2022-07-13 23:55:06,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:06,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:55:06,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:06,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:55:06,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:55:06,401 INFO L87 Difference]: Start difference. First operand has 3259 states, 2247 states have (on average 1.422340898976413) internal successors, (3196), 2324 states have internal predecessors, (3196), 890 states have call successors, (890), 120 states have call predecessors, (890), 120 states have return successors, (890), 870 states have call predecessors, (890), 890 states have call successors, (890) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:10,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:12,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:16,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:20,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:23,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:25,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:27,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:29,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:33,765 INFO L93 Difference]: Finished difference Result 10056 states and 15715 transitions. [2022-07-13 23:55:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:55:33,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-07-13 23:55:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:33,846 INFO L225 Difference]: With dead ends: 10056 [2022-07-13 23:55:33,846 INFO L226 Difference]: Without dead ends: 6794 [2022-07-13 23:55:33,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:55:33,876 INFO L413 NwaCegarLoop]: 5315 mSDtfsCounter, 5899 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 5666 mSolverCounterSat, 2487 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6703 SdHoareTripleChecker+Valid, 9083 SdHoareTripleChecker+Invalid, 8159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2487 IncrementalHoareTripleChecker+Valid, 5666 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:33,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6703 Valid, 9083 Invalid, 8159 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2487 Valid, 5666 Invalid, 6 Unknown, 0 Unchecked, 26.7s Time] [2022-07-13 23:55:33,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6794 states. [2022-07-13 23:55:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6794 to 6444. [2022-07-13 23:55:34,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6444 states, 4438 states have (on average 1.4100946372239747) internal successors, (6258), 4582 states have internal predecessors, (6258), 1767 states have call successors, (1767), 239 states have call predecessors, (1767), 238 states have return successors, (1761), 1721 states have call predecessors, (1761), 1761 states have call successors, (1761) [2022-07-13 23:55:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6444 states to 6444 states and 9786 transitions. [2022-07-13 23:55:34,273 INFO L78 Accepts]: Start accepts. Automaton has 6444 states and 9786 transitions. Word has length 23 [2022-07-13 23:55:34,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:34,274 INFO L495 AbstractCegarLoop]: Abstraction has 6444 states and 9786 transitions. [2022-07-13 23:55:34,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6444 states and 9786 transitions. [2022-07-13 23:55:34,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-13 23:55:34,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:34,282 INFO L195 NwaCegarLoop]: 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] [2022-07-13 23:55:34,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 23:55:34,283 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:34,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2059515394, now seen corresponding path program 1 times [2022-07-13 23:55:34,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:34,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577511130] [2022-07-13 23:55:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:34,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:55:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:34,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:34,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577511130] [2022-07-13 23:55:34,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577511130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:34,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:34,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:55:34,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195983443] [2022-07-13 23:55:34,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:34,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:55:34,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:34,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:55:34,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:34,429 INFO L87 Difference]: Start difference. First operand 6444 states and 9786 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:34,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:34,904 INFO L93 Difference]: Finished difference Result 16377 states and 24758 transitions. [2022-07-13 23:55:34,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:55:34,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-07-13 23:55:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:34,956 INFO L225 Difference]: With dead ends: 16377 [2022-07-13 23:55:34,956 INFO L226 Difference]: Without dead ends: 9936 [2022-07-13 23:55:34,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:34,996 INFO L413 NwaCegarLoop]: 5669 mSDtfsCounter, 2629 mSDsluCounter, 4645 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2629 SdHoareTripleChecker+Valid, 10314 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:34,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2629 Valid, 10314 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 23:55:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9936 states. [2022-07-13 23:55:35,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9936 to 9924. [2022-07-13 23:55:35,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9924 states, 6781 states have (on average 1.395221943666126) internal successors, (9461), 6989 states have internal predecessors, (9461), 2752 states have call successors, (2752), 391 states have call predecessors, (2752), 390 states have return successors, (2746), 2677 states have call predecessors, (2746), 2746 states have call successors, (2746) [2022-07-13 23:55:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9924 states to 9924 states and 14959 transitions. [2022-07-13 23:55:35,483 INFO L78 Accepts]: Start accepts. Automaton has 9924 states and 14959 transitions. Word has length 42 [2022-07-13 23:55:35,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:35,484 INFO L495 AbstractCegarLoop]: Abstraction has 9924 states and 14959 transitions. [2022-07-13 23:55:35,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand 9924 states and 14959 transitions. [2022-07-13 23:55:35,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-13 23:55:35,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:35,489 INFO L195 NwaCegarLoop]: 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] [2022-07-13 23:55:35,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 23:55:35,492 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:35,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:35,493 INFO L85 PathProgramCache]: Analyzing trace with hash -2000340873, now seen corresponding path program 1 times [2022-07-13 23:55:35,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:35,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806619551] [2022-07-13 23:55:35,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:35,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:35,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:55:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:35,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:55:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:35,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:35,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806619551] [2022-07-13 23:55:35,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806619551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:35,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:35,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:55:35,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667429082] [2022-07-13 23:55:35,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:35,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:55:35,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:35,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:55:35,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:55:35,650 INFO L87 Difference]: Start difference. First operand 9924 states and 14959 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:55:43,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:43,554 INFO L93 Difference]: Finished difference Result 21956 states and 33498 transitions. [2022-07-13 23:55:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:55:43,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-07-13 23:55:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:43,626 INFO L225 Difference]: With dead ends: 21956 [2022-07-13 23:55:43,626 INFO L226 Difference]: Without dead ends: 12035 [2022-07-13 23:55:43,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:55:43,684 INFO L413 NwaCegarLoop]: 5583 mSDtfsCounter, 3125 mSDsluCounter, 7962 mSDsCounter, 0 mSdLazyCounter, 5925 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3572 SdHoareTripleChecker+Valid, 13545 SdHoareTripleChecker+Invalid, 7320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 5925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:43,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3572 Valid, 13545 Invalid, 7320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1395 Valid, 5925 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-07-13 23:55:43,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12035 states. [2022-07-13 23:55:44,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12035 to 9928. [2022-07-13 23:55:44,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9928 states, 6785 states have (on average 1.3949889462048637) internal successors, (9465), 6993 states have internal predecessors, (9465), 2752 states have call successors, (2752), 391 states have call predecessors, (2752), 390 states have return successors, (2746), 2677 states have call predecessors, (2746), 2746 states have call successors, (2746) [2022-07-13 23:55:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 14963 transitions. [2022-07-13 23:55:44,220 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 14963 transitions. Word has length 47 [2022-07-13 23:55:44,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:44,220 INFO L495 AbstractCegarLoop]: Abstraction has 9928 states and 14963 transitions. [2022-07-13 23:55:44,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:55:44,221 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 14963 transitions. [2022-07-13 23:55:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-13 23:55:44,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:44,222 INFO L195 NwaCegarLoop]: 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] [2022-07-13 23:55:44,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 23:55:44,223 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:44,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1312663061, now seen corresponding path program 1 times [2022-07-13 23:55:44,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:44,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566368935] [2022-07-13 23:55:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:44,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:55:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:55:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:44,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:44,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566368935] [2022-07-13 23:55:44,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566368935] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:44,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:44,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:55:44,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461373447] [2022-07-13 23:55:44,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:44,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:55:44,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:44,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:55:44,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:55:44,448 INFO L87 Difference]: Start difference. First operand 9928 states and 14963 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:55:50,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:50,635 INFO L93 Difference]: Finished difference Result 21045 states and 31941 transitions. [2022-07-13 23:55:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:55:50,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-07-13 23:55:50,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:50,686 INFO L225 Difference]: With dead ends: 21045 [2022-07-13 23:55:50,687 INFO L226 Difference]: Without dead ends: 11120 [2022-07-13 23:55:50,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:55:50,726 INFO L413 NwaCegarLoop]: 4849 mSDtfsCounter, 6600 mSDsluCounter, 4627 mSDsCounter, 0 mSdLazyCounter, 3757 mSolverCounterSat, 2968 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7026 SdHoareTripleChecker+Valid, 9476 SdHoareTripleChecker+Invalid, 6725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2968 IncrementalHoareTripleChecker+Valid, 3757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:50,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7026 Valid, 9476 Invalid, 6725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2968 Valid, 3757 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-13 23:55:50,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11120 states. [2022-07-13 23:55:51,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11120 to 9930. [2022-07-13 23:55:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9930 states, 6787 states have (on average 1.394725209960218) internal successors, (9466), 6995 states have internal predecessors, (9466), 2752 states have call successors, (2752), 391 states have call predecessors, (2752), 390 states have return successors, (2746), 2677 states have call predecessors, (2746), 2746 states have call successors, (2746) [2022-07-13 23:55:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9930 states to 9930 states and 14964 transitions. [2022-07-13 23:55:51,218 INFO L78 Accepts]: Start accepts. Automaton has 9930 states and 14964 transitions. Word has length 50 [2022-07-13 23:55:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:51,220 INFO L495 AbstractCegarLoop]: Abstraction has 9930 states and 14964 transitions. [2022-07-13 23:55:51,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:55:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 9930 states and 14964 transitions. [2022-07-13 23:55:51,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-13 23:55:51,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:51,222 INFO L195 NwaCegarLoop]: 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] [2022-07-13 23:55:51,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 23:55:51,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:51,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:51,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1860967135, now seen corresponding path program 1 times [2022-07-13 23:55:51,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:51,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694847811] [2022-07-13 23:55:51,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:51,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:55:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:51,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:55:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:51,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:55:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:51,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:51,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694847811] [2022-07-13 23:55:51,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694847811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:51,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:51,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:55:51,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097857076] [2022-07-13 23:55:51,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:51,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:55:51,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:51,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:55:51,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:55:51,415 INFO L87 Difference]: Start difference. First operand 9930 states and 14964 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 23:55:54,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:55:57,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:01,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:04,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:06,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:08,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:10,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:13,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:15,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:56:15,532 INFO L93 Difference]: Finished difference Result 10634 states and 16215 transitions. [2022-07-13 23:56:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:56:15,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 56 [2022-07-13 23:56:15,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:56:15,570 INFO L225 Difference]: With dead ends: 10634 [2022-07-13 23:56:15,570 INFO L226 Difference]: Without dead ends: 10631 [2022-07-13 23:56:15,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:56:15,576 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 6243 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 3634 mSolverCounterSat, 3663 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6747 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 7303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3663 IncrementalHoareTripleChecker+Valid, 3634 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-07-13 23:56:15,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6747 Valid, 6730 Invalid, 7303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3663 Valid, 3634 Invalid, 6 Unknown, 0 Unchecked, 23.7s Time] [2022-07-13 23:56:15,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10631 states. [2022-07-13 23:56:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10631 to 9929. [2022-07-13 23:56:15,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9929 states, 6787 states have (on average 1.3945778694563136) internal successors, (9465), 6994 states have internal predecessors, (9465), 2751 states have call successors, (2751), 391 states have call predecessors, (2751), 390 states have return successors, (2746), 2677 states have call predecessors, (2746), 2746 states have call successors, (2746) [2022-07-13 23:56:16,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9929 states to 9929 states and 14962 transitions. [2022-07-13 23:56:16,054 INFO L78 Accepts]: Start accepts. Automaton has 9929 states and 14962 transitions. Word has length 56 [2022-07-13 23:56:16,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:56:16,055 INFO L495 AbstractCegarLoop]: Abstraction has 9929 states and 14962 transitions. [2022-07-13 23:56:16,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 23:56:16,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9929 states and 14962 transitions. [2022-07-13 23:56:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-13 23:56:16,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:56:16,059 INFO L195 NwaCegarLoop]: 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] [2022-07-13 23:56:16,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 23:56:16,059 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:56:16,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:56:16,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1853828954, now seen corresponding path program 1 times [2022-07-13 23:56:16,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:56:16,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71595982] [2022-07-13 23:56:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:56:16,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:56:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:16,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:56:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:56:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:56:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:56:16,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:56:16,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71595982] [2022-07-13 23:56:16,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71595982] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:56:16,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:56:16,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:56:16,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435401172] [2022-07-13 23:56:16,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:56:16,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:56:16,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:56:16,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:56:16,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:56:16,245 INFO L87 Difference]: Start difference. First operand 9929 states and 14962 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 23:56:19,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:21,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:24,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:26,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:29,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:31,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:33,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:35,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:37,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:56:39,801 INFO L93 Difference]: Finished difference Result 10633 states and 16213 transitions. [2022-07-13 23:56:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:56:39,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-07-13 23:56:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:56:39,836 INFO L225 Difference]: With dead ends: 10633 [2022-07-13 23:56:39,836 INFO L226 Difference]: Without dead ends: 10630 [2022-07-13 23:56:39,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:56:39,843 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 6258 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 3635 mSolverCounterSat, 3663 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6761 SdHoareTripleChecker+Valid, 6718 SdHoareTripleChecker+Invalid, 7303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3663 IncrementalHoareTripleChecker+Valid, 3635 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2022-07-13 23:56:39,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6761 Valid, 6718 Invalid, 7303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3663 Valid, 3635 Invalid, 5 Unknown, 0 Unchecked, 23.2s Time] [2022-07-13 23:56:39,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10630 states. [2022-07-13 23:56:40,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10630 to 9928. [2022-07-13 23:56:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9928 states, 6787 states have (on average 1.394430528952409) internal successors, (9464), 6993 states have internal predecessors, (9464), 2750 states have call successors, (2750), 391 states have call predecessors, (2750), 390 states have return successors, (2746), 2677 states have call predecessors, (2746), 2746 states have call successors, (2746) [2022-07-13 23:56:40,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 14960 transitions. [2022-07-13 23:56:40,294 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 14960 transitions. Word has length 57 [2022-07-13 23:56:40,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:56:40,294 INFO L495 AbstractCegarLoop]: Abstraction has 9928 states and 14960 transitions. [2022-07-13 23:56:40,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 23:56:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 14960 transitions. [2022-07-13 23:56:40,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-13 23:56:40,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:56:40,297 INFO L195 NwaCegarLoop]: 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] [2022-07-13 23:56:40,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 23:56:40,297 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:56:40,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:56:40,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1632550210, now seen corresponding path program 1 times [2022-07-13 23:56:40,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:56:40,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084420027] [2022-07-13 23:56:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:56:40,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:56:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:56:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:56:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:40,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:56:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:56:40,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:56:40,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084420027] [2022-07-13 23:56:40,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084420027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:56:40,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:56:40,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:56:40,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903060399] [2022-07-13 23:56:40,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:56:40,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:56:40,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:56:40,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:56:40,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:56:40,457 INFO L87 Difference]: Start difference. First operand 9928 states and 14960 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 23:56:43,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:46,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:49,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:51,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:54,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:56,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:56:58,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:00,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:03,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:05,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:57:05,289 INFO L93 Difference]: Finished difference Result 10632 states and 16211 transitions. [2022-07-13 23:57:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:57:05,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2022-07-13 23:57:05,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:57:05,326 INFO L225 Difference]: With dead ends: 10632 [2022-07-13 23:57:05,326 INFO L226 Difference]: Without dead ends: 10629 [2022-07-13 23:57:05,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:57:05,333 INFO L413 NwaCegarLoop]: 4308 mSDtfsCounter, 6243 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 3643 mSolverCounterSat, 3661 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6741 SdHoareTripleChecker+Valid, 6725 SdHoareTripleChecker+Invalid, 7311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3661 IncrementalHoareTripleChecker+Valid, 3643 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2022-07-13 23:57:05,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6741 Valid, 6725 Invalid, 7311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3661 Valid, 3643 Invalid, 7 Unknown, 0 Unchecked, 24.4s Time] [2022-07-13 23:57:05,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10629 states. [2022-07-13 23:57:05,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10629 to 9927. [2022-07-13 23:57:05,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9927 states, 6787 states have (on average 1.3942831884485045) internal successors, (9463), 6992 states have internal predecessors, (9463), 2749 states have call successors, (2749), 391 states have call predecessors, (2749), 390 states have return successors, (2746), 2677 states have call predecessors, (2746), 2746 states have call successors, (2746) [2022-07-13 23:57:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9927 states to 9927 states and 14958 transitions. [2022-07-13 23:57:05,788 INFO L78 Accepts]: Start accepts. Automaton has 9927 states and 14958 transitions. Word has length 58 [2022-07-13 23:57:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:57:05,788 INFO L495 AbstractCegarLoop]: Abstraction has 9927 states and 14958 transitions. [2022-07-13 23:57:05,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 23:57:05,789 INFO L276 IsEmpty]: Start isEmpty. Operand 9927 states and 14958 transitions. [2022-07-13 23:57:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-13 23:57:05,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:57:05,791 INFO L195 NwaCegarLoop]: 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] [2022-07-13 23:57:05,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 23:57:05,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:57:05,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:57:05,792 INFO L85 PathProgramCache]: Analyzing trace with hash -932118691, now seen corresponding path program 1 times [2022-07-13 23:57:05,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:57:05,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524077767] [2022-07-13 23:57:05,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:57:05,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:57:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:57:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:57:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:57:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:57:05,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:57:05,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524077767] [2022-07-13 23:57:05,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524077767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:57:05,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:57:05,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:57:05,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450571815] [2022-07-13 23:57:05,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:57:05,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:57:05,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:57:05,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:57:05,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:57:05,938 INFO L87 Difference]: Start difference. First operand 9927 states and 14958 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 23:57:08,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:11,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:15,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:18,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:20,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:22,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:25,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:27,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:31,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:57:31,152 INFO L93 Difference]: Finished difference Result 12477 states and 18937 transitions. [2022-07-13 23:57:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 23:57:31,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2022-07-13 23:57:31,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:57:31,190 INFO L225 Difference]: With dead ends: 12477 [2022-07-13 23:57:31,191 INFO L226 Difference]: Without dead ends: 12393 [2022-07-13 23:57:31,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 23:57:31,200 INFO L413 NwaCegarLoop]: 4355 mSDtfsCounter, 7194 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 5435 mSolverCounterSat, 4388 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7846 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 9829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4388 IncrementalHoareTripleChecker+Valid, 5435 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-07-13 23:57:31,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7846 Valid, 6845 Invalid, 9829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4388 Valid, 5435 Invalid, 6 Unknown, 0 Unchecked, 24.7s Time] [2022-07-13 23:57:31,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12393 states. [2022-07-13 23:57:31,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12393 to 11617. [2022-07-13 23:57:31,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11617 states, 7857 states have (on average 1.3894616265750286) internal successors, (10917), 8099 states have internal predecessors, (10917), 3277 states have call successors, (3277), 483 states have call predecessors, (3277), 482 states have return successors, (3276), 3188 states have call predecessors, (3276), 3276 states have call successors, (3276) [2022-07-13 23:57:31,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11617 states to 11617 states and 17470 transitions. [2022-07-13 23:57:31,690 INFO L78 Accepts]: Start accepts. Automaton has 11617 states and 17470 transitions. Word has length 59 [2022-07-13 23:57:31,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:57:31,691 INFO L495 AbstractCegarLoop]: Abstraction has 11617 states and 17470 transitions. [2022-07-13 23:57:31,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 23:57:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 11617 states and 17470 transitions. [2022-07-13 23:57:31,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 23:57:31,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:57:31,704 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 23:57:31,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 23:57:31,704 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:57:31,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:57:31,704 INFO L85 PathProgramCache]: Analyzing trace with hash 143235578, now seen corresponding path program 1 times [2022-07-13 23:57:31,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:57:31,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360389965] [2022-07-13 23:57:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:57:31,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:57:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:57:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:57:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:31,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 23:57:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:57:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:57:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 23:57:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:31,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:57:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:31,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:57:31,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:57:31,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360389965] [2022-07-13 23:57:31,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360389965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:57:31,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:57:31,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:57:31,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748666007] [2022-07-13 23:57:31,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:57:31,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:57:31,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:57:31,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:57:31,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:57:31,974 INFO L87 Difference]: Start difference. First operand 11617 states and 17470 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:57:37,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:39,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:48,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:57:48,068 INFO L93 Difference]: Finished difference Result 30545 states and 46074 transitions. [2022-07-13 23:57:48,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 23:57:48,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 112 [2022-07-13 23:57:48,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:57:48,143 INFO L225 Difference]: With dead ends: 30545 [2022-07-13 23:57:48,144 INFO L226 Difference]: Without dead ends: 18931 [2022-07-13 23:57:48,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 23:57:48,190 INFO L413 NwaCegarLoop]: 6282 mSDtfsCounter, 8266 mSDsluCounter, 3683 mSDsCounter, 0 mSdLazyCounter, 7509 mSolverCounterSat, 6009 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8612 SdHoareTripleChecker+Valid, 9965 SdHoareTripleChecker+Invalid, 13520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6009 IncrementalHoareTripleChecker+Valid, 7509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-07-13 23:57:48,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8612 Valid, 9965 Invalid, 13520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6009 Valid, 7509 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2022-07-13 23:57:48,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18931 states. [2022-07-13 23:57:48,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18931 to 18426. [2022-07-13 23:57:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18426 states, 12502 states have (on average 1.3852183650615901) internal successors, (17318), 12901 states have internal predecessors, (17318), 5161 states have call successors, (5161), 763 states have call predecessors, (5161), 762 states have return successors, (5160), 5018 states have call predecessors, (5160), 5160 states have call successors, (5160) [2022-07-13 23:57:49,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18426 states to 18426 states and 27639 transitions. [2022-07-13 23:57:49,068 INFO L78 Accepts]: Start accepts. Automaton has 18426 states and 27639 transitions. Word has length 112 [2022-07-13 23:57:49,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:57:49,068 INFO L495 AbstractCegarLoop]: Abstraction has 18426 states and 27639 transitions. [2022-07-13 23:57:49,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:57:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 18426 states and 27639 transitions. [2022-07-13 23:57:49,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-13 23:57:49,078 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:57:49,078 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 23:57:49,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 23:57:49,079 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:57:49,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:57:49,079 INFO L85 PathProgramCache]: Analyzing trace with hash -371106096, now seen corresponding path program 1 times [2022-07-13 23:57:49,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:57:49,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008534103] [2022-07-13 23:57:49,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:57:49,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:57:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:49,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:57:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:57:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:57:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 23:57:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:49,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 23:57:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 23:57:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:57:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 23:57:49,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:57:49,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008534103] [2022-07-13 23:57:49,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008534103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:57:49,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:57:49,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:57:49,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150545660] [2022-07-13 23:57:49,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:57:49,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:57:49,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:57:49,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:57:49,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:57:49,306 INFO L87 Difference]: Start difference. First operand 18426 states and 27639 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 23:57:52,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:57:56,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:57:56,803 INFO L93 Difference]: Finished difference Result 37269 states and 56404 transitions. [2022-07-13 23:57:56,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:57:56,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 109 [2022-07-13 23:57:56,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:57:56,882 INFO L225 Difference]: With dead ends: 37269 [2022-07-13 23:57:56,883 INFO L226 Difference]: Without dead ends: 18846 [2022-07-13 23:57:56,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 23:57:56,941 INFO L413 NwaCegarLoop]: 4060 mSDtfsCounter, 6987 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 4503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7229 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 6589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4503 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-13 23:57:56,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7229 Valid, 5986 Invalid, 6589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4503 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-07-13 23:57:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18846 states. [2022-07-13 23:57:57,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18846 to 18346. [2022-07-13 23:57:57,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18346 states, 12430 states have (on average 1.3612228479485116) internal successors, (16920), 12825 states have internal predecessors, (16920), 5157 states have call successors, (5157), 759 states have call predecessors, (5157), 758 states have return successors, (5156), 5014 states have call predecessors, (5156), 5156 states have call successors, (5156) [2022-07-13 23:57:57,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18346 states to 18346 states and 27233 transitions. [2022-07-13 23:57:57,801 INFO L78 Accepts]: Start accepts. Automaton has 18346 states and 27233 transitions. Word has length 109 [2022-07-13 23:57:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:57:57,801 INFO L495 AbstractCegarLoop]: Abstraction has 18346 states and 27233 transitions. [2022-07-13 23:57:57,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 23:57:57,802 INFO L276 IsEmpty]: Start isEmpty. Operand 18346 states and 27233 transitions. [2022-07-13 23:57:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-13 23:57:57,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:57:57,812 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 23:57:57,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 23:57:57,812 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:57:57,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:57:57,813 INFO L85 PathProgramCache]: Analyzing trace with hash 75172880, now seen corresponding path program 1 times [2022-07-13 23:57:57,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:57:57,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838039225] [2022-07-13 23:57:57,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:57:57,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:57:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:57:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:57:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:57:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:58,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 23:57:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:58,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 23:57:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 23:57:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:57:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:57:58,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:57:58,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838039225] [2022-07-13 23:57:58,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838039225] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:57:58,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402235682] [2022-07-13 23:57:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:57:58,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:57:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:57:58,038 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) [2022-07-13 23:57:58,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 23:57:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:57:59,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 3582 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 23:57:59,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:57:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 23:57:59,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:57:59,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402235682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:57:59,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:57:59,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2022-07-13 23:57:59,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659780298] [2022-07-13 23:57:59,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:57:59,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:57:59,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:57:59,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:57:59,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:57:59,113 INFO L87 Difference]: Start difference. First operand 18346 states and 27233 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:57:59,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:57:59,752 INFO L93 Difference]: Finished difference Result 36717 states and 54571 transitions. [2022-07-13 23:57:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:57:59,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 109 [2022-07-13 23:57:59,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:57:59,878 INFO L225 Difference]: With dead ends: 36717 [2022-07-13 23:57:59,878 INFO L226 Difference]: Without dead ends: 18374 [2022-07-13 23:57:59,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:57:59,933 INFO L413 NwaCegarLoop]: 4821 mSDtfsCounter, 2 mSDsluCounter, 14442 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19263 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:57:59,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19263 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:57:59,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18374 states. [2022-07-13 23:58:00,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18374 to 18362. [2022-07-13 23:58:00,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18362 states, 12442 states have (on average 1.3608744574827198) internal successors, (16932), 12837 states have internal predecessors, (16932), 5157 states have call successors, (5157), 759 states have call predecessors, (5157), 762 states have return successors, (5218), 5018 states have call predecessors, (5218), 5156 states have call successors, (5218) [2022-07-13 23:58:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18362 states to 18362 states and 27307 transitions. [2022-07-13 23:58:00,775 INFO L78 Accepts]: Start accepts. Automaton has 18362 states and 27307 transitions. Word has length 109 [2022-07-13 23:58:00,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:58:00,776 INFO L495 AbstractCegarLoop]: Abstraction has 18362 states and 27307 transitions. [2022-07-13 23:58:00,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:58:00,776 INFO L276 IsEmpty]: Start isEmpty. Operand 18362 states and 27307 transitions. [2022-07-13 23:58:00,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-13 23:58:00,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:58:00,785 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 23:58:00,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 23:58:01,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-13 23:58:01,011 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:58:01,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:58:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1707976879, now seen corresponding path program 1 times [2022-07-13 23:58:01,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:58:01,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185223997] [2022-07-13 23:58:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:58:01,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:58:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:58:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:58:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:58:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:58:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:58:01,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:58:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:58:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 23:58:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:58:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 23:58:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:58:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 23:58:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:58:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:58:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:58:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 23:58:01,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:58:01,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185223997] [2022-07-13 23:58:01,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185223997] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:58:01,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:58:01,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:58:01,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279513054] [2022-07-13 23:58:01,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:58:01,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:58:01,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:58:01,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:58:01,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:58:01,208 INFO L87 Difference]: Start difference. First operand 18362 states and 27307 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:58:05,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:58:07,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:58:09,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:58:15,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:58:15,407 INFO L93 Difference]: Finished difference Result 18862 states and 28079 transitions. [2022-07-13 23:58:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 23:58:15,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 109 [2022-07-13 23:58:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:58:15,410 INFO L225 Difference]: With dead ends: 18862 [2022-07-13 23:58:15,410 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 23:58:15,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 23:58:15,457 INFO L413 NwaCegarLoop]: 5093 mSDtfsCounter, 4541 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 5689 mSolverCounterSat, 3834 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 8454 SdHoareTripleChecker+Invalid, 9525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3834 IncrementalHoareTripleChecker+Valid, 5689 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-07-13 23:58:15,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 8454 Invalid, 9525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3834 Valid, 5689 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2022-07-13 23:58:15,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 23:58:15,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 23:58:15,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:58:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 23:58:15,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2022-07-13 23:58:15,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:58:15,462 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 23:58:15,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:58:15,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 23:58:15,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 23:58:15,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 23:58:15,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 23:58:15,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.