/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:46:21,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:46:21,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:46:21,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:46:21,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:46:21,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:46:21,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:46:21,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:46:21,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:46:21,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:46:21,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:46:21,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:46:21,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:46:21,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:46:21,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:46:21,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:46:21,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:46:21,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:46:21,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:46:21,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:46:21,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:46:21,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:46:21,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:46:21,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:46:21,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:46:21,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:46:21,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:46:21,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:46:21,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:46:21,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:46:21,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:46:21,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:46:21,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:46:21,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:46:21,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:46:21,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:46:21,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:46:21,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:46:21,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:46:21,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:46:21,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:46:21,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 06:46:21,624 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:46:21,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:46:21,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:46:21,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:46:21,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:46:21,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:46:21,625 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:46:21,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:46:21,625 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:46:21,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:46:21,626 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:46:21,626 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:46:21,626 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:46:21,626 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:46:21,626 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:46:21,626 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:46:21,626 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:46:21,626 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:46:21,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:46:21,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:46:21,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:46:21,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:46:21,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:46:21,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:46:21,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:46:21,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:46:21,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:46:21,814 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:46:21,815 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:46:21,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 06:46:23,059 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:46:23,413 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:46:23,414 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 06:46:23,445 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5611d8cf1/537bd5489a2c49d3afe59f0e2380f851/FLAG4401f40f5 [2023-04-03 06:46:23,461 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5611d8cf1/537bd5489a2c49d3afe59f0e2380f851 [2023-04-03 06:46:23,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:46:23,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:46:23,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:46:23,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:46:23,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:46:23,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:46:23" (1/1) ... [2023-04-03 06:46:23,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52346b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:23, skipping insertion in model container [2023-04-03 06:46:23,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:46:23" (1/1) ... [2023-04-03 06:46:23,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:46:23,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:46:24,966 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2023-04-03 06:46:25,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:46:25,076 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:46:25,321 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2023-04-03 06:46:25,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:46:25,506 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:46:25,507 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:46:25,507 WARN L667 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:46:25,507 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:46:25,507 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:46:25,513 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:46:25,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25 WrapperNode [2023-04-03 06:46:25,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:46:25,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:46:25,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:46:25,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:46:25,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:25,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:25,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:25,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:25,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:25,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:25,920 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:25,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:26,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:46:26,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:46:26,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:46:26,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:46:26,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (1/1) ... [2023-04-03 06:46:26,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:46:26,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:46:26,058 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) [2023-04-03 06:46:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:46:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:46:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:46:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 06:46:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __atomic_add_unless [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_8 [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_11 [2023-04-03 06:46:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:46:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 06:46:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-03 06:46:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2023-04-03 06:46:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get_unless_zero [2023-04-03 06:46:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-03 06:46:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-03 06:46:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 06:46:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_get [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2023-04-03 06:46:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interface_claimed [2023-04-03 06:46:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-04-03 06:46:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-03 06:46:26,078 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 [2023-04-03 06:46:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-04-03 06:46:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 06:46:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-04-03 06:46:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-04-03 06:46:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_get_by_minor [2023-04-03 06:46:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_alloc_minor [2023-04-03 06:46:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2023-04-03 06:46:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2023-04-03 06:46:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_set_control [2023-04-03 06:46:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_alloc [2023-04-03 06:46:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2023-04-03 06:46:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2023-04-03 06:46:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2023-04-03 06:46:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure show_caps [2023-04-03 06:46:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_codes [2023-04-03 06:46:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_rel_date [2023-04-03 06:46:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2023-04-03 06:46:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2023-04-03 06:46:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2023-04-03 06:46:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_process_read_urb [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_bulk [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_open [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_activate [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_close [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2023-04-03 06:46:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_info [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure set_serial_info [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_serial_change [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_usage [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2023-04-03 06:46:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_alloc [2023-04-03 06:46:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_probe [2023-04-03 06:46:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2023-04-03 06:46:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2023-04-03 06:46:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_suspend [2023-04-03 06:46:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2023-04-03 06:46:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_reset_resume [2023-04-03 06:46:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_init [2023-04-03 06:46:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_exit [2023-04-03 06:46:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-04-03 06:46:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_4 [2023-04-03 06:46:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-04-03 06:46:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2023-04-03 06:46:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_2 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_15 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_16 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_17 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_18 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_19 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2023-04-03 06:46:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_30 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_32 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_33 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_34 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_35 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_36 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_37 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_38 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_39 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_40 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_41 [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 06:46:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-03 06:46:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2023-04-03 06:46:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_standard_install [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_vhangup [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2023-04-03 06:46:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_claim_interface [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2023-04-03 06:46:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-04-03 06:46:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-03 06:46:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2023-04-03 06:46:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 06:46:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2023-04-03 06:46:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:46:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:46:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:46:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:46:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-04-03 06:46:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:46:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_add_unless [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 06:46:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_8 [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_11 [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_15 [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_17 [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_16 [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_19 [2023-04-03 06:46:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_18 [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_38 [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get_unless_zero [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_4 [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2023-04-03 06:46:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_2 [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_vhangup [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_standard_install [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2023-04-03 06:46:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_get [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-03 06:46:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_claim_interface [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interface_claimed [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_40 [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_41 [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_34 [2023-04-03 06:46:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_36 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_37 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_30 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_39 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_32 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_33 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_35 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure acm_get_by_minor [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure acm_alloc_minor [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2023-04-03 06:46:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure acm_set_control [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_alloc [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure show_caps [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_codes [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_rel_date [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_process_read_urb [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_bulk [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_open [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_activate [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2023-04-03 06:46:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_close [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_info [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure set_serial_info [2023-04-03 06:46:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure wait_serial_change [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_usage [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_alloc [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_probe [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_suspend [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_reset_resume [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_init [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_exit [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:46:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:46:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:46:26,770 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:46:26,776 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:46:26,921 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:46:41,156 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:46:42,157 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:46:42,158 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 06:46:42,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:46:42 BoogieIcfgContainer [2023-04-03 06:46:42,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:46:42,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:46:42,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:46:42,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:46:42,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:46:23" (1/3) ... [2023-04-03 06:46:42,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62aeb320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:46:42, skipping insertion in model container [2023-04-03 06:46:42,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:25" (2/3) ... [2023-04-03 06:46:42,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62aeb320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:46:42, skipping insertion in model container [2023-04-03 06:46:42,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:46:42" (3/3) ... [2023-04-03 06:46:42,168 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 06:46:42,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:46:42,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:46:42,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:46:42,251 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=FINITE_AUTOMATA, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b82008d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:46:42,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:46:42,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 1881 states, 1098 states have (on average 1.278688524590164) internal successors, (1404), 1129 states have internal predecessors, (1404), 546 states have call successors, (546), 224 states have call predecessors, (546), 223 states have return successors, (537), 536 states have call predecessors, (537), 537 states have call successors, (537) [2023-04-03 06:46:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-04-03 06:46:42,282 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:46:42,282 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:46:42,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:46:42,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:46:42,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1567850739, now seen corresponding path program 1 times [2023-04-03 06:46:42,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:46:42,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234118203] [2023-04-03 06:46:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:46:42,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:46:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:46:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2023-04-03 06:46:43,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:46:43,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234118203] [2023-04-03 06:46:43,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234118203] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:46:43,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:46:43,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:46:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573466899] [2023-04-03 06:46:43,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:46:43,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:46:43,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:46:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:46:43,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:46:43,763 INFO L87 Difference]: Start difference. First operand has 1881 states, 1098 states have (on average 1.278688524590164) internal successors, (1404), 1129 states have internal predecessors, (1404), 546 states have call successors, (546), 224 states have call predecessors, (546), 223 states have return successors, (537), 536 states have call predecessors, (537), 537 states have call successors, (537) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-03 06:46:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:46:46,348 INFO L93 Difference]: Finished difference Result 4899 states and 6576 transitions. [2023-04-03 06:46:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:46:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 290 [2023-04-03 06:46:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:46:46,380 INFO L225 Difference]: With dead ends: 4899 [2023-04-03 06:46:46,380 INFO L226 Difference]: Without dead ends: 3179 [2023-04-03 06:46:46,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:46:46,393 INFO L413 NwaCegarLoop]: 2059 mSDtfsCounter, 2078 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:46:46,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 4011 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-03 06:46:46,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2023-04-03 06:46:46,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 3175. [2023-04-03 06:46:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 1885 states have (on average 1.2816976127320956) internal successors, (2416), 1928 states have internal predecessors, (2416), 896 states have call successors, (896), 395 states have call predecessors, (896), 393 states have return successors, (894), 891 states have call predecessors, (894), 894 states have call successors, (894) [2023-04-03 06:46:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4206 transitions. [2023-04-03 06:46:46,541 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4206 transitions. Word has length 290 [2023-04-03 06:46:46,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:46:46,542 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 4206 transitions. [2023-04-03 06:46:46,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-03 06:46:46,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4206 transitions. [2023-04-03 06:46:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-04-03 06:46:46,547 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:46:46,547 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:46:46,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:46:46,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:46:46,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:46:46,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1981348768, now seen corresponding path program 1 times [2023-04-03 06:46:46,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:46:46,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196110330] [2023-04-03 06:46:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:46:46,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:46:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:46:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2023-04-03 06:46:47,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:46:47,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196110330] [2023-04-03 06:46:47,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196110330] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:46:47,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:46:47,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:46:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522857407] [2023-04-03 06:46:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:46:47,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:46:47,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:46:47,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:46:47,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:46:47,647 INFO L87 Difference]: Start difference. First operand 3175 states and 4206 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-03 06:46:48,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:46:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:46:51,208 INFO L93 Difference]: Finished difference Result 8045 states and 10603 transitions. [2023-04-03 06:46:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:46:51,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 300 [2023-04-03 06:46:51,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:46:51,232 INFO L225 Difference]: With dead ends: 8045 [2023-04-03 06:46:51,233 INFO L226 Difference]: Without dead ends: 4930 [2023-04-03 06:46:51,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:46:51,244 INFO L413 NwaCegarLoop]: 2215 mSDtfsCounter, 1314 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 4129 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:46:51,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 4129 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-03 06:46:51,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4930 states. [2023-04-03 06:46:51,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4930 to 4915. [2023-04-03 06:46:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 2949 states have (on average 1.2875551034248898) internal successors, (3797), 3003 states have internal predecessors, (3797), 1332 states have call successors, (1332), 635 states have call predecessors, (1332), 633 states have return successors, (1332), 1326 states have call predecessors, (1332), 1330 states have call successors, (1332) [2023-04-03 06:46:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 6461 transitions. [2023-04-03 06:46:51,411 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 6461 transitions. Word has length 300 [2023-04-03 06:46:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:46:51,412 INFO L495 AbstractCegarLoop]: Abstraction has 4915 states and 6461 transitions. [2023-04-03 06:46:51,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-03 06:46:51,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 6461 transitions. [2023-04-03 06:46:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-04-03 06:46:51,418 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:46:51,418 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:46:51,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:46:51,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:46:51,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:46:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1661496026, now seen corresponding path program 1 times [2023-04-03 06:46:51,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:46:51,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366932604] [2023-04-03 06:46:51,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:46:51,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:46:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:46:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2023-04-03 06:46:52,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:46:52,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366932604] [2023-04-03 06:46:52,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366932604] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:46:52,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:46:52,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:46:52,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679495486] [2023-04-03 06:46:52,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:46:52,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:46:52,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:46:52,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:46:52,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:46:52,323 INFO L87 Difference]: Start difference. First operand 4915 states and 6461 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2023-04-03 06:46:53,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:46:55,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:46:55,999 INFO L93 Difference]: Finished difference Result 12450 states and 16336 transitions. [2023-04-03 06:46:55,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:46:55,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 296 [2023-04-03 06:46:56,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:46:56,032 INFO L225 Difference]: With dead ends: 12450 [2023-04-03 06:46:56,032 INFO L226 Difference]: Without dead ends: 7595 [2023-04-03 06:46:56,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:46:56,048 INFO L413 NwaCegarLoop]: 2284 mSDtfsCounter, 1565 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:46:56,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1565 Valid, 4133 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-03 06:46:56,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2023-04-03 06:46:56,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 7592. [2023-04-03 06:46:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 4554 states have (on average 1.2843653930610452) internal successors, (5849), 4646 states have internal predecessors, (5849), 2050 states have call successors, (2050), 989 states have call predecessors, (2050), 987 states have return successors, (2052), 2042 states have call predecessors, (2052), 2048 states have call successors, (2052) [2023-04-03 06:46:56,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 9951 transitions. [2023-04-03 06:46:56,278 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 9951 transitions. Word has length 296 [2023-04-03 06:46:56,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:46:56,281 INFO L495 AbstractCegarLoop]: Abstraction has 7592 states and 9951 transitions. [2023-04-03 06:46:56,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2023-04-03 06:46:56,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 9951 transitions. [2023-04-03 06:46:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-04-03 06:46:56,289 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:46:56,290 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:46:56,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:46:56,290 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:46:56,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:46:56,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1350547469, now seen corresponding path program 1 times [2023-04-03 06:46:56,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:46:56,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019315367] [2023-04-03 06:46:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:46:56,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:46:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:46:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2023-04-03 06:46:59,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:46:59,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019315367] [2023-04-03 06:46:59,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019315367] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:46:59,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:46:59,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 06:46:59,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499224916] [2023-04-03 06:46:59,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:46:59,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 06:46:59,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:46:59,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 06:46:59,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 06:46:59,058 INFO L87 Difference]: Start difference. First operand 7592 states and 9951 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-04-03 06:47:00,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:01,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:04,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:04,811 INFO L93 Difference]: Finished difference Result 7823 states and 10194 transitions. [2023-04-03 06:47:04,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 06:47:04,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 370 [2023-04-03 06:47:04,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:04,848 INFO L225 Difference]: With dead ends: 7823 [2023-04-03 06:47:04,848 INFO L226 Difference]: Without dead ends: 7820 [2023-04-03 06:47:04,855 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 [2023-04-03 06:47:04,856 INFO L413 NwaCegarLoop]: 2038 mSDtfsCounter, 2017 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:04,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 4253 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-03 06:47:04,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7820 states. [2023-04-03 06:47:05,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7820 to 7820. [2023-04-03 06:47:05,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7820 states, 4690 states have (on average 1.2816631130063967) internal successors, (6011), 4782 states have internal predecessors, (6011), 2086 states have call successors, (2086), 1045 states have call predecessors, (2086), 1043 states have return successors, (2088), 2078 states have call predecessors, (2088), 2084 states have call successors, (2088) [2023-04-03 06:47:05,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7820 states to 7820 states and 10185 transitions. [2023-04-03 06:47:05,231 INFO L78 Accepts]: Start accepts. Automaton has 7820 states and 10185 transitions. Word has length 370 [2023-04-03 06:47:05,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:05,232 INFO L495 AbstractCegarLoop]: Abstraction has 7820 states and 10185 transitions. [2023-04-03 06:47:05,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-04-03 06:47:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7820 states and 10185 transitions. [2023-04-03 06:47:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2023-04-03 06:47:05,240 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:05,241 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:05,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:47:05,241 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:05,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1296649418, now seen corresponding path program 1 times [2023-04-03 06:47:05,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:05,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018921783] [2023-04-03 06:47:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:05,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1246 trivial. 0 not checked. [2023-04-03 06:47:06,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018921783] [2023-04-03 06:47:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018921783] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:06,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:06,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:06,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529028256] [2023-04-03 06:47:06,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:06,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:06,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:06,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:06,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:06,413 INFO L87 Difference]: Start difference. First operand 7820 states and 10185 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2023-04-03 06:47:07,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:08,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:10,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:12,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:12,464 INFO L93 Difference]: Finished difference Result 15585 states and 20297 transitions. [2023-04-03 06:47:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 06:47:12,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 379 [2023-04-03 06:47:12,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:12,492 INFO L225 Difference]: With dead ends: 15585 [2023-04-03 06:47:12,492 INFO L226 Difference]: Without dead ends: 7836 [2023-04-03 06:47:12,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-03 06:47:12,511 INFO L413 NwaCegarLoop]: 2010 mSDtfsCounter, 2238 mSDsluCounter, 4013 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 6023 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:12,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 6023 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-03 06:47:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7836 states. [2023-04-03 06:47:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7836 to 7808. [2023-04-03 06:47:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7808 states, 4678 states have (on average 1.2806755023514322) internal successors, (5991), 4774 states have internal predecessors, (5991), 2086 states have call successors, (2086), 1045 states have call predecessors, (2086), 1043 states have return successors, (2088), 2074 states have call predecessors, (2088), 2084 states have call successors, (2088) [2023-04-03 06:47:12,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 10165 transitions. [2023-04-03 06:47:12,809 INFO L78 Accepts]: Start accepts. Automaton has 7808 states and 10165 transitions. Word has length 379 [2023-04-03 06:47:12,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:12,809 INFO L495 AbstractCegarLoop]: Abstraction has 7808 states and 10165 transitions. [2023-04-03 06:47:12,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2023-04-03 06:47:12,810 INFO L276 IsEmpty]: Start isEmpty. Operand 7808 states and 10165 transitions. [2023-04-03 06:47:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-04-03 06:47:12,815 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:12,816 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:12,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:47:12,816 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:12,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:12,816 INFO L85 PathProgramCache]: Analyzing trace with hash 773004326, now seen corresponding path program 1 times [2023-04-03 06:47:12,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:12,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224219822] [2023-04-03 06:47:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:12,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1405 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2023-04-03 06:47:13,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:13,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224219822] [2023-04-03 06:47:13,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224219822] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:13,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:13,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:47:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087993314] [2023-04-03 06:47:13,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:13,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:47:13,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:13,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:47:13,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:47:13,581 INFO L87 Difference]: Start difference. First operand 7808 states and 10165 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-04-03 06:47:18,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:18,239 INFO L93 Difference]: Finished difference Result 19960 states and 25982 transitions. [2023-04-03 06:47:18,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:47:18,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 376 [2023-04-03 06:47:18,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:18,275 INFO L225 Difference]: With dead ends: 19960 [2023-04-03 06:47:18,275 INFO L226 Difference]: Without dead ends: 12223 [2023-04-03 06:47:18,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:47:18,295 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 1999 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 4565 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:18,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 4565 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-03 06:47:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12223 states. [2023-04-03 06:47:18,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12223 to 12208. [2023-04-03 06:47:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12208 states, 7353 states have (on average 1.2743098055215558) internal successors, (9370), 7503 states have internal predecessors, (9370), 3205 states have call successors, (3205), 1651 states have call predecessors, (3205), 1649 states have return successors, (3209), 3187 states have call predecessors, (3209), 3203 states have call successors, (3209) [2023-04-03 06:47:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12208 states to 12208 states and 15784 transitions. [2023-04-03 06:47:18,717 INFO L78 Accepts]: Start accepts. Automaton has 12208 states and 15784 transitions. Word has length 376 [2023-04-03 06:47:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:18,717 INFO L495 AbstractCegarLoop]: Abstraction has 12208 states and 15784 transitions. [2023-04-03 06:47:18,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-04-03 06:47:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 12208 states and 15784 transitions. [2023-04-03 06:47:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-04-03 06:47:18,729 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:18,729 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:18,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:47:18,730 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:18,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:18,730 INFO L85 PathProgramCache]: Analyzing trace with hash -751960353, now seen corresponding path program 1 times [2023-04-03 06:47:18,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:18,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395210878] [2023-04-03 06:47:18,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:18,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:19,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2023-04-03 06:47:19,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:19,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395210878] [2023-04-03 06:47:19,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395210878] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:19,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:19,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:19,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078265241] [2023-04-03 06:47:19,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:19,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:19,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:19,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:19,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:19,716 INFO L87 Difference]: Start difference. First operand 12208 states and 15784 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 06:47:26,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:26,170 INFO L93 Difference]: Finished difference Result 24377 states and 31507 transitions. [2023-04-03 06:47:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 06:47:26,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) Word has length 403 [2023-04-03 06:47:26,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:26,211 INFO L225 Difference]: With dead ends: 24377 [2023-04-03 06:47:26,211 INFO L226 Difference]: Without dead ends: 12208 [2023-04-03 06:47:26,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:26,245 INFO L413 NwaCegarLoop]: 2008 mSDtfsCounter, 0 mSDsluCounter, 6017 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8025 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:26,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8025 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-03 06:47:26,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12208 states. [2023-04-03 06:47:26,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12208 to 12208. [2023-04-03 06:47:26,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12208 states, 7353 states have (on average 1.2726778185774514) internal successors, (9358), 7503 states have internal predecessors, (9358), 3205 states have call successors, (3205), 1651 states have call predecessors, (3205), 1649 states have return successors, (3209), 3187 states have call predecessors, (3209), 3203 states have call successors, (3209) [2023-04-03 06:47:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12208 states to 12208 states and 15772 transitions. [2023-04-03 06:47:26,755 INFO L78 Accepts]: Start accepts. Automaton has 12208 states and 15772 transitions. Word has length 403 [2023-04-03 06:47:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:26,755 INFO L495 AbstractCegarLoop]: Abstraction has 12208 states and 15772 transitions. [2023-04-03 06:47:26,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 06:47:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 12208 states and 15772 transitions. [2023-04-03 06:47:26,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-04-03 06:47:26,767 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:26,767 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:26,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 06:47:26,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:26,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:26,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1542601501, now seen corresponding path program 1 times [2023-04-03 06:47:26,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:26,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867786573] [2023-04-03 06:47:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:26,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-04-03 06:47:27,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:27,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867786573] [2023-04-03 06:47:27,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867786573] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:27,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:27,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:47:27,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496677439] [2023-04-03 06:47:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:27,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:47:27,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:27,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:47:27,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:47:27,671 INFO L87 Difference]: Start difference. First operand 12208 states and 15772 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2023-04-03 06:47:31,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:31,160 INFO L93 Difference]: Finished difference Result 28397 states and 36582 transitions. [2023-04-03 06:47:31,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:47:31,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 417 [2023-04-03 06:47:31,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:31,207 INFO L225 Difference]: With dead ends: 28397 [2023-04-03 06:47:31,207 INFO L226 Difference]: Without dead ends: 16260 [2023-04-03 06:47:31,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:47:31,237 INFO L413 NwaCegarLoop]: 3137 mSDtfsCounter, 1901 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:31,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 4558 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-03 06:47:31,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16260 states. [2023-04-03 06:47:31,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16260 to 16221. [2023-04-03 06:47:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16221 states, 9858 states have (on average 1.2741935483870968) internal successors, (12561), 10033 states have internal predecessors, (12561), 4123 states have call successors, (4123), 2241 states have call predecessors, (4123), 2239 states have return successors, (4133), 4100 states have call predecessors, (4133), 4121 states have call successors, (4133) [2023-04-03 06:47:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16221 states to 16221 states and 20817 transitions. [2023-04-03 06:47:31,705 INFO L78 Accepts]: Start accepts. Automaton has 16221 states and 20817 transitions. Word has length 417 [2023-04-03 06:47:31,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:31,706 INFO L495 AbstractCegarLoop]: Abstraction has 16221 states and 20817 transitions. [2023-04-03 06:47:31,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2023-04-03 06:47:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 16221 states and 20817 transitions. [2023-04-03 06:47:31,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-04-03 06:47:31,721 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:31,721 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:31,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 06:47:31,722 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:31,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:31,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1908664895, now seen corresponding path program 1 times [2023-04-03 06:47:31,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:31,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237488777] [2023-04-03 06:47:31,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:31,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2023-04-03 06:47:35,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:35,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237488777] [2023-04-03 06:47:35,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237488777] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:47:35,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242551000] [2023-04-03 06:47:35,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:35,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:47:35,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:47:35,886 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) [2023-04-03 06:47:35,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:47:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:38,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 11283 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-03 06:47:38,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:47:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2023-04-03 06:47:38,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:47:38,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242551000] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:38,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:47:38,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-04-03 06:47:38,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709833872] [2023-04-03 06:47:38,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:38,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 06:47:38,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:38,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 06:47:38,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:47:38,573 INFO L87 Difference]: Start difference. First operand 16221 states and 20817 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 4 states have call predecessors, (51), 3 states have call successors, (51) [2023-04-03 06:47:47,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:47,198 INFO L93 Difference]: Finished difference Result 32309 states and 41481 transitions. [2023-04-03 06:47:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:47:47,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 4 states have call predecessors, (51), 3 states have call successors, (51) Word has length 415 [2023-04-03 06:47:47,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:47,244 INFO L225 Difference]: With dead ends: 32309 [2023-04-03 06:47:47,244 INFO L226 Difference]: Without dead ends: 16003 [2023-04-03 06:47:47,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:47:47,277 INFO L413 NwaCegarLoop]: 2005 mSDtfsCounter, 4 mSDsluCounter, 8005 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10010 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:47,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10010 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-04-03 06:47:47,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16003 states. [2023-04-03 06:47:47,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16003 to 15883. [2023-04-03 06:47:47,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15883 states, 9672 states have (on average 1.276985111662531) internal successors, (12351), 9849 states have internal predecessors, (12351), 4045 states have call successors, (4045), 2179 states have call predecessors, (4045), 2165 states have return successors, (4043), 4008 states have call predecessors, (4043), 4043 states have call successors, (4043) [2023-04-03 06:47:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15883 states to 15883 states and 20439 transitions. [2023-04-03 06:47:47,795 INFO L78 Accepts]: Start accepts. Automaton has 15883 states and 20439 transitions. Word has length 415 [2023-04-03 06:47:47,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:47,796 INFO L495 AbstractCegarLoop]: Abstraction has 15883 states and 20439 transitions. [2023-04-03 06:47:47,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 4 states have call predecessors, (51), 3 states have call successors, (51) [2023-04-03 06:47:47,796 INFO L276 IsEmpty]: Start isEmpty. Operand 15883 states and 20439 transitions. [2023-04-03 06:47:47,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2023-04-03 06:47:47,807 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:47,807 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:47,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-03 06:47:48,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:47:48,021 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:48,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:48,022 INFO L85 PathProgramCache]: Analyzing trace with hash 172108230, now seen corresponding path program 1 times [2023-04-03 06:47:48,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:48,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132601684] [2023-04-03 06:47:48,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:48,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2023-04-03 06:47:49,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:49,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132601684] [2023-04-03 06:47:49,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132601684] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:49,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:49,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:49,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954042083] [2023-04-03 06:47:49,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:49,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:49,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:49,560 INFO L87 Difference]: Start difference. First operand 15883 states and 20439 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (57), 4 states have call predecessors, (57), 3 states have call successors, (57) [2023-04-03 06:47:50,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:52,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:53,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:58,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:00,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:48:00,184 INFO L93 Difference]: Finished difference Result 35504 states and 45672 transitions. [2023-04-03 06:48:00,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 06:48:00,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (57), 4 states have call predecessors, (57), 3 states have call successors, (57) Word has length 445 [2023-04-03 06:48:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:48:00,264 INFO L225 Difference]: With dead ends: 35504 [2023-04-03 06:48:00,264 INFO L226 Difference]: Without dead ends: 19692 [2023-04-03 06:48:00,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-03 06:48:00,299 INFO L413 NwaCegarLoop]: 2177 mSDtfsCounter, 1890 mSDsluCounter, 4925 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 7102 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-04-03 06:48:00,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 7102 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-04-03 06:48:00,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19692 states. [2023-04-03 06:48:00,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19692 to 19587. [2023-04-03 06:48:00,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19587 states, 12005 states have (on average 1.2798000832986256) internal successors, (15364), 12208 states have internal predecessors, (15364), 4903 states have call successors, (4903), 2692 states have call predecessors, (4903), 2678 states have return successors, (4907), 4860 states have call predecessors, (4907), 4901 states have call successors, (4907) [2023-04-03 06:48:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19587 states to 19587 states and 25174 transitions. [2023-04-03 06:48:00,919 INFO L78 Accepts]: Start accepts. Automaton has 19587 states and 25174 transitions. Word has length 445 [2023-04-03 06:48:00,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:48:00,919 INFO L495 AbstractCegarLoop]: Abstraction has 19587 states and 25174 transitions. [2023-04-03 06:48:00,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (57), 4 states have call predecessors, (57), 3 states have call successors, (57) [2023-04-03 06:48:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand 19587 states and 25174 transitions. [2023-04-03 06:48:00,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-04-03 06:48:00,937 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:48:00,937 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:48:00,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 06:48:00,938 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:48:00,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:48:00,939 INFO L85 PathProgramCache]: Analyzing trace with hash -44875268, now seen corresponding path program 1 times [2023-04-03 06:48:00,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:48:00,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740388244] [2023-04-03 06:48:00,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:00,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:48:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2023-04-03 06:48:05,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:48:05,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740388244] [2023-04-03 06:48:05,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740388244] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:48:05,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232017156] [2023-04-03 06:48:05,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:05,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:05,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:48:05,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:48:05,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 06:48:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:09,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 11471 conjuncts, 36 conjunts are in the unsatisfiable core [2023-04-03 06:48:09,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:48:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2023-04-03 06:48:09,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:48:09,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232017156] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:48:09,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:48:09,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 10 [2023-04-03 06:48:09,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779529450] [2023-04-03 06:48:09,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:48:09,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-03 06:48:09,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:48:09,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-03 06:48:09,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-03 06:48:09,622 INFO L87 Difference]: Start difference. First operand 19587 states and 25174 transitions. Second operand has 10 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (55), 6 states have call predecessors, (55), 3 states have call successors, (55) [2023-04-03 06:48:10,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:12,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:13,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:14,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:15,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:16,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:17,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:19,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:21,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:29,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:48:29,183 INFO L93 Difference]: Finished difference Result 39453 states and 50792 transitions. [2023-04-03 06:48:29,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-03 06:48:29,183 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (55), 6 states have call predecessors, (55), 3 states have call successors, (55) Word has length 440 [2023-04-03 06:48:29,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:48:29,246 INFO L225 Difference]: With dead ends: 39453 [2023-04-03 06:48:29,246 INFO L226 Difference]: Without dead ends: 19768 [2023-04-03 06:48:29,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-04-03 06:48:29,284 INFO L413 NwaCegarLoop]: 1994 mSDtfsCounter, 262 mSDsluCounter, 15847 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 17841 SdHoareTripleChecker+Invalid, 2131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:48:29,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 17841 Invalid, 2131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2128 Invalid, 1 Unknown, 0 Unchecked, 18.8s Time] [2023-04-03 06:48:29,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19768 states. [2023-04-03 06:48:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19768 to 19726. [2023-04-03 06:48:29,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19726 states, 12099 states have (on average 1.2801057938672618) internal successors, (15488), 12325 states have internal predecessors, (15488), 4917 states have call successors, (4917), 2701 states have call predecessors, (4917), 2709 states have return successors, (5017), 4874 states have call predecessors, (5017), 4915 states have call successors, (5017) [2023-04-03 06:48:29,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19726 states to 19726 states and 25422 transitions. [2023-04-03 06:48:29,957 INFO L78 Accepts]: Start accepts. Automaton has 19726 states and 25422 transitions. Word has length 440 [2023-04-03 06:48:29,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:48:29,957 INFO L495 AbstractCegarLoop]: Abstraction has 19726 states and 25422 transitions. [2023-04-03 06:48:29,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (55), 6 states have call predecessors, (55), 3 states have call successors, (55) [2023-04-03 06:48:29,958 INFO L276 IsEmpty]: Start isEmpty. Operand 19726 states and 25422 transitions. [2023-04-03 06:48:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2023-04-03 06:48:29,976 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:48:29,976 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:48:30,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 06:48:30,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-04-03 06:48:30,197 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:48:30,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:48:30,198 INFO L85 PathProgramCache]: Analyzing trace with hash -500481877, now seen corresponding path program 1 times [2023-04-03 06:48:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:48:30,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635360712] [2023-04-03 06:48:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:48:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1618 trivial. 0 not checked. [2023-04-03 06:48:33,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:48:33,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635360712] [2023-04-03 06:48:33,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635360712] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:48:33,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661925840] [2023-04-03 06:48:33,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:33,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:33,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:48:33,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:48:33,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 06:48:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:37,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 11534 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:48:37,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:48:37,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-04-03 06:48:37,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:48:37,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661925840] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:48:37,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:48:37,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2023-04-03 06:48:37,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820884746] [2023-04-03 06:48:37,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:48:37,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 06:48:37,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:48:37,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 06:48:37,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:48:37,887 INFO L87 Difference]: Start difference. First operand 19726 states and 25422 transitions. Second operand has 6 states, 4 states have (on average 35.0) internal successors, (140), 6 states have internal predecessors, (140), 3 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-04-03 06:48:38,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:48:46,994 INFO L93 Difference]: Finished difference Result 39447 states and 50930 transitions. [2023-04-03 06:48:46,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:48:46,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 35.0) internal successors, (140), 6 states have internal predecessors, (140), 3 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 454 [2023-04-03 06:48:46,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:48:47,058 INFO L225 Difference]: With dead ends: 39447 [2023-04-03 06:48:47,058 INFO L226 Difference]: Without dead ends: 19745 [2023-04-03 06:48:47,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-04-03 06:48:47,087 INFO L413 NwaCegarLoop]: 1987 mSDtfsCounter, 3 mSDsluCounter, 7922 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9909 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:48:47,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9909 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-04-03 06:48:47,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19745 states. [2023-04-03 06:48:47,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19745 to 19745. [2023-04-03 06:48:47,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19745 states, 12118 states have (on average 1.2796666116520878) internal successors, (15507), 12344 states have internal predecessors, (15507), 4917 states have call successors, (4917), 2701 states have call predecessors, (4917), 2709 states have return successors, (5017), 4874 states have call predecessors, (5017), 4915 states have call successors, (5017) [2023-04-03 06:48:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19745 states to 19745 states and 25441 transitions. [2023-04-03 06:48:47,700 INFO L78 Accepts]: Start accepts. Automaton has 19745 states and 25441 transitions. Word has length 454 [2023-04-03 06:48:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:48:47,700 INFO L495 AbstractCegarLoop]: Abstraction has 19745 states and 25441 transitions. [2023-04-03 06:48:47,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 35.0) internal successors, (140), 6 states have internal predecessors, (140), 3 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-04-03 06:48:47,701 INFO L276 IsEmpty]: Start isEmpty. Operand 19745 states and 25441 transitions. [2023-04-03 06:48:47,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2023-04-03 06:48:47,716 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:48:47,717 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:48:47,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 06:48:47,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:47,941 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:48:47,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:48:47,942 INFO L85 PathProgramCache]: Analyzing trace with hash -441188597, now seen corresponding path program 1 times [2023-04-03 06:48:47,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:48:47,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998187782] [2023-04-03 06:48:47,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:47,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:48:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1688 trivial. 0 not checked. [2023-04-03 06:48:53,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:48:53,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998187782] [2023-04-03 06:48:53,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998187782] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:48:53,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084561050] [2023-04-03 06:48:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:53,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:53,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:48:53,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:48:53,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 06:48:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:57,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 11654 conjuncts, 251 conjunts are in the unsatisfiable core [2023-04-03 06:48:57,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:48:58,210 INFO L321 Elim1Store]: treesize reduction 530, result has 14.9 percent of original size [2023-04-03 06:48:58,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 147216 treesize of output 145030 [2023-04-03 06:48:59,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:48:59,208 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29621 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29621))))) is different from true [2023-04-03 06:48:59,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:48:59,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:48:59,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:48:59,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:48:59,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:48:59,382 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29622 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29622))))) is different from true [2023-04-03 06:48:59,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:48:59,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:48:59,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:48:59,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:48:59,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:48:59,579 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29623 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29623))))) is different from true [2023-04-03 06:48:59,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:48:59,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:48:59,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:48:59,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:48:59,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:48:59,775 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29624 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29624))))) is different from true [2023-04-03 06:48:59,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:48:59,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:48:59,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:48:59,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:48:59,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:48:59,999 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29625 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29625))))) is different from true [2023-04-03 06:49:00,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:00,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:00,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:00,186 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| 1))) is different from true [2023-04-03 06:49:00,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,276 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-04-03 06:49:00,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:00,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:00,381 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29627 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29627))))) is different from true [2023-04-03 06:49:00,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:00,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:00,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:00,500 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29628 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29628))))) is different from true [2023-04-03 06:49:00,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:00,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:00,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:00,661 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29629 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29629))))) is different from true [2023-04-03 06:49:00,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:00,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:00,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:00,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-03 06:49:00,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-03 06:49:00,893 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-04-03 06:49:00,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-04-03 06:49:00,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:00,960 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29631 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29631))))) is different from true [2023-04-03 06:49:00,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:00,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:01,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:01,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:01,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:01,070 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29632 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29632))))) is different from true [2023-04-03 06:49:01,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:01,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:01,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:01,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:01,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:01,191 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29633 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29633))))) is different from true [2023-04-03 06:49:01,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:01,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:01,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:01,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:01,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:01,308 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29634 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29634))))) is different from true [2023-04-03 06:49:01,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:01,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:01,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:01,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:02,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-03 06:49:02,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-03 06:49:02,614 WARN L861 $PredicateComparison]: unable to prove that (and (exists ((|v_main_~#ldvarg15~0.base_BEFORE_CALL_20| Int)) (and (= (select |c_#valid| |v_main_~#ldvarg15~0.base_BEFORE_CALL_20|) 1) (< |c_#StackHeapBarrier| |v_main_~#ldvarg15~0.base_BEFORE_CALL_20|) (not (= |v_main_~#ldvarg15~0.base_BEFORE_CALL_20| 0)))) (exists ((v_ArrVal_29637 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_29637) |c_#memory_int|))) is different from true [2023-04-03 06:49:02,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-04-03 06:49:02,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-03 06:49:02,872 WARN L861 $PredicateComparison]: unable to prove that (and (exists ((|v_main_~#ldvarg15~0.base_BEFORE_CALL_20| Int)) (and (= (select |c_#valid| |v_main_~#ldvarg15~0.base_BEFORE_CALL_20|) 1) (< |c_#StackHeapBarrier| |v_main_~#ldvarg15~0.base_BEFORE_CALL_20|) (not (= |v_main_~#ldvarg15~0.base_BEFORE_CALL_20| 0)))) (exists ((v_ArrVal_29638 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_29638)))) is different from true [2023-04-03 06:49:02,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-04-03 06:49:03,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-03 06:49:03,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-04-03 06:49:03,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-03 06:49:03,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-04-03 06:49:04,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-03 06:49:04,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:04,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,779 WARN L861 $PredicateComparison]: unable to prove that (or (and (exists ((v_ArrVal_29644 (Array Int Int))) (= (store |c_old(#memory_int)| 0 v_ArrVal_29644) |c_#memory_int|)) (exists ((v_ArrVal_29641 Int) (ldv_malloc_~tmp~0.base Int)) (and (= |c_#valid| (store |c_old(#valid)| ldv_malloc_~tmp~0.base v_ArrVal_29641)) (< ldv_malloc_~tmp~0.base |c_#StackHeapBarrier|)))) (exists ((v_ArrVal_29644 (Array Int Int)) (~acm_tty_driver~0.base Int)) (and (exists ((v_ArrVal_29641 Int) (ldv_malloc_~tmp~0.base Int)) (and (= |c_#valid| (store |c_old(#valid)| ldv_malloc_~tmp~0.base v_ArrVal_29641)) (< ldv_malloc_~tmp~0.base |c_#StackHeapBarrier|) (<= ~acm_tty_driver~0.base ldv_malloc_~tmp~0.base))) (= (store |c_old(#memory_int)| ~acm_tty_driver~0.base v_ArrVal_29644) |c_#memory_int|)))) is different from true [2023-04-03 06:49:04,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:04,996 WARN L861 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_29646 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_29646) |c_#memory_int|)) is different from true [2023-04-03 06:49:05,007 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_29646 (Array Int Int)) (|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| Int)) (and (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| |ldv_init_zalloc_#t~malloc33.base|) (= (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| v_ArrVal_29646) |c_#memory_int|))) (exists ((v_ArrVal_29645 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29645))))) is different from true [2023-04-03 06:49:05,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:05,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:05,048 WARN L861 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_29646 (Array Int Int)) (|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| Int) (|ldv_init_zalloc_#t~malloc33.base| Int) (v_ArrVal_29645 Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| |ldv_init_zalloc_#t~malloc33.base|) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29645)) (= (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| v_ArrVal_29646) |c_#memory_int|))) is different from true [2023-04-03 06:49:05,539 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-03 06:49:05,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-04-03 06:49:05,560 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-03 06:49:05,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-04-03 06:49:05,810 INFO L321 Elim1Store]: treesize reduction 66, result has 39.4 percent of original size [2023-04-03 06:49:05,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 66 treesize of output 127 [2023-04-03 06:49:05,944 INFO L321 Elim1Store]: treesize reduction 53, result has 43.0 percent of original size [2023-04-03 06:49:05,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 114 [2023-04-03 06:49:06,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:06,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:06,167 INFO L321 Elim1Store]: treesize reduction 123, result has 0.8 percent of original size [2023-04-03 06:49:06,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 10 [2023-04-03 06:49:06,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:06,807 INFO L321 Elim1Store]: treesize reduction 123, result has 0.8 percent of original size [2023-04-03 06:49:06,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 12 [2023-04-03 06:49:07,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-03 06:49:07,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:07,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:07,279 WARN L861 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_29648 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_29648) |c_#memory_int|)) is different from true [2023-04-03 06:49:07,289 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| Int) (v_ArrVal_29648 (Array Int Int))) (and (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| |ldv_init_zalloc_#t~malloc33.base|) (= (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| v_ArrVal_29648) |c_#memory_int|))) (exists ((v_ArrVal_29645 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29645))))) is different from true [2023-04-03 06:49:07,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:07,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:07,350 WARN L861 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| Int) (v_ArrVal_29648 (Array Int Int)) (|ldv_init_zalloc_#t~malloc33.base| Int) (v_ArrVal_29645 Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| |ldv_init_zalloc_#t~malloc33.base|) (= (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| v_ArrVal_29648) |c_#memory_int|) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29645)))) is different from true [2023-04-03 06:49:07,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:07,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:07,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:07,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-04-03 06:49:07,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-03 06:49:07,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:07,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:07,472 WARN L861 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_29650 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_29650) |c_#memory_int|)) is different from true [2023-04-03 06:49:07,482 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc33.base| Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| Int) (v_ArrVal_29650 (Array Int Int))) (and (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| |ldv_init_zalloc_#t~malloc33.base|) (= (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| v_ArrVal_29650) |c_#memory_int|))) (exists ((v_ArrVal_29645 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29645))))) is different from true [2023-04-03 06:49:07,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:07,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:07,531 WARN L861 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| Int) (|ldv_init_zalloc_#t~malloc33.base| Int) (v_ArrVal_29650 (Array Int Int)) (v_ArrVal_29645 Int)) (and (< |ldv_init_zalloc_#t~malloc33.base| |c_#StackHeapBarrier|) (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| |ldv_init_zalloc_#t~malloc33.base|) (= (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| v_ArrVal_29650) |c_#memory_int|) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc33.base| v_ArrVal_29645)))) is different from true [2023-04-03 06:49:07,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:07,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-04-03 06:49:07,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:07,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-04-03 06:49:07,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:07,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-03 06:49:07,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:07,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:07,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:49:07,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:49:07,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:49:07,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-04-03 06:49:07,880 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-03 06:49:07,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-04-03 06:49:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 274 proven. 100 refuted. 1 times theorem prover too weak. 652 trivial. 718 not checked. [2023-04-03 06:49:08,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:49:08,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084561050] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:49:08,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1195897367] [2023-04-03 06:49:08,382 INFO L159 IcfgInterpreter]: Started Sifa with 220 locations of interest [2023-04-03 06:49:08,382 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 06:49:08,385 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 06:49:08,388 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 06:49:08,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs